UI components serialization

Hello,
someone know class/framekork/swc etc.. to serialize Flex UI components?
Thank you.

For me it's not a bad idea...
On Silverlight you can, and it's very useful. For example when want that user can add to the stage some components, and change their dimansion, color, so you can save the state in a preference file without checking all properties of the object...
Also, I think that it's already possible with the new flex ...

Similar Messages

Flex Serialization for inbuilt components like-HBox, VBox, Panel, Canvas, DataGrid-

Here is the problem...I'm working on a flex application(actionscript)...
I have a Panel in my application which contains 2 buttons and 3 canvas components at certain posstions...now I want to store the current state of panel in some file or database...and afterwards I want to load the same panel again in my application when I come back and run the application...
so I tried to convert whole panel into ByteArray object using its readObject() and writeObject() methods...but when I read the ByteArray and add the panel in my application using addChild() method it doesn't add anything and there was no error or fault...
writeObject creates ByteArray that I am able to print but when i get it back and add child, I am not able to get the panel and it's children...
if anyone can help...it would be appreciated...thanks in advance...

yes I did type casting when I read the object like var panelObject:Panel = buffer.readObject() as Panel;
where buffer is object type ByteArray...

Repetitive serialization components

I'm having a huge problem with Premiere Pro shutting down randomly throughout the day. Here is the error report I've gotten a few times now:
Premiere Pro has encountered an error.
[/singlebarrel/releases/2014.03/shared/adobe/
MediaCore/Backend/Src/Core/
RepetitiveSerializationComponents.cpp-699]
I can't find anything about this anywhere and I have no idea what it means. The only thing I can think of is that maybe we're running too many computers on the same adobe account. I don't think it's the case, but I'm not sure. Has anyone else come across this?

I just checked them all and I don't have more than 2 computers on one account, so that shouldn't be the problem

Dynamically creating components on the page gives problems

Hello,
we are creating a number of custom UI components dynamically on the page, depending on informations we only know at runtime (for some reasons, we could not just create them statically and hide and show them dynamically- please don't suggest doing this way for now).
The custom components are derived from ADF components, this way, as an example:
public class MyRichInputText extends RichInputText implements Serializable {
}They are successfully created dynamically in a bean associated with a button and used for the first time. That is, once wle navigate the page, for example via tabs or fragments, we always get a "Session timeout" exception. Below is the log from the server:
<Error> <org.apache.myfaces.trinidadinternal.application.StateManagerImpl> <BEA-000000>
java.lang.InstantiationException: mycompany.lib.MyRichInputText
 at java.lang.Class.newInstance0(Class.java:340)
<Warning> <oracle.adfinternal.view.faces.lifecycle.LifecycleImpl> <BEA-000000> *<ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase RENDER_RESPONSE 6*
java.lang.NullPointerException
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:978)
javax.faces.application.ViewExpiredException: viewId:/myPage - ADF_FACES-30107:The view state of the page has expired. Reload the page.
Also, just to your knowledge, we use javax.faces.STATE_SAVING_METHOD="client" in web.xml. Note that MyRichInputText is already Serializable.
Do you have any solution?

Hello Frank,
thanks for the quick answer. Below is the full stack. I think it will be difficult to quickly change all the code by building RichInputText directly. I'll do my best to be back to you with all the necessary informations as soon as possible. However, for now, if you have any possible idea by just look at the following more accurate log, let me know:
<Error> <org.apache.myfaces.trinidadinternal.application.StateManagerImpl> <BEA-000000> <
java.lang.InstantiationException: mycompany.lib.MyRichInputText
 at java.lang.Class.newInstance0(Class.java:340)
 at java.lang.Class.newInstance(Class.java:308)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:86)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:95)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.Structure.createComponent(Structure.java:107)
 at org.apache.myfaces.trinidadinternal.application.StateManagerImpl.restoreView(StateManagerImpl.java:697)
 at com.sun.faces.application.view.ViewHandlingStrategy.restoreView(ViewHandlingStrategy.java:123)
 at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.restoreView(ViewDeclarationLanguageFactoryImpl.java:334)
 at com.sun.faces.application.view.MultiViewHandler.restoreView(MultiViewHandler.java:148)
 at javax.faces.application.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:288)
 at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.restoreView(ViewHandlerImpl.java:245)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._restoreView(LifecycleImpl.java:689)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:342)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:204)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
 at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
 at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
 at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
 at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:122)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:469)
 at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:469)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)
 at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:181)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
 at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
 at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
 at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
 at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
 at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
 at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
 at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
 at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
>
<Mar 28, 2012 12:28:46 PM CEST> <Warning> <oracle.adfinternal.view.faces.lifecycle.LifecycleImpl> <BEA-000000> <ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase RENDER_RESPONSE 6
java.lang.NullPointerException
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:978)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:334)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:232)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313)
 at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
 at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
 at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
 at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
 at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
 at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:122)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
 at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)
 at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
 at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:180)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
 at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
 at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
 at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
 at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
 at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
 at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
 at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
 at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
 at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
 at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
 at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
>
javax.faces.application.ViewExpiredException: viewId:/myPage - ADF_FACES-30107:The view state of the page has expired. Reload the page.
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._restoreView(LifecycleImpl.java:718)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:341)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:204)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
 at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
 at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
 at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
 at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:122)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:469)
 at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:469)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)
 at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:181)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
 at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
 at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
 at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
 at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
 at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
 at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
 at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
 at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)

Adding Components to a JPanel not working correctly

I'm trying to build a JFrame that contains a parent JPanel that will hold a JPanel used to display a message view, a vertical strut and a JPanel that holds VCR-like buttons to cycle through the messages.
My parent JPanel uses a BorderLayout and the Border is a TitledBorder which tells which product you are viewing (i.e., Message 1 of 5). I build the message JPanel, vertical strut and button JPanel and add them all in order to the parent JPanel which then gets added to the rootContentPane of the JFrame. All that appears is the parent JPanel's TitledBorder, the strut and the button JPanel. Using JSwat, I've been able to determine that the message JPanel has 0 for both its height and width after adding the message components to the JPanel.
I create the message JPanel with a BorderLayout and an OvalBorder as copied from Manning Press's Swing book (which works fine in other JFrames that I have built), then add other components as necessary to the individual messages (mostly items around the edges with a central display for the actual message). What I can't figure out is why the height and width of the message JPanel isn't growing as I add components.
I had previously used the same code to display a single message (minus the parent JPanel, strut and button JPanel) where I added the border panels (northPanel, eastPanel, southPanel and westPanel) created in createMsgPanel() directly to the contentPane and it worked perfectly, so I know that the code that adds the message works fine. Then, the requirements changed (go figure) and I had to display multiple messages from the same screen.
Here's what I've got:
public class Layout
 extends JFrame
 implements ActionListener
 private MissionData missionData;
 private JPanel messagePanel = null;
 private int index = 0;
 private int numMsgs = 0;
 private JPanel mainPanel = null;
 private JPanel buttonPanel = null;
 private TitledBorder titledBorder = null;
 Layout ()
 public Layout (MissionData msn)
 super ();
 missionData = msn;
 setSize (640, 640);
 setIconImage (new ImageIcon ("Icon.jpg").getImage());
 setTitle (((Message) (missionData.messages.elementAt(0))).name);
 numMsgs = missionData.messages.size();
 titledBorder = new TitledBorder (
 new LineBorder (Color.BLACK),
 "Message " + String.valueOf (index + 1) +
 " of " + String.valueOf (numMsgs),
 TitledBorder.LEFT,
 TitledBorder.TOP);
 mainPanel = new JPanel ();
 mainPanel.setLayout (new BorderLayout());
 mainPanel.setBorder (new CompoundBorder (titledBorder,
 new EmptyBorder (
 new Insets (3, 3, 3, 3))));
 messagePanel = new JPanel();
 messagePanel.setLayout (new BorderLayout ());
 messagePanel.setBorder (new CompoundBorder (
 new EmptyBorder (50, 50, 50, 50),
 new OvalBorder (20, 20, Color.white)));
 messagePanel.setBackground (Color.black);
 createButtonPanel ();
 createMsgPanel ((Message) missionData.messages.elementAt (0));
 mainPanel.add (messagePanel);
 mainPanel.add (Box.createVerticalStrut (20));
 mainPanel.add (buttonPanel);
 Container mainContentPane = getContentPane();
 mainContentPane.add (mainPanel);
 private void createMsgPanel (Message msg)
 MessageType msgType = null;
 if (msg.getFunctionalAreaDesignator(0) == Message.GENERAL_INFO)
 if (msg.getMessageNumber(0) == 1)
 msgType = FREE_TEXT;
 else if (msg.getFunctionalAreaDesignator(0) == Message.SUPPORT)
 if (msg.getMessageNumber(0) == 33)
 msgType = CAS;
 else if (msg.getMessageNumber(0) == 34)
 msgType = OSR;
 // Setup NORTH Panel of Display
 JPanel northPanel = new JPanel (new GridLayout (2, 6));
 northPanel.setBackground (Color.black);
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("<html>RECV</html>", false));
 if (msgType == CAS)
 northPanel.add (new JTIMLabel ("<html>PCLR</html>", false));
 northPanel.add (new JTIMLabel ("<html>MSN</html>", false));
 northPanel.add (new JTIMLabel ("<html>SAVE</html>", false));
 else if (msgType == OSR)
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 else if (msgType == FREE_TEXT)
 northPanel.add (new JTIMLabel ("<html>ERASE</html>", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("<html>BRDCST</html>", false));
 northPanel.add (new JTIMLabel ("<html>SEND</html>", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 if (msgType == CAS)
 northPanel.add (new JTIMLabel ("<html>CAS</html>", false));
 else if (msgType == OSR)
 northPanel.add (new JTIMLabel ("<html>OSR</html>", false));
 else if (msgType == FREE_TEXT)
 northPanel.add (new JTIMLabel ("<html>FTXT</html>", false));
 if (msgType == FREE_TEXT)
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 else
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("<html>CAS</html>", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 northPanel.add (new JTIMLabel ("", false));
 messagePanel.add (northPanel, BorderLayout.NORTH);
 // Setup EAST Box of Display
 Box eastBox = new Box (BoxLayout.Y_AXIS);
 if (msgType == CAS)
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("<html>F T X T</html>", false));
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("<html>O S R</html>", false));
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("<html>D P I P</html>", false));
 eastBox.add (Box.createGlue());
 else if (msgType == FREE_TEXT)
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("", false));
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("", false));
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("", false));
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("", false));
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("<html>W L C O</html>", false));
 eastBox.add (Box.createGlue());
 eastBox.add (new JTIMLabel ("<html>C N T C O</html>",
 false));
 eastBox.add (Box.createGlue());
 messagePanel.add (eastBox, BorderLayout.EAST);
 // Setup SOUTH Panel of Display
 JPanel southPanel = new JPanel (new GridLayout (2, 5));
 southPanel.setBackground (Color.black);
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("<html>ON</html>", false));
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("", false));
 if (msgType == CAS)
 southPanel.add (new JTIMLabel ("<html>USE</html>", false));
 southPanel.add (new JTIMLabel ("<html>RCALL</html>", false));
 else if ((msgType == OSR) || (msgType == FREE_TEXT))
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("", false));
 southPanel.add (new JTIMLabel ("<html>MENU</html>", false));
 southPanel.add (new JTIMLabel ("<html>VMF</html>", false));
 if (msgType == CAS)
 southPanel.add (new JTIMLabel ("<html>NETS</html>", false));
 else if ((msgType == OSR) || (msgType == FREE_TEXT))
 southPanel.add (new JTIMLabel ("<html>CAS</html>", false));
 southPanel.add (new JTIMLabel ("", false));
 messagePanel.add (southPanel, BorderLayout.SOUTH);
 // Setup WEST Box of Display
 JTIMLabel incrLabel = null;
 JTIMLabel decrLabel = null;
 Box westBox = new Box (BoxLayout.Y_AXIS);
 if (msgType == FREE_TEXT)
 westBox.add (Box.createGlue());
 westBox.add (new JTIMLabel ("", false));
 westBox.add (Box.createGlue());
 westBox.add (new JTIMLabel ("", false));
 westBox.add (Box.createGlue());
 westBox.add (new JTIMLabel ("", false));
 westBox.add (Box.createGlue());
 westBox.add (new JTIMLabel ("<html>N E X T</html>", false));
 westBox.add (Box.createGlue());
 westBox.add (new JTIMLabel ("<html>P R E V</html>", false));
 else
 westBox.add (Box.createGlue());
 westBox.add (new JTIMLabel ("<html>U F C</html>", false));
 westBox.add (Box.createGlue());
 if (msgType == CAS)
 westBox.add (new JTIMLabel ("<html>/\\</html>", false));
 westBox.add (Box.createGlue());
 westBox.add (new JTIMLabel ("<html>\\/</html>", false));
 westBox.add (Box.createGlue());
 incrLabel = new JTIMLabel ("<html>I N C R</html>", false);
 westBox.add (incrLabel);
 westBox.add (Box.createGlue());
 decrLabel = new JTIMLabel ("<html>D E C R</html>", false);
 westBox.add (decrLabel);
 westBox.add (Box.createGlue());
 messagePanel.add (westBox, BorderLayout.WEST);
 // Create CENTER Box to display message bodies
 GriddedPanel centerBox = new GriddedPanel ();
 centerBox.setBackground (Color.black);
 messagePanel.add (centerBox, BorderLayout.CENTER);
 if (msgType == CAS)
 new CASDisplay (msg, centerBox, incrLabel, decrLabel);
 else if (msgType == OSR)
 new OSRDisplay (msg, centerBox);
 else if (msgType == FREE_TEXT)
 new FreeTextDisplay (msg, centerBox);
 private void createButtonPanel ()
 // build the button panel
 buttonPanel = new JPanel ();
 buttonPanel.setLayout (new BoxLayout (buttonPanel, BoxLayout.X_AXIS));
 buttonPanel.setBorder (new LineBorder (Color.BLACK));
 // Create and add the buttons
 buttonPanel.add (createButton ("FIRST_BUTTON"));
 buttonPanel.add (createButton ("PREV_BUTTON"));
 buttonPanel.add (createButton ("NEXT_BUTTON"));
 buttonPanel.add (createButton ("LAST_BUTTON"));
 private JButton createButton (String buttonName)
 JButton button = new JButton ();
 button.addActionListener (this);
 button.setActionCommand (buttonName);
 Image image = null;
 String tooltip = "Press to go to the ";
 if (buttonName.equals ("FIRST_BUTTON"))
 image = new ImageIcon ("firstArrowIcon.gif").getImage();
 tooltip += "First";
 else if (buttonName.equals ("PREV_BUTTON"))
 image = new ImageIcon ("previousArrowIcon.gif").getImage();
 tooltip += "Previous";
 else if (buttonName.equals ("NEXT_BUTTON"))
 image = new ImageIcon ("nextArrowIcon.gif").getImage();
 tooltip += "Next";
 else if (buttonName.equals ("LAST_BUTTON"))
 image = new ImageIcon ("lastArrowIcon.gif").getImage();
 tooltip += "Last";
 tooltip += " message in the lst";
 button.setToolTipText (tooltip);
 button.setIcon (new ImageIcon (image.getScaledInstance (36, 36, Image.SCALE_FAST)));
 return button;
 public void actionPerformed (ActionEvent e)
 if (e.getActionCommand ().equals ("FIRST_BUTTON"))
 index = 0;
 else if (e.getActionCommand ().equals ("PREV_BUTTON"))
 if (index > 0)
 index--;
 else if (e.getActionCommand ().equals ("NEXT_BUTTON"))
 if (index < numMsgs - 1)
 index++;
 else if (e.getActionCommand ().equals ("LAST_BUTTON"))
 index = numMsgs - 1;
 titledBorder.setTitle ("Message " + String.valueOf (index + 1) +
 " of " + String.valueOf (numMsgs));
 createMsgPanel ((Message) missionData.messages.elementAt (index));
 private static class MessageType
 extends EnumeratedType
 implements Serializable
 final static long serialVersionUID = 1;
 protected MessageType (int value, String desc)
 super (value, desc);
 private static MessageType FREE_TEXT =
 new MessageType (0, "Free Text");
 private static MessageType CAS =
 new MessageType (1, "Call Accounting System");
 private static MessageType OSR =
 new MessageType (2, "Occupational Survey Report");
}

That's all well and good, but I've had more times that not where
people want the entire program, not bits and pieces.Then you missed the whole point of that link.
We don't want to see bits and pieces of code. We want to see an executable program, but we want an executable program the demonstrates the incorrect behaviour without all the unnecessary code. 90% of the code you posted was not related to your problem. That is we what you do to some basic debugging and remove the parts of code that are not related to the problem so we can concentrate on the code that is related to the problem.

How to pass/share components between different JPanels/Container

Dear Friends,
I know here a lot Java Guru, I met a problem below.
How can I pass components between different JPanels??
here, ListPanelMain.java is main,
When I click a tree node in splitPane, I can see all its children on the right splitpane, but I hope they can be seen on another Panel called "ListRightPane.java"
How to do it??
Why cannot pass??
[1]. main Program:
package swing.com.test.test;
import javax.swing.JFrame;
import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import java.io.Serializable;
import swing.com.test.test.ListPanel;
import java.awt.GridLayout;
public class ListPanelMain implements java.io.Serializable{
 private JFrame frame;
 * Launch the application
 * @param args
 public static void main(String args[]) {
 try {
 ListPanelMain window = new ListPanelMain();
 window.frame.setVisible(true);
 } catch (Exception e) {
 e.printStackTrace();
 * Create the application
 public ListPanelMain() {
 initialize();
 * Initialize the contents of the frame
 private void initialize() {
 frame = new JFrame("FileTreePanelMain");
 frame.setBounds(100, 100, 900, 675);
 // FieTreePanelComm ftreecomm = new FieTreePanelComm();
 ListPanel ftree = new ListPanel("C:\\");
// ListAllFile ftree = new ListAllFile("C:\\");
 // FileTreePanelText fileTreePanelText = new FileTreePanelText(ftreecomm);
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 final JPanel panel = new JPanel();
 panel.setLayout(new GridLayout(0, 2));
 frame.getContentPane().add(panel, BorderLayout.CENTER);
 // final JSplitPane splitPane = new JSplitPane();
 // frame.getContentPane().add(splitPane, BorderLayout.CENTER);
 // splitPane.setLeftComponent(ftree);
 panel.add(ftree);
 final ListRightPanel listRightPanel = new ListRightPanel(ftree);
 //splitPane.setRightComponent(listRightPanel);
 panel.add(listRightPanel);
 frame.addWindowListener(new WindowAdapter() {
 public void windowClosing(WindowEvent e) {
 System.exit(0);
 frame.pack();
 frame.setVisible(true);
[2]. Program 2:
package swing.com.test.test;
//File System Tree
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.io.File;
import java.util.Iterator;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.JPanel;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListPanel extends JPanel implements Serializable{
protected JTree fileTree;
private FileSystemModel fileSystemModel;
private JTextArea ltextArea = new JTextArea();
protected JTextArea fileDetailsTextArea = new JTextArea();
private String str = "";
 public String getlTextArea() {
 //textArea.getText();
 return str;
 public String setlTextArea(String ta) {
 ltextArea.setText(ta);
 str = ta;
 return str;
public ListPanel(String directory) {
//super("JTree FileSystem Viewer");
 setLayout(new BorderLayout());
 final JPanel panel = new JPanel();
 panel.setLayout(new BorderLayout());
 add(panel, BorderLayout.CENTER);
fileDetailsTextArea.setEditable(false);
fileSystemModel = new FileSystemModel(new File(directory));
fileTree = new JTree(fileSystemModel);
fileTree.setEditable(true);
fileTree.addTreeSelectionListener(new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent event) {
System.out.println("1. What we save is: getlTextArea() =" + getlTextArea() );
File file = (File) fileTree.getLastSelectedPathComponent();
fileDetailsTextArea.setText(getFileDetails(file));
final ListRightPanel lrp = new ListRightPanel(this);
lrp.textArea.setText(getFileDetails(file));
setlTextArea(getFileDetails(file));
System.out.println("2. What we save is: getlTextArea() =" + getlTextArea() );
 final JSplitPane splitPane = new JSplitPane();
 panel.add(splitPane, BorderLayout.CENTER);
 final JPanel panel_1 = new JPanel();
 splitPane.setLeftComponent(panel_1);
 panel_1.add(new JScrollPane(fileTree));
 final JPanel panel_2 = new JPanel();
 splitPane.setRightComponent(panel_2);
 panel_2.add(new JScrollPane(fileDetailsTextArea));
setVisible(true);
private String getFileDetails(File file) {
if (file == null)
return "";
StringBuffer buffer = new StringBuffer();
if (file.listFiles()!=null){
 for (int i=0; i< file.listFiles().length; i++){
 buffer.append(((file.listFiles())) + "\n");
 System.out.println("List all files");
return buffer.toString();
public static void main(String args[]) {
new ListPanel("c:\\");
class FileSystemModel implements TreeModel {
private File root;
private Vector listeners = new Vector();
public FileSystemModel(File rootDirectory) {
root = rootDirectory;
public Object getRoot() {
return root;
public Object getChild(Object parent, int index) {
File directory = (File) parent;
String[] children = directory.list();
return new TreeFile(directory, children[index]);
public int getChildCount(Object parent) {
File file = (File) parent;
if (file.isDirectory()) {
String[] fileList = file.list();
if (fileList != null)
return file.list().length;
return 0;
public boolean isLeaf(Object node) {
File file = (File) node;
return file.isFile();
public int getIndexOfChild(Object parent, Object child) {
File directory = (File) parent;
File file = (File) child;
String[] children = directory.list();
for (int i = 0; i < children.length; i++) {
if (file.getName().equals(children[i])) {
return i;
return -1;
public void valueForPathChanged(TreePath path, Object value) {
File oldFile = (File) path.getLastPathComponent();
String fileParentPath = oldFile.getParent();
String newFileName = (String) value;
File targetFile = new File(fileParentPath, newFileName);
oldFile.renameTo(targetFile);
File parent = new File(fileParentPath);
int[] changedChildrenIndices = { getIndexOfChild(parent, targetFile) };
Object[] changedChildren = { targetFile };
fireTreeNodesChanged(path.getParentPath(), changedChildrenIndices, changedChildren);
private void fireTreeNodesChanged(TreePath parentPath, int[] indices, Object[] children) {
TreeModelEvent event = new TreeModelEvent(this, parentPath, indices, children);
Iterator iterator = listeners.iterator();
TreeModelListener listener = null;
while (iterator.hasNext()) {
listener = (TreeModelListener) iterator.next();
listener.treeNodesChanged(event);
public void addTreeModelListener(TreeModelListener listener) {
listeners.add(listener);
public void removeTreeModelListener(TreeModelListener listener) {
listeners.remove(listener);
private class TreeFile extends File {
public TreeFile(File parent, String child) {
super(parent, child);
public String toString() {
return getName();
[3]. Program 3:
package swing.com.test.test;
import java.awt.BorderLayout;
import java.io.File;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListRightPanel extends JPanel implements TreeSelectionListener, Serializable{
 protected JTextArea textArea;
// protected ListAllFile laf;
private String str = "";
 public String getlTextArea() {
 //textArea.getText();
 return str;
 public String setlTextArea(String ta) {
 str = ta;
 return str;
 * Create the panel
 public ListRightPanel(ListPanel laff) {
 super();
 setLayout(new BorderLayout());
 final JPanel panel = new JPanel();
 panel.setLayout(new BorderLayout());
 add(panel, BorderLayout.CENTER);
 textArea = new JTextArea();
final String st = laff.getlTextArea();
System.out.println("####################################");
System.out.println("st=" + st);
 laff.fileTree.addTreeSelectionListener(new TreeSelectionListener() {
 public void valueChanged(TreeSelectionEvent event) {
 //laff.textArea.setText(getFileDetails(file));
 textArea.setText(getlTextArea());
 System.out.println("ListRightPanel Was Invoked from ListPanel!!getlTextArea() =" + getlTextArea() );
 System.out.println("st=" + st);
 panel.add(textArea, BorderLayout.CENTER);
 public void valueChanged(TreeSelectionEvent e){};
It is runnable program, just compile and run it in Console is ok,
Regards
Sunny

Thnaks, code post again, see
[1]. package swing.com.test.test;
import javax.swing.JFrame;
import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import java.io.Serializable;
import swing.com.test.test.ListPanel;
import java.awt.GridLayout;
public class ListPanelMain implements java.io.Serializable{
 private JFrame frame;
 * Launch the application
 * @param args
 public static void main(String args[]) {
 try {
 ListPanelMain window = new ListPanelMain();
 window.frame.setVisible(true);
 } catch (Exception e) {
 e.printStackTrace();
 * Create the application
 public ListPanelMain() {
 initialize();
 * Initialize the contents of the frame
 private void initialize() {
 frame = new JFrame("FileTreePanelMain");
 frame.setBounds(100, 100, 900, 675);
 // FieTreePanelComm ftreecomm = new FieTreePanelComm();
 ListPanel ftree = new ListPanel("C:\\");
// ListAllFile ftree = new ListAllFile("C:\\");
 // FileTreePanelText fileTreePanelText = new FileTreePanelText(ftreecomm);
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 final JPanel panel = new JPanel();
 panel.setLayout(new GridLayout(0, 2));
 frame.getContentPane().add(panel, BorderLayout.CENTER);
 // final JSplitPane splitPane = new JSplitPane();
 // frame.getContentPane().add(splitPane, BorderLayout.CENTER);
 // splitPane.setLeftComponent(ftree);
 panel.add(ftree);
 final ListRightPanel listRightPanel = new ListRightPanel(ftree);
 //splitPane.setRightComponent(listRightPanel);
 panel.add(listRightPanel);
 frame.addWindowListener(new WindowAdapter() {
 public void windowClosing(WindowEvent e) {
 System.exit(0);
 frame.pack();
 frame.setVisible(true);
}[2] Program 2
package swing.com.test.test;
//File System Tree
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.io.File;
import java.util.Iterator;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.JPanel;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListPanel extends JPanel implements Serializable{
protected JTree fileTree;
private FileSystemModel fileSystemModel;
private JTextArea ltextArea = new JTextArea();
protected JTextArea fileDetailsTextArea = new JTextArea();
private String str = "";
 public String getlTextArea() {
 //textArea.getText();
 return str;
 public String setlTextArea(String ta) {
 ltextArea.setText(ta);
 str = ta;
 return str;
public ListPanel(String directory) {
 //super("JTree FileSystem Viewer");
 setLayout(new BorderLayout());
 final JPanel panel = new JPanel();
 panel.setLayout(new BorderLayout());
 add(panel, BorderLayout.CENTER);
 fileDetailsTextArea.setEditable(false);
 fileSystemModel = new FileSystemModel(new File(directory));
 fileTree = new JTree(fileSystemModel);
 fileTree.setEditable(true);
 fileTree.addTreeSelectionListener(new TreeSelectionListener() {
 public void valueChanged(TreeSelectionEvent event) {
 System.out.println("1. What we save is: getlTextArea() =" + getlTextArea() );
 File file = (File) fileTree.getLastSelectedPathComponent();
 fileDetailsTextArea.setText(getFileDetails(file));
 final ListRightPanel lrp = new ListRightPanel(this);
 lrp.textArea.setText(getFileDetails(file));
 setlTextArea(getFileDetails(file));
 System.out.println("2. What we save is: getlTextArea() =" + getlTextArea() );
 final JSplitPane splitPane = new JSplitPane();
 panel.add(splitPane, BorderLayout.CENTER);
 final JPanel panel_1 = new JPanel();
 splitPane.setLeftComponent(panel_1);
 panel_1.add(new JScrollPane(fileTree));
 final JPanel panel_2 = new JPanel();
 splitPane.setRightComponent(panel_2);
 panel_2.add(new JScrollPane(fileDetailsTextArea));
 setVisible(true);
private String getFileDetails(File file) {
 if (file == null)
 return "";
 StringBuffer buffer = new StringBuffer();
 if (file.listFiles()!=null){
 for (int i=0; i< file.listFiles().length; i++){
 buffer.append(((file.listFiles())) + "\n");
 System.out.println("List all files");
return buffer.toString();
public static void main(String args[]) {
new ListPanel("c:\\");
class FileSystemModel implements TreeModel {
private File root;
private Vector listeners = new Vector();
public FileSystemModel(File rootDirectory) {
root = rootDirectory;
public Object getRoot() {
return root;
public Object getChild(Object parent, int index) {
File directory = (File) parent;
String[] children = directory.list();
return new TreeFile(directory, children[index]);
public int getChildCount(Object parent) {
File file = (File) parent;
if (file.isDirectory()) {
String[] fileList = file.list();
if (fileList != null)
return file.list().length;
return 0;
public boolean isLeaf(Object node) {
File file = (File) node;
return file.isFile();
public int getIndexOfChild(Object parent, Object child) {
File directory = (File) parent;
File file = (File) child;
String[] children = directory.list();
for (int i = 0; i < children.length; i++) {
if (file.getName().equals(children[i])) {
return i;
return -1;
public void valueForPathChanged(TreePath path, Object value) {
File oldFile = (File) path.getLastPathComponent();
String fileParentPath = oldFile.getParent();
String newFileName = (String) value;
File targetFile = new File(fileParentPath, newFileName);
oldFile.renameTo(targetFile);
File parent = new File(fileParentPath);
int[] changedChildrenIndices = { getIndexOfChild(parent, targetFile) };
Object[] changedChildren = { targetFile };
fireTreeNodesChanged(path.getParentPath(), changedChildrenIndices, changedChildren);
private void fireTreeNodesChanged(TreePath parentPath, int[] indices, Object[] children) {
TreeModelEvent event = new TreeModelEvent(this, parentPath, indices, children);
Iterator iterator = listeners.iterator();
TreeModelListener listener = null;
while (iterator.hasNext()) {
listener = (TreeModelListener) iterator.next();
listener.treeNodesChanged(event);
public void addTreeModelListener(TreeModelListener listener) {
listeners.add(listener);
public void removeTreeModelListener(TreeModelListener listener) {
listeners.remove(listener);
private class TreeFile extends File {
public TreeFile(File parent, String child) {
super(parent, child);
public String toString() {
return getName();
[3] Program 3:
package swing.com.test.test;
import java.awt.BorderLayout;
import java.io.File;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListRightPanel extends JPanel implements TreeSelectionListener, Serializable{
 protected JTextArea textArea;
// protected ListAllFile laf;
 private String str = "";
 public String getlTextArea() {
 //textArea.getText();
 return str;
 public String setlTextArea(String ta) {
 str = ta;
 return str;
 * Create the panel
 public ListRightPanel(ListPanel laff) {
 super();
 setLayout(new BorderLayout());
 final JPanel panel = new JPanel();
 panel.setLayout(new BorderLayout());
 add(panel, BorderLayout.CENTER);
 textArea = new JTextArea();
 final String st = laff.getlTextArea();
 System.out.println("####################################");
 System.out.println("st=" + st);
 laff.fileTree.addTreeSelectionListener(new TreeSelectionListener() {
 public void valueChanged(TreeSelectionEvent event) {
 //laff.textArea.setText(getFileDetails(file));
 textArea.setText(getlTextArea());
 System.out.println("ListRightPanel Was Invoked from ListPanel!!getlTextArea() =" + getlTextArea() );
 System.out.println("st=" + st);
 panel.add(textArea, BorderLayout.CENTER);
 public void valueChanged(TreeSelectionEvent e){};
}You can try this one, thanks again
sunny

Is it possible to serialize a web dynpro component controller?

Hi,
Is it possible to serialize a web dynpro component controller and deserialize it for use?
I have one web dynpro application WDA1 for web dynpro component WDC1. And another web dynpro application WDA2 for WDC2 will be opened in a new window triggered by a button action in WDC1.
Iu2019d like to pass the object reference of WDC1 component controller to WDC2.
I first tried to use a static member of a class object but found out that even the static member is initialized and set in WDC1, itu2019s still initial when I access it in WDC2.
Then I searched the forum and found one article Passing Object ref to Webdynpro Application while calling from BSP screen .
The recommended way is to serialize the object reference and store in a DB table, later on read it out and deserialize it for use.
I tried serialization using the following code, but when itu2019s deserialized, the result is initial.
Can anyone share some ideas on this?
Serialize
data: ostream type string,
           xslt_err type ref to cx_xslt_exception.
***** serialize model class
try.
      call transformation id
      source model = wd_comp_controller
      result xml ostream.
    catch cx_xslt_exception into xslt_err.
endtry.
Deserialize
    data: istream type string,
          xslt_err type ref to cx_xslt_exception.
    istream = ls_db_sel-obj.
    data lr_wdc type REF TO ZIWCI_BY_WDC_SERIALIZE.
    try.
        call transformation id
        source xml istream
        result model = lr_wdc.
      catch cx_xslt_exception into xslt_err.
    endtry.

When you say new window, I assume you mean new browser window. This is a separate user session then. This is why the singleton pattern doesn't work. Have you considered using a new dialog window instead of a new browser window. It will be modal, but will share the same user session as the parent window.
>Why do you choose this approach over cross-component usage ? component usage is the way webdynpro components are >to be reused.
>You can also consider using Singleton OO pattern class to share data between these two components.
Neither of these approaches will work if you are using separate browser windows. Such an approach results in two separate user sessions (perhaps even running on different application servers depending upon how you have load balancing setup) and therefore can't share data using either of these approaches.
In general the idea of serialization and then writing the string ito a server cookie or other database table is sound. I don't think you should try and serialize the component controller, however. Serialization only saves and restores public attributes - not protected or private ones. So in general a class has to be designed for serialization. The component controller is much too complex and wasn't designed for such an operation.
I would suggest instead extracting the data you want to share out of component controller or context and serializing it into a custom class and passing that to the other component.

Payload not Serializable

Hi everyone,
I have implemented an asynchronous web service based on a MDB EJB. Here is the part of the web-services.xml that describes this web service :
<web-service name="MOCBean" targetNamespace="moc" uri="/MOCBean">
<components>
<jms-send-destination name="mocqueue" connection-factory="weblogic.jms.ConnectionFactory">
<jndi-name path="jms/MOCJMSQueue"/>
</jms-send-destination>
</components>
<operations>
<operation invocation-style="one-way" name="getCourbesCharge" component="mocqueue">
<params>
<param name="listeSites" class-name="java.lang.String" style="in" type="xsd:string"/>
</params>
</operation>
</operations>
</web-service>
When I call getCourbesCharge through generated classes, I get this error :
java.rmi.RemoteException: SOAP Fault:javax.xml.rpc.soap.SOAPFaultException: Exception during processing: javax.xml.rpc.JAXRPCException: Payload not Serializable. Java type is null
I don't understand since there is an input parameter named listeSites of type String and no return parameter... Do you know what's happening ?
Thanks in advance,
Mark

Well, I think I have identified the problem. When I create asynchronous web services and I pass the operation parameters which names are different from "string", "string0", "string1", etc, then "null" is unstacked from the SOAP message. I have to put the default names as parameters names to make it working... Though, it isn't necessary on synchronous web services. I think it's a Weblogic bug in client stub generation.
Mark

Rendering of Swing components

Hi,
As the renderer is used to be client independant, is it suitable to send back to the client a serialized view of Swing components (using the new XML serialization format) ?
This could allow server-side management of the client's look-and-feel and total move of the business on the server.
It might sounds weird and I'm not totally clear with myself anyway.
I think a little "deamon" should handle the requests to the server and the demarshalling step of the server response.
Any point of view on this ?
(this is just a thought of an alternative use of the renderer capabilities coz todays it only sends back HTML tags)
Ionel

Hi,
personally, I do not have too much experience with Swing.
There is a project on sourceforge that implements your idea but is not based on Java Server Faces.
It's called SwingML:
swingml.sourceforge.net

Bean containing both UI components and business logic

Hello ADF design experts, please guide me.   I came across a critical design aspects. I have main page having bunch of UI components,   Region 1, Region 2. I will have to bind the UI components of the page to a managed bean having session scope and the reason is, when control goes to region 1 or region 2, I will be doing lot of processing of business logic and then based on this, I will have to update the UI components of the page.   Same thing with region 2 also. And then, I should be able to access the information    across regions and also across other UI components etc.
I am seeing only session scoped bean will be able to help me here to get my tasks done across regions and across all other UI components of the page because I am not in a position to pass too many parameters across regions.     Now the problem is, I can not serialize this bean because as I mentioned lot of UI components are updated based on logic.
If I do not serialize the bean, I may have problem in future when application has to be deployed to cluster envt.
I do not know how should I go with my design now.   Please provide me brilliant ideas and very thankful to your guidance.
thanks

Hi ADF,
I dont want to disturb the discussion with you and Alej. I'm rising some question from your first post.
I have main page having bunch of UI components,
ok fine.
Region 1, Region 2. I will have to bind the UI components of the page to a managed bean having session scope
1.why need to do this binding for all ui components .?
2.this question lead ask another question are you using ADFBc.? if so binding layer will take care why you bind all those things.
3.why you need to put session scope.?
if you are using region. the region can only be bounded TF right, then communicate with help of pageflow. inside the bounded you may have jsff/jspx,
reason is, when control goes to region 1 or region 2, I will be doing lot of processing of business logic and then based on this, I will have to update the UI components of the page.   Same thing with region 2 also.
from the reason i have question? why you need to communicate between two region instead of using Taskflow communication.
And then, I should be able to access the information across regions and also across other UI components etc.
ok fine.
I am seeing only session scoped bean will be able to help me here to get my tasks done across regions and across all other UI components of the page because I am not in a position to pass too many parameters across regions.     Now the problem is, I can not serialize this bean because as I mentioned lot of UI components are updated based on logic.
from my point of view. your are using all powerful feature session bean, region communication to do your requirement.
mixing all those things so only you can't able to get consistent results.
I do not know how should I go with my design now.
could you please explain your usecase.
Please provide me brilliant ideas and very thankful to your guidance.
yeah sure. people will do.
thanks

Problems displaying deserialized components

I'm trying to save the state of some objects which extend JComponent and JLayeredPane, and they don't all redisplay on deserializing, although they seem to be in the containment tree.
Basically, I have a class GamePanel which extends JLayeredPane. Also classes Square and Region both of which extend JComponent and use 2D graphics for painting themselves. It seems to serialize OK (but how does one tell?). But when I deserialize, only the lower level of the GamePanel is painted. However, the higher level is populated.
Does anyone have any idea why they're not displaying? The code is below (TestKiller and its menus are generated by NetBeans - hence the slightly odd code). There are 5 menu items (I've simplified a lot from the original so it's a bit clunky): Add Region (you can only do this once in this version), Save As which serializes to a file, Restore which deserializes from a file, Exit which is obvious and Print which outputs the containment hierarchy of GamePanel to standard output.
If you want to try it out, fire up the program, do a File|Add to add a Region (see the dotted lines) and File|Print to see that there's a Square at level 2 and a Region at level 3. Then File|Save as... to save it. Quit the program.
Fire it up again and do a File|Restore and a File|Print. You'll see from the output that the Square and Region are there with identical parameters to the output before, but the Region hasn't displayed its outline.
The output's below, with java-like comments added to show what I've done:
D:>java -jar test*
Painting gridlayer
// File|Add Region
New region 1
Selecting square
Checking region 1
Painting gridlayer
Painting region 1
//File|Print
Printing Gamepanel components
com.ptoye.TestSBug1.Region[Region-1,4,4,60x60,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=,minim
umSize=,preferredSize=]
Bounds java.awt.Rectangle[x=4,y=4,width=60,height=60]
Layer 3
com.ptoye.TestSBug1.Square[Square-0:0,4,4,60x60,alignmentX=0.0,alignmentY=0.0,border=,flags=16777224,maximumSi
ze=,minimumSize=,preferredSize=]
Bounds java.awt.Rectangle[x=4,y=4,width=60,height=60]
Layer 2
\\File|Save
Saving game to bug1.ksd
D:>java -jar test*
Painting gridlayer
\\File|Restore
Restoring game bug1.ksd
Restored
\\File|Print - same as above but only Square is displayed
Printing Gamepanel components
com.ptoye.TestSBug1.Region[Region-1,4,4,60x60,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=,minim
umSize=,preferredSize=]
Bounds java.awt.Rectangle[x=4,y=4,width=60,height=60]
Layer 3
com.ptoye.TestSBug1.Square[Square-0:0,4,4,60x60,alignmentX=0.0,alignmentY=0.0,border=,flags=16777224,maximumSi
ze=,minimumSize=,preferredSize=]
Bounds java.awt.Rectangle[x=4,y=4,width=60,height=60]
Layer 2
D:>
Please someone tell me what I'm doing wrong. As a serialization newbie it's probably something simple, but no amount of validate() and pack() makes any difference.
The code's below - a bit long I'm afraid but it's difficult to cut it down much more and display the problem. The main class (TestKiller) was generated by NetBeans.
* TestKiller.java
* Created on 01 August 2006, 22:13
package com.ptoye.TestSBug1;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
* @author PToye
public class TestKiller extends javax.swing.JFrame {
private GamePanel p;
final String fileExtension="ksd";
 * Creates new form TestKiller
public TestKiller() {
 initComponents();
 p=new GamePanel();
 setContentPane(p);
 p.setOpaque(true);
 setSize(p.getPreferredSize());
 pack();
public static void showMessage(String s) {
 JOptionPane.showMessageDialog(null,s,"Error",JOptionPane.ERROR_MESSAGE);
/** This method is called from within the constructor to
 * initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is
 * always regenerated by the Form Editor.
private void initComponents() {
 jMenuBar1 = new javax.swing.JMenuBar();
 jmFile = new javax.swing.JMenu();
 jmiAddRegion = new javax.swing.JMenuItem();
 jSeparator2 = new javax.swing.JSeparator();
 jmiSaveAs = new javax.swing.JMenuItem();
 jmiRestore = new javax.swing.JMenuItem();
 jmiExit = new javax.swing.JMenuItem();
 jSeparator1 = new javax.swing.JSeparator();
 jmiPrint = new javax.swing.JMenuItem();
 FormListener formListener = new FormListener();
 setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 setTitle("Restore bug");
 jmFile.setText("File");
 jmiAddRegion.setText("Add region");
 jmiAddRegion.addActionListener(formListener);
 jmFile.add(jmiAddRegion);
 jmFile.add(jSeparator2);
 jmiSaveAs.setMnemonic('s');
 jmiSaveAs.setText("Save as...");
 jmiSaveAs.addActionListener(formListener);
 jmFile.add(jmiSaveAs);
 jmiRestore.setMnemonic('r');
 jmiRestore.setText("Restore");
 jmiRestore.addActionListener(formListener);
 jmFile.add(jmiRestore);
 jmiExit.setMnemonic('x');
 jmiExit.setText("Exit");
 jmiExit.addActionListener(formListener);
 jmFile.add(jmiExit);
 jmFile.add(jSeparator1);
 jmiPrint.setText("Print");
 jmiPrint.addActionListener(formListener);
 jmFile.add(jmiPrint);
 jMenuBar1.add(jmFile);
 setJMenuBar(jMenuBar1);
 pack();
// Code for dispatching events from components to event handlers.
private class FormListener implements java.awt.event.ActionListener {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 if (evt.getSource() == jmiSaveAs) {
 TestKiller.this.jmiSaveAsActionPerformed(evt);
 else if (evt.getSource() == jmiRestore) {
 TestKiller.this.jmiRestoreActionPerformed(evt);
 else if (evt.getSource() == jmiExit) {
 TestKiller.this.jmiExitActionPerformed(evt);
 else if (evt.getSource() == jmiPrint) {
 TestKiller.this.jmiPrintActionPerformed(evt);
 else if (evt.getSource() == jmiAddRegion) {
 TestKiller.this.jmiAddRegionActionPerformed(evt);
private void jmiAddRegionActionPerformed(java.awt.event.ActionEvent evt) {
 p.dummyAdd();
 jmiAddRegion.setEnabled(false);
private void jmiPrintActionPerformed(java.awt.event.ActionEvent evt) {
 p.print();
private void jmiSaveAsActionPerformed(java.awt.event.ActionEvent evt) {
 File f;
 ObjectOutputStream oos=null;
 JFileChooser jfc=new JFileChooser();
 jfc.setFileSelectionMode(JFileChooser.FILES_ONLY);
 jfc.setMultiSelectionEnabled(false);
 jfc.addChoosableFileFilter(jfc.getAcceptAllFileFilter());
 jfc.addChoosableFileFilter(new KDSFileFilter());
 jfc.showSaveDialog(this);
 f=jfc.getSelectedFile();
 if (f==null) {
 showMessage("Null file found");
 int i=f.getName().lastIndexOf(".");
 if (i==-1) {
 f=new File(f.getAbsolutePath()+"."+fileExtension);
 try {
 oos=new ObjectOutputStream(new FileOutputStream(f));
 } catch (FileNotFoundException ex) {
 showMessage("Cannot find file "+f.getName());
 return;
 } catch (IOException ex) {
 showMessage("Cannot open file "+f.getName());
 return;
 if (oos!=null) {
 System.out.println("Saving game to "+f.getName());
 try {
 oos.writeObject(p);
 } catch (IOException ex) {
 showMessage("Cannot write game to "+f.getName()+"\n"+ex.getMessage());
 } finally {
 try {
 oos.close();
 } catch (IOException ex) {
private void jmiExitActionPerformed(java.awt.event.ActionEvent evt) {
 System.exit(0);
private void jmiRestoreActionPerformed(java.awt.event.ActionEvent evt) {
 File f;
 ObjectInputStream ois=null;
 JFileChooser jfc=new JFileChooser();
 jfc.setFileSelectionMode(JFileChooser.FILES_ONLY);
 jfc.setMultiSelectionEnabled(false);
 jfc.addChoosableFileFilter(jfc.getAcceptAllFileFilter());
 jfc.addChoosableFileFilter( new KDSFileFilter());
 jfc.showOpenDialog(this);
 f=jfc.getSelectedFile();
 if (f!=null) {
 try {
 ois=new ObjectInputStream(new FileInputStream(f));
 } catch (FileNotFoundException ex) {
 showMessage("Cannot find file "+f.getName());
 return;
 } catch (IOException ex) {
 showMessage("Cannot open file "+f.getName());
 return;
 if (ois!=null) {
 System.out.println("Restoring game "+f.getName());
 try {
 p=(GamePanel) ois.readObject();
 } catch (IOException ex) {
 showMessage("Cannot read game from file "+f.getName());
 } catch (ClassNotFoundException ex) {
 showMessage("Cannot restore game - wrong object type");
 try {
 ois.close();
 } catch (IOException ex) {
 pack();
 p.validate();
 p.repaint();
 System.out.println("Restored");
private class KDSFileFilter extends javax.swing.filechooser.FileFilter {
 public boolean accept(File f) {
 if (f.isDirectory()) {
 return true;
 String ext = null;
 String s = f.getName();
 int i = s.lastIndexOf('.');
 if (i > 0 && i < s.length() - 1) {
 ext = s.substring(i+1).toLowerCase();
 return (ext==null || ext.equalsIgnoreCase(fileExtension));
 public String getDescription() {
 return "Killer Su Doku games";
 * @param args the command line arguments
public static void main(String args[]) {
 java.awt.EventQueue.invokeLater(new Runnable() {
 public void run() {
 new TestKiller().setVisible(true);
// Variables declaration - do not modify
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JSeparator jSeparator1;
private javax.swing.JSeparator jSeparator2;
private javax.swing.JMenu jmFile;
private javax.swing.JMenuItem jmiAddRegion;
private javax.swing.JMenuItem jmiExit;
private javax.swing.JMenuItem jmiPrint;
private javax.swing.JMenuItem jmiRestore;
private javax.swing.JMenuItem jmiSaveAs;
// End of variables declaration
* GamePanel.java
* Created on 10 January 2007, 18:45
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package com.ptoye.TestSBug1;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;
import javax.swing.JLayeredPane;
* @author PToye
public class GamePanel extends JLayeredPane implements Serializable {
private static final int GRID_LEVEL=2;
private static final int REGIONS_LEVEL=3;
private static final int THICK_WIDTH=4;
private static final int THIN_WIDTH=1;
static final int SQUARE_SIZE=60;
private static final int SQUARES=1; // test size
static final int BIGSQUARES=SQUARES*SQUARES;
static final int TotalSize=(SQUARES+1)*THICK_WIDTH+SQUARES*(SQUARES-1)*THIN_WIDTH+
 BIGSQUARES*SQUARE_SIZE;
public final Color NORMAL_BACK_COLOUR=Color.WHITE;
public final Color SELECTED_BACK_COLOUR=Color.PINK;
int coordArray; // used to be an array of start coords of each square
private Region newRegion;
private int regionId=1;
private Square squareArray; // used to be an array
private Region regions; // used to be a set
/** Creates a new instance of GamePanel */
public GamePanel() {
 super();
 regions=null;
 makeGridLayer(); //adds the white square
 setPreferredSize(new Dimension(TotalSize,TotalSize));
 setVisible(true);
 newRegion=null;
 setFocusable(true);
public void dummyAdd() {
 setupRegion(squareArray);
 if (newRegion.checkNewRegion(1)) {
 addRegion(newRegion);
public void addRegion(Region r) {
 if (regions==null) {
 regions=r;
 add(r,new Integer(REGIONS_LEVEL));
 r.repaint();
void print() {
 Component[] cList=getComponents();
 System.out.println("Printing Gamepanel components");
 for (int i = 0; i < cList.length; i++) {
 Component c=cList;
System.out.println(c.toString());
System.out.println(" Bounds "+c.getBounds());
System.out.println(" Layer "+getLayer(c));
if (c instanceof Container) {
printContainer((Container)c," ");
void printContainer(Container c, String preString) {
Component[] cList1=c.getComponents();
for (int i = 0; i < cList1.length; i++) {
Component comp=cList1[i];
System.out.println(preString+comp.toString());
System.out.println(preString+" Bounds "+comp.getBounds());
if (comp instanceof Container) {
printContainer((Container)comp,preString+" ");
private void setupRegion(Square s) {
if (newRegion==null) {
newRegion=new Region(regionId++,this);
Region r=s.getRegion();
if (r==null) {
newRegion.addSquare(s);
selectSquare(s);
s.setRegion(newRegion);
} else {
System.exit(1); // should not happen
private void makeGridLayer() {
int currentXCoord;
int currentYCoord;
int arrayIndex=0;
Square sq;
currentXCoord=THICK_WIDTH;
currentYCoord=THICK_WIDTH;
coordArray=currentYCoord;
sq=new Square(0,0, NORMAL_BACK_COLOUR,this);
add(sq,new Integer(GRID_LEVEL));
squareArray=sq;
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2=(Graphics2D) g;
System.out.println("Painting gridlayer");
g2.setBackground(Color.BLACK);
g2.setColor(Color.BLACK);
g2.fillRect(0,0,TotalSize,TotalSize);
void selectSquare(Square s) {
System.out.println("Selecting square");
s.setBackColour(SELECTED_BACK_COLOUR);
* Square.java
* Created on 28 December 2006, 15:53
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package com.ptoye.TestSBug1;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.io.Serializable;
import javax.swing.JComponent;
* @author PToye
class Square extends JComponent implements Serializable {
* X index in grid
private int xIndex;
* Y index in grid
private int yIndex;
* The square's parent grid
private GamePanel parent;
* Region it belongs to (or null if none)
private Region region;
* The background colour
private Color backColour;
private boolean marked;
// public Square() {
// System.out.println("New Square - null constructor");
// addMouseListener(parent);
* Create a new square
public Square(int x, int y, Color bcol, GamePanel parent) {
this.parent=parent;
xIndex=x;
yIndex=y;
backColour=bcol;
region=null;
setName("Square-"+x+":"+y);
setBounds(parent.coordArray,parent.coordArray,
GamePanel.SQUARE_SIZE,GamePanel.SQUARE_SIZE);
setOpaque(true);
setVisible(true);
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2=(Graphics2D) g;
// System.out.println("Painting square "+xIndex+","+yIndex+":"+getBounds());
g2.setColor(backColour);
g2.fillRect(0,0,GamePanel.SQUARE_SIZE,GamePanel.SQUARE_SIZE);
g2.setColor(Color.BLACK);
public Dimension getPreferredSize() {
return new Dimension(GamePanel.SQUARE_SIZE,GamePanel.SQUARE_SIZE);
public void setBackColour(Color backColour) {
this.backColour = backColour;
repaint(0,0,GamePanel.SQUARE_SIZE,GamePanel.SQUARE_SIZE);
public Region getRegion() {
return region;
public void setRegion(Region region) {
this.region = region;
* Region.java
* Created on 28 December 2006, 15:59
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package com.ptoye.TestSBug1;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.GeneralPath;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import javax.swing.JComponent;
* @author PToye
* Class representing a region whose total sum is known
public class Region extends JComponent implements Serializable {
private static final float BORDER_WIDTH=1f;
private static final float DASH_LENGTH=4f;
private static final float[] dashes={DASH_LENGTH,DASH_LENGTH};
private static final BasicStroke borderStroke=
new BasicStroke(BORDER_WIDTH,BasicStroke.CAP_BUTT,BasicStroke.JOIN_MITER,
1f,dashes,0);
private static final int borderInset=3;
private GamePanel parent;
* The sum as given
private int total;
private String totalString;
private int id;
* The squares constituting the region
private Square contents; // the square in the region
private Square leadSquare; // top left-hand square
private int leadXCoord,leadYCoord; // X, Y coords of lead square wrt border
private GeneralPath border=null;
public Region(int id, GamePanel parent) {
super();
this.id=id;
this.parent=parent;
setName("Region-"+id);
contents=null;
border=new GeneralPath();
System.out.println("New region "+id);
public void addSquare(Square s) {
if (contents!=null) {
contents=s;
public boolean checkNewRegion(int tot) {
System.out.println("Checking region "+id);
border.moveTo(borderInset,borderInset);
border.lineTo(GamePanel.SQUARE_SIZE-borderInset,borderInset);
border.lineTo(GamePanel.SQUARE_SIZE-borderInset,GamePanel.SQUARE_SIZE-borderInset);
border.lineTo(borderInset,GamePanel.SQUARE_SIZE-borderInset);
border.lineTo(borderInset,borderInset);
setBounds(parent.coordArray,parent.coordArray,GamePanel.SQUARE_SIZE,GamePanel.SQUARE_SIZE);
repaint();
return true;
public void paintComponent(Graphics g) {
int newX, newY;
System.out.println("Painting region "+id);
super.paintComponent(g);
Graphics2D g2=(Graphics2D) g;
g2.setColor(Color.BLACK);
g2.setStroke(borderStroke);
g2.draw(border);

OK, I asked the FTE team and got this reply: "Lucida Grande is CTS's fallback font for Thai. This font on OS 10.7 and 10.6 are not supporting Thai anymore. The version on 10.5 was supporting it." This means that it's our bug that we keep using Lucida Grande as fallback font even Apple dropped support Thai script with that font after 10.6. Unfortunately this bug was deferred from current development release (11.2) because of time constraint. If this support is critical for your business, can you open a bug in our public bugbase and ask as many vote as possible? In this way I may be able to convince internal team to fix this bug in next release.
Thank you for your feedback!
Hitomi

Save GUI components in a XML format

I am looking for a technoology that can help to create a my own file format using java. That mean currently im working with implementing a mind mapping tool (like mindjet) which will help to do basic mind mapping actions like add, edit, delete topics.
But I have faced for a ig problem when im saving a created map. because it should save as a new file format and should be able to re-open for editing.
What I planned is to retrive the GUI component's(elements of the map) properties from the map and write those values to the XML file(using XML DOM or SAX). Then read those saved values and create the GUI components under retrieved data.
what I want to know is that. Is my approach is correct? or is there any better solution for this matter?
please clarify me and I would really appreciate your help?
Regards
Lakshitha Ranasinghe

You presumably have some state, in memory, that you want to persist. From your post, though I must confess that the terms you use are not really clear in terms of what type of data you actually want to say, my guess is that you have some graph of objects in memory that you have parsed that you want to serialize and persist and then later deserialize and restore for reuse in a subsequent execution of your program.
If yes, then your goal is really simple: how do I save the state of my application and then restore it?
Go to the filesystem: store as a properties file (key-value pairs), Java's default serialization, XML or a totally custom format
Go do the database: map your object to a proper database table and column (via JDBC or an O/R mapper ala Hibernate), or store what you would have stored in the filesystem in a databaseXML is a valid option. So is a simple properties file. It depends on your requirements. If you are reading from and writing to a Java application, and frequent versioning is not an issue, then Java's default serialization could be a possibility. Going to the database would be the 'enterprise' solution, but requires testing and the successful functioning and communication between two technologies and machines. It depends on your requirements.
- Saish

UIComponent and serializable errors

Puzzling problem, but maybe someone else has had similar....I had a blank page dynamicly populated with a set of checkboxs, textfields etc according to db parameters, and to access the entered values after user submission, i found i had to bundle the components in a UIComponent array which I store in and retrieve from the sessionbean. All worked nicely until porting the project to netbeans viisual web pack, where I now get tomcat errors like
"WARNING: Cannot serialize session attribute SessionBean1 for session 9C737592533A3825C75AA0D604669925
java.io.NotSerializableException: com.sun.rave.web.ui.component.TextField"
All that changed would be library jars I'm guessing. Can anyone shine a light on why it did work, but won't work....and where do I go from here, thanks

Yeah, but they say its normal, they said: "since its a new technology (processor type I guess), theyre still coming up with updates to fix program compatibility and instability issues and just overall glitches" and I told em that it wasnt normal, and they said to go home and bring it back in and if im experiencing problems again to bring it in again. Well Ive tried to get an appointment, but theyre booked for the next two weeks. So Im stuck with a pretty big paperweight. So now Im stuck using my old computer:
I hate this thing with such a fiery passion.

Serialization vs xmlencoder bean

Hi,
I would like to be able to save/load a DefaultTreeModel object from file.
However the Java 5 api contains this warning for all Swing components.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.
So is XMLEncoder the only longterm option for saving Swing objects?
Also do the objects I encode have to be Java beans?
So is it recommended I use XMLEncoder for Swing objects and Java serialization other objects?
Regards,
Nikolas.

A look into the API docs for XMLEncoder will give you a sample example of how to use it.
http://java.sun.com/j2se/1.4.2/docs/api/java/beans/XMLEncoder.html

Restriction on memory scope for UI components binding

Hello
I'm using JDeveloper 11g 10.1.1.3
I found in the Fusion Developer's Guide for Oracle ADF (14 Getting Started with ADF Task Flows) next thing:

Restrict the scope of the managed bean that you reference through a UI component's binding attribute to backingBean or request scope. Instances of UI components cannot be serialized. Objects in scopes other than backingBean and request are expected to be serializable. For this reason, you should not bind UI components to managed beans that have a scope other than backingBean or request. Note that JDeveloper defaults the binding attribute for UI components and region fragments to use the backingBean scope.

By now I often have binded UI components to the managed beans with pageFlowScope or viewScope, but I have not got problem with that.
So, question is: what is the case that managedBean with view or pageFlow (even or session) memory scope will be needed to be serialized?
When could I get the problems with that?
Anatolii

For more details you may have a look at section 20.4.3 here:
http://download.oracle.com/docs/cd/E17904_01/web.1111/b31974/web_getstarted.htm#CACCFIII
http://download.oracle.com/docs/cd/E17904_01/web.1111/b31973/gs_jdev.htm#ADFUI11666
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UI components serialization

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