Why no preview in CSS of custom component

In css design view of Flex3, if I choose my custom component
to be previewed, It said There is no preview available for this
style. But it works for general compoents built in Flex 3, like
Button, Accordion, etc.
So why? and how to show preview of my custom component?
Thanks!

So how does color managment work in FCP X when I can´t calibrate my monitor or use icc profiles from a calibration software?

Similar Messages

Problem with inputText in my custom component

Hi, I have a custom dataTable component that I'm trying to get to work. It has to be a custom component because dataTable doesn't support rowspan, colspan, multi line headers, and a rendered attribute for rows. The problem is, that when I wrap the column tag inside my row tag then the method for the inputText tag never gets called in the UPDATE_MODEL_VALUES phase.
I'm starting to think that JSF doesn't support 2 levels of tags between the inputText and dataTable. I'm hoping that someone can tell me what I have wrong with my components.
Here is the JSP snippet.
<cjsf:rptTable>
     <cjsf:data id="dataTable1" value="#{allAuthUser.tableRows}" var="myTableRow1">
          <cjsf:row>
               <cjsf:col>
                    <h:inputText id="tableTestFld" value="#{myTableRow1.testFld}" size="5" maxlength="5"/>
               </cjsf:col>
          </cjsf:row>
     </cjsf:data>
</cjsf:rptTable>Here is what it renders. It looks to me like everything renders fine. So I'm guessing that there is something in a component that is causing JSF during the life cycle to not be able to process correctly.
<table>
     <tbody>
          <tr>
               <td><input id="tblmaintForm:body:dataTable1_0:tableTestFld" name="tblmaintForm:body:dataTable1_0:tableTestFld" type="text" value="" maxlength="5" size="5"/></td>
          </tr>
          <tr>
               <td><input id="tblmaintForm:body:dataTable1_1:tableTestFld" name="tblmaintForm:body:dataTable1_1:tableTestFld" type="text" value="" maxlength="5" size="5"/></td>
          </tr>
          <tr>
               <td><input id="tblmaintForm:body:dataTable1_2:tableTestFld" name="tblmaintForm:body:dataTable1_2:tableTestFld" type="text" value="" maxlength="5" size="5"/></td>
          </tr>
     </tbody>
</table>Note: If I leave off the row tag it renders the same way except of course the <tr> and </tr> tags are missing. If I do this, then the backing method for the inputText tag is called and everything works fine. Why doesn't it work with the row tag in place?
Here are the components:
public class UIRptTable extends UIComponentBase {
     public UIRptTable() {
          setRendererType("tblmaint.rptTableRenderer");
     public String getFamily() {
          return "javax.faces.Output";
public class UIRptTableData extends HtmlDataTable {
     public UIRptTableData() {
          setRendererType("tblmaint.rptTableDataRenderer");
     public String getFamily() {
          return "javax.faces.Data";
public class UIRptTableRow extends UIOutput {
     public UIRptTableRow() {
          setRendererType("tblmaint.rptTableRowRenderer");
     public String getFamily() {
          return "javax.faces.Output";
public class UIRptTableCol extends UIColumn {
     public UIRptTableCol() {
          setRendererType("tblmaint.rptTableColRenderer");
     public String getFamily() {
          return "javax.faces.Column";
}Here is part of the faces-config file in case you need it.

<component>
     <component-type>tblmaint.rptTable</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTable</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableData</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableData</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableRow</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableRow</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableCol</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableCol</component-class>
</component>

<render-kit>
     <renderer>
          <component-family>javax.faces.Output</component-family>
          <renderer-type>tblmaint.rptTableRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Data</component-family>
          <renderer-type>tblmaint.rptTableDataRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableDataRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Output</component-family>
          <renderer-type>tblmaint.rptTableRowRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableRowRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Column</component-family>
          <renderer-type>tblmaint.rptTableColRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableColRenderer</renderer-class>
     </renderer>
</render-kit>I sure hope that someone can help me out. Please let me know if you need any additional information.
Thanks,
Ray

Hi, Ray!
1) I was trying to put a button in the column header (for sorting) and I couldn't get that to work. That involved the >colhdr tag. I got that to work but I don't remember the fix. I'll look it up and reply back with that when I can.Dealing the first part of your trouble, you need NOT a custom component.
I have looked through the implementation of RepeaterRenderer, as you advised me, and found that the multi-header possibility is included in the implementation of dataTable control.
The code below is the part of source of repeater.jsp with only change:
<d:data_repeater>  <h:dataTable>
And it works fine.
<h:dataTable id="table"
binding="#{RepeaterBean.data}"
     rows="5"
value="#{RepeaterBean.customers}"
var="customer">
<f:facet name="header">
<h:outputText value="Customer List"/>               <!� First Header row -- >
</f:facet>
<h:column>
<%-- Visible checkbox for selection --%>
<h:selectBooleanCheckbox
id="checked"
binding="#{RepeaterBean.checked}"/>
<%-- Invisible checkbox for "created" flag --%>
<h:selectBooleanCheckbox
id="created"
binding="#{RepeaterBean.created}"
rendered="false"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Account Id"/>               <!�Second Header row -- >
</f:facet>
<h:inputText id="accountId"
binding="#{RepeaterBean.accountId}"
required="true"
size="6"
value="#{customer.accountId}">
</h:inputText>
<h:message for="accountId"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Customer Name"/>               <!�Second Header row -- >
</f:facet>
<h:inputText id="name"
required="true"
size="50"
value="#{customer.name}">
</h:inputText>
<h:message for="name"/>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Symbol"/>
</f:facet>
<h:inputText id="symbol"
required="true"
size="6"
value="#{customer.symbol}">
<f:validateLength
maximum="6"
minimum="2"/>
</h:inputText>
<h:message for="symbol"/>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Total Sales"/>
</f:facet>
<h:outputText id="totalSales"
value="#{customer.totalSales}">
<f:convertNumber
type="currency"/>
</h:outputText>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Commands"/>
</f:facet>
<h:commandButton id="press"
action="#{RepeaterBean.press}"
immediate="true"
value="#{RepeaterBean.pressLabel}"
type="SUBMIT"/>
<h:commandLink id="click"
action="#{RepeaterBean.click}"
immediate="true">
<h:outputText
value="Click"/>
</h:commandLink>
</h:column>
</h:dataTable>
You may have a look at HTML source to prove that dataTable is already what you need:
<table id="myform:table">
<thead>
<tr><th colspan="6" scope="colgroup">Customer List</th></tr>
<tr>
<th scope="col"></th>
<th scope="col">Account Id</th>
<th scope="col">Customer Name</th>
<th scope="col">Symbol</th>
<th scope="col">Total Sales</th>
<th scope="col">Commands</th>
</tr>
</thead>
<tbody>
2.) The second trouble is still unsettled as previously. Right now I have different task at my job, and I can�t continue investigation of this problem.
But when you find smth., please let me know. I�ll be very grateful.
Regards,
Oleksa Stelmakh

Unable to Edit the View in Custom Component

Hi Experts,
Please help me to resolve this issue !
I am unable to lock the BOL Entity in my custom component using BTAdminH. I have written the below code in the Edit event Handler for Edit Button. The lr_entity->lock( ) condition statement is getting false and it is skipping the "set_view_editable( me )." code statement. Why??
This is code excerpt that I have taken from edit button of the BP_HEAD/AccountViewSet and altered to my component/View
DATA: lr_entity     TYPE REF TO cl_crm_bol_entity,
        lr_controller TYPE REF TO cl_ZVKH8_bspwdcomponent_impl.
TRY.
      lr_controller ?= me->comp_controller.
      lr_entity ?= lr_controller->typed_context->btadminh->collection_wrapper->get_current( ).
IF lr_entity IS BOUND.
IF lr_entity->IS_LOCKED EQ abap_false.
    IF le_entity->IS_CHANGEABLE EQ abap_true.
       IF lr_entity->lock( ) EQ abap_true.
        me->view_group_context->set_view_editable( me ).
       ENDIF.
    ENDIF.
ENDIF.
ENDIF.
and when I directly executed the below code in the Edit event Handler for Edit Button I am receiving the dereferencing NULL value exception. Why in my custom component in many places this happening??
me->view_group_context->set_view_editable( me ).
Exception Details
CX_SY_REF_IS_INITIAL - Dereferencing of the NULL reference
Method: ZL_ZVKH8_DETAILSEF_IMPL=>EH_ONBACK
Thanks,
Bujji

Hi Summit & NishaNC,
Thanks for your responses !
As suggested, I have debugged the code for ->lock( ) method and there are exceptions raised from some methods.
Method GET_LOCK () -> Method GET_ROOT () ->Method GET_PARENT ()
At GET_ROOT( ) method i have received an exception
"Root entity BTAdminH could not be determined" and one more "Entity BTAdminH could not be locked"
Later when I have checked in MODEL Browser, I found that the BOL object "BTAdminH" for my view is an Access object and not the Root Object.
Hence, I have a question? Does the locking can be done only for ROOT Objects?
If this is TRUE then I think this is the major problem with my custom component where even the cross component navigation is also not happening and in many places I am receiving "Dereferencing NULL Value" information.
Also I have gone through some of the Threads and one information that I found from Sumit Mittal
1. An access object is an independent entity, has primary keys of its own.
2. A root object is a special access object that is at the top of the hierarchy based on business rules.
3. A dependent object's primary keys are supplied by access objects and it's lifetime is bound to them. If the parent object is destroyed, the dependent object is also destroyed.
4. Search objects are query objects useful for querying root objects
5. Search result objects - Search objects return the results in the form of a result object together with a relation pointing to the root object.
6. View objects - ?
7. Dynamic search objects - Used in advanced search, supports ranges and operators
Could you please specify in which scenarios we have to go for Access Objects and Root Objects
Thanks,
Bujji

Custom component not working properly

Hi all - I am trying to create a custom component. I have followed the suggested MVC architecture, and created the following classes:
1. SuperLineModel (the MODEL)
2. SuperLine (the actual component,e.g. the CONTROLLER)
3. BasicSuperLineUI (the UI Delegate class, e.g. the VIEW)
4. SuperLineUI (an abstract type class for my UI Delegate)
I also have a fifth class that draws a frame and panel, and then adds the custom component to the panel. In the main method of this class, I
register the UI delegate like this:
UIManager.put(BasicSuperLineUI.UI_CLASS_ID, "com.volant.mapit.view.BasicSuperLineUI");Everything compiles without any problems, but the custom component is never painted for some reason. In fact, I added a print line to the UI delegates paint method just to see if it was ever called, and it wasn't. I know I'm missing something here, and it's probably something small. I'm hoping some of you Swing gurus can take a look at my code below and point out the problem for me.
I really appreciate any help you can give me. Thanks.
The classes are listed below:
// SuperLineModel
import javax.swing.*;
import javax.swing.event.*;
public class SuperLineModel
private double sourceXCoord = 0;
private double sourceYCoord = 0;
private double targetXCoord = 0;
private double targetYCoord = 0;
private EventListenerList listenerList = new EventListenerList();
public SuperLineModel()
public SuperLineModel(double sourceXCoord, double sourceYCoord,
                       double targetXCoord, double targetYCoord)
    this.sourceXCoord = sourceXCoord;
    this.sourceYCoord = sourceYCoord;
    this.targetXCoord = targetXCoord;
    this.targetYCoord = targetYCoord;
public void setSourceXCoord(double x)
    this.sourceXCoord = x;
    return;
public void setSourceYCoord(double y)
    this.sourceYCoord = y;
    return;
public void setTargetXCoord(double x)
    this.targetXCoord = x;
    return;
public void setTargetYCoord(double y)
    this.targetYCoord = y;
    return;
public double getSourceXCoord()
    return this.sourceXCoord;
public double getSourceYCoord()
    return this.sourceYCoord;
public double getTargetXCoord()
    return this.targetXCoord;
public double getTargetYCoord()
    return this.targetYCoord;
public void addChangeListener(ChangeListener cl)
    listenerList.add(ChangeListener.class, cl);
public void removeChangeListener(ChangeListener cl)
    listenerList.remove(ChangeListener.class, cl);
// SuperLine
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import com.volant.mapit.view.*;
import com.volant.mapit.model.*;
public class SuperLine extends JComponent implements ChangeListener
private SuperLineModel model;
public SuperLine()
    init(new SuperLineModel());
public SuperLine(SuperLineModel model)
    init(model);
public void init(SuperLineModel model)
    setModel(model);
    setMinimumSize(new Dimension(50, 50));
    setPreferredSize(new Dimension(50,50));
    updateUI();
public void setUI(BasicSuperLineUI ui)
    super.setUI(ui);
public BasicSuperLineUI getUI()
    return (BasicSuperLineUI)ui;
public void updateUI()
    setUI((BasicSuperLineUI)UIManager.getUI(this));
    invalidate();
public String getUIClassID()
    return SuperLineUI.UI_CLASS_ID;
public SuperLineModel getModel()
    return model;
public void setModel(SuperLineModel model)
    SuperLineModel oldModel = model;
    if(oldModel != null)
      oldModel.removeChangeListener(this);
    if(model == null)
      model = new SuperLineModel();
    else
      model.addChangeListener(this);
    firePropertyChange("model", oldModel, model);
public void stateChanged(ChangeEvent evt)
    repaint();
// BasicSuperLineUI
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.plaf.*;
import com.volant.mapit.control.*;
public class BasicSuperLineUI extends SuperLineUI
public static ComponentUI createUI(JComponent c)
    return new BasicSuperLineUI();
public void installUI(JComponent c)
    SuperLine sl = (SuperLine)c;
public void uninstallUI(JComponent c)
    SuperLine sl = (SuperLine)c;
// This method is never called and I don't know why!!!
public void paint(Graphics g, JComponent c)
    super.paint(g, c);
    System.out.println("test2");
    g.fillRect(0, 0, 200, 400);
// SuperLineUI
import javax.swing.plaf.*;
import com.volant.mapit.control.*;
public abstract class SuperLineUI extends ComponentUI
public static final String UI_CLASS_ID = "SuperLineUI";

A quick glance at the code and it looks ok with the exception of the following which I don't understand what you're trying to do:
public void installUI(JComponent c) {
    SuperLine sl = (SuperLine)c;
public void uninstallUI(JComponent c) {
    SuperLine sl = (SuperLine)c;
}Here are my comments:
1) I expect Superline sl to be a global variable for use elsewhere in your program.
2) I have no idea what your uninstallUI does.
This is what I would do:
SuperLine sl;
public void installUI(JComponent c) {
    sl = (SuperLine)c;
public void uninstallUI(JComponent c) {
}Finally, I am assuming that the changelistener will trigger a repaint which in turn will call your paint method, right?
;o)
V.V.

How to use a flex custom component in an AS3 Class?

Our software team has been developing flash applications using AS3 (via the FlashDevelop IDE and the free Flex SDK). Recently, some members of the team started exploring FlexBuilder and Flex (wow... why did we wait so long?). The problem is that some folks continue to develop using pure Action Script 3 (FlashDevelop) while others are creating custom components in FlexBuilder.
How do the AS3 developers use the Flex Custom components built in FlexBuilder in their AS3 Applications?

SwapnilVJ,
Your suggestions enabled me to make progress, but I'm still having a problem. Based on you suggestion, I learned how to make a swc using Flex Builder. I successfully added the swc to the lib resource in my AS3 project (FlashDevelop). I was able to instantiate one of my new components (code hinting even picked it up from the lib).
When I run my app, my component is not visible. I can trace properties of it and the values are correct. Any thought why I might not be seeing my custom component?
package trainer.games.board.MatchThree {
import flash.display.Sprite;
public class Test extends Sprite{
private var cp:MatchingGameControlPanel; // <<< this is my swc custom component created in Flex
public function Test() {
   cp = new MatchingGameControlPanel();
   cp.visible = true;
   addChild(cp);
   trace("width: ",cp.width); // <<< works and displays valid data for the component.

Best practice question for implementing a custom component

I'm implementing a custom component which renders multiple <input type="text" .../> controls as part of it. The examples I've seen that do something similar use the ResponseWriter to generate the markup "by hand" like:
     writer.startElement("input", component);
     writer.writeAttribute("type", "text", null);
     writer.writeAttribute("id", "foo", null);
     writer.writeAttribute("name", "foo", null);
     writer.writeAttribute("value", "hello", null);
     writer.writeAttribute("size", "20", null);
     writer.endElement("input");
I don't know about anyone else, but I HATE having to write code that manufactures this stuff - seems to me that there are already classes that do this, so why not just use those? For example, the above could be replaced with:
     HtmlInputText textField = new HtmlInputText();
     textField.setId("foo");
     textField.setValue("hello");
     textField.setSize(20);
     // just to be safe, invoke both encodeBegin() and encodeEnd(),
     // though it seems like encodeEnd() actually does the work in this case,
     // but who knows if they might change it at some point
     textField.encodeBegin(context);
     textField.encodeEnd(context);
So my question is, why does everyone seem to favor the former over the latter? Why not leverage objects that already do the (encoding) work for you?

Got it!
You JSP should have this:
<h:panelGroup styleClass="jspPanel" id="jspPanel1"></h:panelGroup>
And your code page ValueChangeListener/ActionListner should have this:
          if (findComponent(getForm1(),"myOutputText") == null)
               FacesContext facesCtx = FacesContext.getCurrentInstance();
               System.out.println("Adding component");
               HtmlOutputText output =
                    (HtmlOutputText) facesCtx.getApplication().createComponent(
                         HtmlOutputText.COMPONENT_TYPE);
               output.setId("myOutputText");
               output.setValue("It works");
               getJspPanel1().getChildren().add(output);
               System.out.println("Done");
               DebugUtil.printTree(FacesContext.getCurrentInstance().getViewRoot(),System.out);
          else
               System.out.println("component already added");
I just have to figure out this IOException on the closed stream - probably has to do with [immidiate="true"].
Thanks.
[9/15/04 13:05:53:505 EDT] 6e436e43 SystemErr R java.io.IOException: Stream closed
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at java.lang.Throwable.<init>(Throwable.java)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at java.lang.Throwable.<init>(Throwable.java)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at org.apache.jasper.runtime.JspWriterImpl.ensureOpen(JspWriterImpl.java:294)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:424)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:452)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.faces.component.UIJspPanel$ChildrenListEx.add(UIJspPanel.java:114)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at pagecode.admin.Test.handleListbox1ValueChange(Test.java)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at java.lang.reflect.AccessibleObject.invokeImpl(Native Method)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at java.lang.reflect.AccessibleObject.invokeV(AccessibleObject.java:199)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at java.lang.reflect.Method.invoke(Method.java:252)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at javax.faces.component.UIInput.broadcast(UIInput.java:492)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:284)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:342)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:79)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:948)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:530)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:176)
[9/15/04 13:05:53:536 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
[9/15/04 13:05:53:552 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:201)
[9/15/04 13:05:53:552 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
[9/15/04 13:05:53:552 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
[9/15/04 13:05:53:567 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
[9/15/04 13:05:53:567 EDT] 6e436e43 SystemErr R      at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
[9/15/04 13:05:53:567 EDT] 6e436e43 SystemErr R      at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:610)
[9/15/04 13:05:53:567 EDT] 6e436e43 SystemErr R      at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:435)
[9/15/04 13:05:53:567 EDT] 6e436e43 SystemErr R      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)
[9/15/04 13:05:56:146 EDT] 6e436e43 SystemOut O Done

Nesting JSF components in a custom component

I'm creating a new JSF custom component. my component needs to include an input text and a list box. my question is : how do I add these components to my JSF component ? I want to use to JSF component to render them rather then encoding the HTML myself. how can I do it ?
I was told I need to use encodeChildren method somehow but I don't know how ?

I finally found how to set a default skin to a custom component so that users of my component will not have to set again the skinClass value of my component.
You have to create a defaults.css file at the root of your library and tell the compiler to take it into account.
The remaining problem is about the compiler. There are some steps before success and they are a bit mysterious/unclear....
I found 2 or 3 blog articles explaining those steps but the compiler arguments to use are all differents in each article...
Here are the links I found:
http://www.unitedmindset.com/jonbcampos/2010/05/12/creating-custom-spark-components/
http://www.betadesigns.co.uk/Blog/2010/05/14/default-skin-for-custom-flashbuilder-componen ts/
http://flexdevtips.blogspot.com/2009/06/default-stylesheet-in-swc-flex-library.html
Following the first article guidelines has been successful for me but I'm not marking this topic as Resolved because I'd like some answers about this whole thing...

Nest array in a custom component

Hello and thanks in advance,
I am building a custom datagrid component name custDG. It is a canvas containing the DG and some other visuals. So the actual component is based on canvas and has a DataGrid nested.
I have also build a custom class name config based on Array to hold the DG column information
AND a custom object class name col to hold each column information inside the config array class...
My question is how to make it possible for user to nest the array and columns inside the custom component when adds it to an application. For example:
<mike:custDG... >
     <mike:config>
          <mike:col.../>
          <mike:col.../>
          <mike:col.../>
     </mike:config>
</mike:custDG... >
Want to make something similar to the columns-datagridcolumn thingie but with custom classes in a custom component.
Anyone plz?
Thanks

I finally found how to set a default skin to a custom component so that users of my component will not have to set again the skinClass value of my component.
You have to create a defaults.css file at the root of your library and tell the compiler to take it into account.
The remaining problem is about the compiler. There are some steps before success and they are a bit mysterious/unclear....
I found 2 or 3 blog articles explaining those steps but the compiler arguments to use are all differents in each article...
Here are the links I found:
http://www.unitedmindset.com/jonbcampos/2010/05/12/creating-custom-spark-components/
http://www.betadesigns.co.uk/Blog/2010/05/14/default-skin-for-custom-flashbuilder-componen ts/
http://flexdevtips.blogspot.com/2009/06/default-stylesheet-in-swc-flex-library.html
Following the first article guidelines has been successful for me but I'm not marking this topic as Resolved because I'd like some answers about this whole thing...

Flex Print Job not working with custom component

Hi All,
I have to print pages with header, body and footer. So the thought process was to create a custom component fro header, footer and body. Header component is based on Box, Body is a renderer (which will have fix value of items - and will decide the number of possible pages) and footer is again based on Box.
But when i created a simple Custom component like this for header
<?xml version="1.0" encoding="utf-8"?>
<mx:VBox xmlns:fx=http://ns.adobe.com/mxml/2009
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Declarations>

</fx:Declarations>
<mx:HBox>      <mx:Label id="testLabel" text="Test Container"/>
</mx:HBox>
</mx:VBox>
Then when i try to add this to FlexPrintJob, and save it as 'xps' to see the print output, i get error message that this file is in use or damaged.
    var myPrintJob:FlexPrintJob = new FlexPrintJob();
if(!myPrintJob.start()){
      return;
var header:Header = new Header();
header.width = myPrintJob.pageWidth;
header.visible = false;
FlexGlobals.topLevelApplication.addChild(panierPrintHeader);
myPrintJob.addObject(header);
myPrintJob.send();
FlexGlobals.topLevelApplication.removeChild(panierPrintHeader);
But this does not work and i get the above mentioned exception. Now when i not use the custom component and just have a label or HBox or anything on stage before the print functionality is invoked, it works fine. And this too haapens only if you have a mxml component, i tried by creating a new Label component using actionscript and then provide the same to the printJob, which did not work either. I need help on this, else i will have to take print functionality to server side(Java) which has some business implications, the reason why i am spending time on flex for printing.
Thanks and Regards,
Jigar
Looks like custom component print is not working fine with flex or i am doing something terribly wrong.
Looking forward for help.

Is there nobody in flex community who can help on this....
Looks like a toothless class that adobe actionscript team has provided, which is not liked across much

Custom component property value handling at run time

I would like to develop simple custom component which has three properties PROP1, PROP2 & RESULT . These parameters are bound to excel sheet cells as follows..
cell A1 connected to PROP1
cell A2 connected to PROP2 and
cell A3 connected to RESULT.
In excel A1 cell has excel formula set as =IF(A2<5,10,0).
Custom component would be simple button display at runtime and on click of the same, I would like to perform following actions in sequence with N number of times.
1. First push any random number to PROP2. (which is simple task, I believe)
2. Pick new value of PROP1 which is changed due to existance of excel formula (+ using dispatchevent I could able to pass value to excel cell A2. But not able to read new value of PROP1+)
3. check new PROP1 value equal to 10. If it is 10 then count it otherwise again push new random value to PROP2.
4. Continue step 1 to 3 till N number of times. and finally
4. Push number of counts for PROP1 value 10 to RESULT parameter.
All the parameters are bindable (getter/setter with [Bindable]) in Flex component application and flex propertysheet application use binding ID to bind with cell address. with binding direction BOTH and SINGLETON
Here is flex function code which triggered at button click.
public function test002():void {
while ( N < 100)
this.PROP2 = Math.round(Math.random()*1000);
dispatchEvent(new PropertyChangeEvent(PropertyChangeEvent.PROPERTY_CHANGE, false, false, PropertyChangeEventKind.UPDATE, "PROP2", null, PROP2, this));
     if (this.PROP1 == 10)
      cnt++;
   this.RESULT = cnt;
My observations are as follows.
- new push of value to PROP2 get reflected to excel A2 when button click event is over, not at the time of while loop process execution.
- Also I observed PROP1 value never changes and it is the value which is recorded just before button click event of component at run time and remain the same till button click event is over.
- Further to this I notice as click event is over, new value of PROP2 reflected in cell A2 and change value (if it passes IF formula of excel ) in A1 as well. Next button click action takes these new A1 and A2 values in consideration and process the function "test002".
I would like to understand possibility of custom component event execution process, which can able to pass as well as read value from component parameters to underlying excel with changes due to excel formula existance. If it is not limitations (If so) what is the set of commands which can be helpful to achieve this. I appreciate if anybody explain typical event execution required in such scenarios with some actionscript code directions.
Thanks
Sandesh
Edited by: Sandesh Darne on Feb 8, 2010 11:48 AM
Edited by: Sandesh Darne on Feb 10, 2010 5:23 AM

Marton,
I have tried your solution. It works well immediately after xcelsius dashboard get displayed or preview. It does not wait click event to happen. So I modified further by adding one switch ( "switch001" in code piece shown below) to control iteration by click event. That stops running of iteration immediate after dashboard display.
In order to see iteration I have to click twice on button. First click does send "frm" parameter value to excel and excel formula operates. The excel formula result send back to component via SETTER of "frmResult" . But it stops over there. If I click second time the iteration starts for 100 times.
Also I try to export this to PDF. PDF file get generated. If I try to open PDF file it raise error.
My code is attached here.
"frm" is the parameter that sends random number to excel.
"frmResult" parameter receives excel formula output and send it back to component.
"test()" function operate on button click event and set switch001 and then calls "Calc" function for iterations.
MXML code..........
<mx:VBox>
       <mx:TextInput id="frmResultLabel" width="100" />
       <mx:Button label="test..." click="test()"/>
</mx:VBox>
Actionscript code
public var cnt:int;
          public var N:int = 0;
          public var sum:int = 0;
          public var switch001:Boolean = false;
         public function test():void {
               N = 0;
               sum = 0;
               switch001 = true;
          public function Calc():void {
          if (switch001 == true)
            if (N < 100)
                this.frm = Math.round(Math.random() * 1000);
            else if (N == 100) // return the result
                 this.frmResult = sum;
                 // Label component use to display frm and frmResult values at runtime
                 frmResultLabel.text = sum.toString() + ">" + this.frm + ">" + this.frmResult;
             N++;
          [Bindable]
          private var _frm:int;
          private var _frmChanged:Boolean = true;
          [Bindable]
          public function get frm():int
               return _frm;
          public function set frm(value:int):void
               //if (value == null) value = 0;
               if (_frm != value)
                    _frm = value;
                    _frmChanged = true;
                    invalidateProperties();
          override protected function commitProperties():void
             super.commitProperties();
             if (_frmResultChanged == true)
                    // start the cycle again by generating a new random number,
                    // or write out the result
                    Calc();

Execute UCM Service in custom component

Hi ,
I was looking for information how to execute the UCM service in custom component and found a couple of blogs regarding the same :
http://jonathanhult.com/blog/2012/06/execute-a-service-from-a-java-filter/
http://jonathanhult.com/blog/2012/10/who-created-that-site-studio-section/
http://www.redstonecontentsolutions.com/5/post/2012/05/executing-a-service-from-aservicehandler.html#sthash.X31M6ZCS.tvlE83Km.dpbs
I am new to webcenter content and couldn't understand above blog stuff properly. Queries :
1. We may need to call the UCM service in filter, Service or ServiceHandler. Is there any difference in code required to execute a service ?
2. What is the correct code to execute the UCM service ?

Ad 1) the reason why the same service might be executed slightly differently from e.g. a filter or another service/service handler is that classes Service, ServiceHandler, and the interface FilterImplementor provide slightly different attributes. Note that you may also execute a service from iDocScript (via the executeService command - see http://docs.oracle.com/cd/E23943_01/doc.1111/e10726/c08_config_ref.htm#i1078100)
Ad 2) There is no 'correct' or 'incorrect' way/ Simply, from a filter you will do it this way, and from a service that way. I think you should ask, what is the correct way to implement my custom service - should it be a filter? Or rather a service handler? Will I need Java, or is iDocScript enough? Unfortunately, you have not shared anything about what your component should do.

FXML loading custom component scene slow

All we are creating a custom component to place into a TilePane each time a user clicks a button like so
FXMLLoader loader = new FXMLLoader(resource.getURL());
Pane panel = (Pane)loader.load();
Scene scene = panel.getScene();
When we get panel.getScene() it is empty. So we created a new scene and then added that node to the tilePane. The only issue is, it is very slow and takes forever to appear on the tilePane. Is this the correct way of doing it?

Why do you need a new Scene? Surely the TilePane is already shown in a scene; you can just do
tilePane.getChildren().add(panel);
Maybe I am misunderstanding the question though.

Custom component problem

I wrote a custom component:
Here is the code for the UIComponent:
package customcomponents;
import javax.faces.component.*;
import javax.faces.context.*;
import java.util.Vector;
import jsf.*;
public class UIEventsTable extends UIComponentBase {
     public String getFamily() {
          return "EventsTable";
     public void encodeEnd( FacesContext context ) throws java.io.IOException {
          Vector<Event> events = (Vector<Event>) this.getAttributes().get("events");
          ResponseWriter writer = context.getResponseWriter();
          writer.startElement("table" , this );
          for( int i = 0 ; i < events.size() ; ++i ) {
               writer.startElement("tr",this);
                    writer.startElement("td",this);
                         writer.write( events.elementAt(i).getEvent_description() );
                    writer.endElement("td");
               writer.endElement("tr");
          writer.endElement("table");
}This is the tag class
package customcomponents;
import javax.faces.webapp.*;
import javax.faces.component.*;
import java.util.*;
import jsf.*;
public class EventsTableTag extends UIComponentTag {
     Vector<Event> events = null;
     public String getRendererType() {
          return null;
     public String getComponentType() {
          return "EventsTable";
     public void release() {
          super.release();
          events = null;
     protected void setProperties( UIComponent component ){
          super.setProperties( component );
          if( events != null )
               component.getAttributes().put( "events" , events );
     public Vector<Event> getEvents() {
          return events;
     public void setEvents(Vector<Event> events) {
          this.events = events;
}Taglib descriptor:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
     <tlib-version>1.0</tlib-version>
    <jsp-version>1.2</jsp-version>
    <short-name>d</short-name>
     <uri>http://eventsTable.com/</uri>
    <tag>
         <name>EventsTable</name>
           <tag-class>customcomponents.EventsTableTag</tag-class>
           <body-content>JSP</body-content>
         <attribute>
              <name>events</name>
         </attribute>
         <attribute>
              <name>id</name>
         </attribute>
         <attribute>
               <name>rendered</name>
          </attribute>
          <attribute>
               <name>binding</name>
          </attribute>
    </tag>
</taglib>And finally how I invoke the tag
<d:EventsTable events="#{location.events}" />
...Now location.events is a java.util.Vector with the events. But when I use this tag I get following error message:
Servlet.service() for servlet Faces Servlet threw exception
org.apache.jasper.JasperException: Unable to convert string "#{location.events}" to class "java.util.Vector" for attribute "events": Property Editor not registered with the PropertyEditorManagerI do not understand why this doesn't work. Because in a "h:dataTable" I can tell the component to use an array as an input. Even more I don't know what a PropertyEditorManager is.
So how can I pass the vector object to this custom component?

I have tried with tomcat-6.0.14 and RI 1.2_06-b02-FCS
<?xml version="1.0" encoding="UTF-8"?>
<taglib xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
   http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"
   version="2.1">
   <tlib-version>1.1</tlib-version>
    <short-name>d</short-name>
     <uri>http://eventsTable.com/</uri>
    <tag>
         <name>EventsTable</name>
           <tag-class>customcomponents.EventsTableTag</tag-class>
     <attribute>
           <name>events</name>
         <deferred-value>
            <type>java.util.Vector</type>
         </deferred-value>
      </attribute>
    </tag>
</taglib>
package customcomponents;
import javax.el.ValueExpression;
import javax.faces.webapp.*;
import javax.faces.component.*;
public class EventsTableTag extends UIComponentELTag {
     private ValueExpression events = null;
     public String getRendererType() {
          return null;
     public String getComponentType() {
          return "EventsTable";
     public void release() {
          super.release();
          events = null;
     protected void setProperties( UIComponent component ){
          super.setProperties( component );
          component.setValueExpression("events", events);
     public void setEvents(ValueExpression events){
          this.events = events;
}

Opinion: new Package for every new custom Component?

Hi there,
I am just thinking of some possibilities to structurize my Components I made.
I wonder if it is useful/good programming to define a new package for each new custom Component?
So if I define a new MyComponent class extending JFrame should I make a new package:
"mycomponent"
containing these subfolders:
"view"
"model"
"controler"
subfolging "controler" in:
"listeners"
"adapters"
"events"
Is there any sense to do so? I think this would be the best way to structurize one's components.
But if you do, you have to include millions of packages if you want to use one of these components :(.
Please post, what you think.
Thank you
Sincerely
Karlheinz Toni

nope ;). I would most certainly not want to put every file in a single directory.
But I like sturctured things. If things belong to each other, it should be visible at once, that they have something to to with each other. And the best method I can figure you is putting them in one package.
The subpackages should be created, because of the model, that is used for all swing componentd (UI-delegete, MVC...) so that each structural component is where it belongs to.
I don't like it if tere are 100 events one object could possibly create and you don't know the events from the component (of course you can guess by the name Event :)), but if they are in the same package, you would have to scroll a long way to get the thing you want (either m, v or c).
So this is why I would do it ;).
Anyway: do includes make the program run slower (I have read many threads about it, but there are way to many opinions, so I would be grateful if you post your opinions here, thx ;).
Thanks for your answer,
Sincerely
Karlheinz Toni
p.s.: why wouldn't you put them in a seperate directory (just overkill?), would you use classes that are structured like this if you are looking for a implementation of something and find it in this structure?

Best practices for adding components in a composite custom component

Hello,
I am developing a custom, composite JSF component need to dynamically add child components in my renderer class. I've noticed that people add components to a custom component in many different ways. I'd like to follow JSF best practices when developing this component - of the following approaches, which would you recommend? Or is there yet another approach I should be using?
1) in the encodeBegin method of my renderer class, create a new component, add it to the component tree, and let the page life cycle take care of the rendering:
HtmlDataList dimensionStateGroupDataList = (HtmlDataList) app.createComponent( HtmlDataList.COMPONENT_TYPE );
//set properties on dimensionStateGroupDataList
component.getChildren().add(dimensionStateGroupDataList);
2) in either the encodeBegin or encodeEnd method, create a component and encode it:
HtmlDataList dimensionStateGroupDataList = (HtmlDataList) app.createComponent( HtmlDataList.COMPONENT_TYPE );
//set properties on dimensionStateGroupDataList
dimensionStateGroupDataList.encodeBegin();
dimensionStateGroupDataList.encodeEnd();
Both of these methods are functional, and I prefer the first (why encode children if you don't have to?), but I am interested in other people's take on how this should be done.
Thanks for your help.
-Christopher

My bad, sorry, wasnt concentrating, Im afraid I have no experience with portlets, but I would have thought that you can mimic the outputLinkEx in you renderer by encoding your own links?
If you were to bind a backing bean variable to an outputLinkEx what would it be? Not understanding portlets, or knowing what an outputLinkEx is may be hindering me, but you should be able to create an instance of it in code like (this example uses HtmlOutputLink, you would need to know which component to use):
HtmlOutputLink hol = new HtmlOutputLink();
hol.set....Then set any attributes on it, and explicitly call its encodeStart, encodeEnd functions. Is that way off the mark.

Why no preview in CSS of custom component

Similar Messages

Maybe you are looking for