Problem with tableview

Hi all, we're development a BSP that display a table with 2 fields, Mat. Number and visible, the "visible" field is a char1 type.
We want use htmlb:tableview to display this table, but the field visible must appear like a button without text. If we push that button, the value of field must be updated.
we want to know if the following code is correct:
<htmlb:tableView
 id = "ofer"
 headerText = "Ofert"
 headerVisible = "true"
 design = "alternating"
 visibleRowCount = "5"
 fillUpEmptyRows = "true"
 table = "<I_exit>" >
 <htmlb:tableViewColumns>
 <htmlb:tableViewColumn
 columnName = "EMATN"
 width = "100"
 title = "Cod. Mat." />
 <htmlb:tableViewColumn
 columnName = "VISIBLE"
 width = "30"
 edit = "true"
 type = "button"
 title = "Visible" />
 </htmlb:tableViewColumns>
</htmlb:tableView>
we also think that is posible work with the iterator of the table. Oninitialitation event look for value of field and display an image. And handle the onclickevent, that will update the field if we push down.
what is the better way to do that?
Thanks.
Message was edited by: angel Jurado

Hi,
Please go through the weblog,
/people/brian.mckellar/blog/2003/10/31/bsp-programming-htmlb-tableview-iterator
and the forum,
Re: Table View Update
Regards,
Azaz Ali.

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Dear friends.
I try to adopt tableview iterator in my customer's BSP pages. So, I programmed test page.
METHOD if_htmlb_tableview_iterator~render_row_start .
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>>M_ROW_REF is "Static Attribute" and "Public" and "Type Ref To Z3TYDISP"
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your p_row_data_ref must be of type ref to data which is superior class of data types.
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hope this will solve your problem,
regards,
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CLEAR SELECTEDROWINDEXTABLE.
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Do Reward points if found helpful....
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Hi together,
I have copied from here a example of calling a bapi and fill a table via ConnectionFactory.
I have a problem with the event onNavigation. The showing of the next page or next line didn't work.
I build another with JCo that works fine. Here is my code perhaps someone have an idea:
Display.java
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TableBean myBean;
public DynPage getPage(){
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 IPortalComponentRequest request,
 String alias)
 throws Exception {
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 (IConnectorGatewayService) PortalRuntime
 .getRuntimeResources()
 .getService(
 IConnectorService.KEY);
 ConnectionProperties prop =
 new ConnectionProperties(
 request.getLocale(),
 request.getUser());
 return cgService.getConnection(alias, prop);
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 IConnectionFactory connectionFactory = null;
 IConnection client = null;
 String rfm_name = "BAPI_COMPANYCODE_GETLIST";
 try {
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 client = getConnection(request, "SAP_R3_SalesService");
 } catch (Exception e) {
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 "Couldn't establish a connection with a target system.");
 return;
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 RecordFactory recordFactory = interaction.getRecordFactory();
 MappedRecord importParams = recordFactory.createMappedRecord("CONTAINER_OF_IMPORT_PARAMS");
 IFunctionsMetaData functionsMetaData = client.getFunctionsMetaData();
 IFunction function = functionsMetaData.getFunction(rfm_name);
 if (function == null) {
 System.out.println(
 "Couldn't find " + rfm_name + " in a target system.");
 return;
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 System.out.println("Invoking... " + function.getName());
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 String columnOne = exportStructure.getString("TYPE");
 String columnTwo = exportStructure.getString("CODE");
 String columnThree = exportStructure.getString("MESSAGE");
 System.out.println(" RETURN-TYPE = " + columnOne);
 System.out.println(" RETURN-CODE = " + columnTwo);
 System.out.println(" RETURN-MESSAGE =" + columnThree);
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 IRecordSet exportTable = (IRecordSet) exportParams.get("COMPANYCODE_LIST");
 exportTable.beforeFirst(); // Moves the cursor before the first row.
 while (exportTable.next()) {
 String column_1 = exportTable.getString("COMP_CODE");
 String column_2 = exportTable.getString("COMP_NAME");
 System.out.println(" COMPANYCODE_LIST-COMP_CODE = " + column_1);
 System.out.println(" COMPANYCODE_LIST-COMP_NAME = " + column_2);
 //create the tableview mode in the bean
 myBean.createData(exportTable);
 * Closing the connection
 client.close();
 } catch (ConnectorException e) {
 //app.putValue("error", e);
 System.out.println("Caught an exception: n" + e);
 } catch (Exception e) {
 System.out.println("Caught an exception: n" + e);
The Bean:
public class TableBean implements Serializable {
 private String visibleRow = "1";
 private String selectedRows;
 private DefaultTableViewModel model;
 public TableViewModel getModel() {
 return this.model;
 public void setModel(DefaultTableViewModel model) {
 this.model = model;
 // get/setVisibleRow for tableView
 public String getVisibleRow() {
 return this.visibleRow;
 public void setVisibleRow(String visibleRow) {
 this.visibleRow = visibleRow;
 public void createData(IRecordSet table) {
 //this is your column names
 Vector column = new Vector();
 column.addElement("Company Code");
 column.addElement("Company Name");
 //all this logic is for the data part.
 Vector rVector = new Vector();
 try {
 table.beforeFirst();
 while (table.next()) {
 Vector data = new Vector();
 data.addElement(table.getString("COMP_CODE"));
 data.addElement(table.getString("COMP_NAME"));
 rVector.addElement(data);
 } catch (Exception e) {
 e.printStackTrace();
 //this is where you create the model
 this.setModel(new DefaultTableViewModel(rVector, column));
The .jsp
<%@ taglib uri="tagLib" prefix="hbj" %>
<jsp:useBean id="myBean" scope="application" class="com.test.TableBean" />
<hbj:content id="myContext" >
<hbj:page title="PageTitle">
 <hbj:form id="myFormId" >
<hbj:tableView
 id="myTableView1"
 model="myBean.model"
 design="ALTERNATING"
 headerVisible="true"
 footerVisible="true"
 fillUpEmptyRows="true"
 navigationMode="BYLINE"
 selectionMode="MULTISELECT"
 headerText="TableView example 1"
 onNavigate="onNavigation"
 visibleFirstRow="<%= myBean.getVisibleRow() %>"
 visibleRowCount="10"
 width="500 px"
 />
 </hbj:form>
</hbj:page>
</hbj:content>
Regards Thomas

Hi Thomas,
> tell a question and other people asking for the code
Yes, of course, no question. Code helps to eliminate an error, but less code - helps more...
> It's difficult to strip down the question
> and the code, in the case if I have no idea
> where the mistake is.
Exactly that's the reason why you should start this way, for you will have a good chance to find out just the portion where the mistake is in. And - as written - even if not, you've done half the work otherwise maybe three people would do in parallel trying to help you (if you find three people trying to go through that many lines of code).
I don't know if you've ever opened a bug report at SUN, for example. They just would reject such a report. And even if it may be some work to locate the problem exactly, I have sympathy for such a procedure, for this is the part the questioner can do.
In the end, it helps you to understand, maybe to solve the issue, and if you don't solve it that way, it helps you to find more people willing to attend to this problem.
> I have marked this topic as solved
> by myself some hours later
Would be great to tell others what the error has been, so that also other people are able to learn from your experience.
Best regards
Detlev

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Hello all!!
I have a problem with the keep_context attribut of one of my bsp's taht makes that the data of a tableview go duplicated in different acces.
Can i use the attribute lifetime_page to control taht every time the user exit the page all the data is erased form the memory. Anybody has an example how to use it?
Thanks i advance and sorry for my poor english
Miquel

First of all thanks for your answer.
The problem is the keep_context, perhaps with my pooro english my explanation in the first post is wrong.
When the user uses the buttons that i have created in the bsp, i force the system to make a keep_context = 0 and the all goes good. But if the user uses one button of another frame that is not controlled for my bsp and with this go back and executes again, then the data goes duplicated... is not a duplication for my internall table.
If the user with IE makes a new window the irl is passed in the new window and the data is duplicated.
I force the apllication to do a keep_context = 0 and the a free and clear of my internall tables everytime is making the selection.
I don't know what i can do.
Thanks again
Miquel

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Hi all,
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With Firefox the rendering requires only 1sec.
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greetings,
Markus

Hi,
- the IE Version is 6.0 SP2 on WinXP
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greetings,
markus

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I have a problem with the code below. I am yet to make sure that I understand the problem. Correct me if I am wrong please.
Code functionality:
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The problem as far I understand is:
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Thanks DrClap for your reply. Everything you said is right. It is not easy to make them alternate since SetState() could be called from different places where the state could be anything else but a status message. Like a GREETING message for example. It is a handshaking message but not a status message.
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B.D.

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Hi,
Having a problem with multi thread programming using client server sockets. The program works find when starting the the application in a console using java muti.java , but when using javaw multi.java the program doesnt die and have to kill it in the task manager. The program doesnt display any of my gui error messages either when the server disconnect the client. all works find in a console. any advice on this as I havent been able to understand why this is happening? any comment would be appreciated.
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troy,
Try and post a minimum code sample of your app which
does not work.
When using javaw, make sure you redirect the standard
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Graeme.Hi Graeme,
I dont understand what you mean by redirection to file? some of my code below.
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int port = 0;
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// System.out.println("Connect to nPort");
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// System.out.println("client port: "+ aClient.getLocalPort());
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InetAddress hostName;
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if(!aDiagnostic){
broadCastDia(line);
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
else{
if(line.equals("GETIPS"))
getIPs();
else{
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
} // end while
catch(Exception e){
// System.out.println("ERROR:Client Connection reset");
                         JOptionPane.showMessageDialog(null, (e.toString()),"ERROR:Client Connection reset", JOptionPane.ERROR_MESSAGE);
try{
if(aDiagnostic){
broadCastDia("Disconnect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
broadCastDia("Disconnect : client "+client.getInetAddress().toString());
     out.flush();
// close the buffers and connection;
in.close();
out.close();
client.close();
// System.out.println("out");
// remove from list
removeThreadQueue(this);
alive = false;
catch(Exception e){
// System.out.println("ERROR: Client Connection reset failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client Connection reset failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end method run
* method run - Generates io stream for communicating with the server and
* starts the client gui. Run also parses the input commands from the server.
public void run(){
boolean alive = true;
try{
// begin to life the gui
// aGuiClient = new ClientGui(hostName.getHostName(), hostPort, loginName, this);
// aGuiClient.show();
in = new BufferedReader(new InputStreamReader(hostSocket.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(hostSocket.getOutputStream()));
while (alive && hostSocket.isConnected()){
String line;
while(((line = in.readLine())!= null)){
System.out.println(line);
broadCast(line);
} // end while
} // end while
catch(Exception e){
//     System.out.println("ERRORa Connection to host reset");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort reset", JOptionPane.ERROR_MESSAGE);
try{
hostSocket.close();
     }catch(Exception a){
     JOptionPane.showMessageDialog(null, (a.toString()),"ERROR: Exception", JOptionPane.ERROR_MESSAGE);
alive = false;
System.exit(1);
} // end method run

Problem with threads and camera.

Hi everybody!
I've a problem with taking snapshot.
I would like to display a loading screen after it take snapshot ( sometimes i
have to wait few seconds after i took snapshot. Propably photo is being taken in time where i have to wait).
I was trying to use threads but i didn't succeed.
I made this code:
display.setCurrent(perform);
        new Thread(new Runnable(){
            public void run() {
                while((!performing.isShown()) && (backgroundCamera.isShown())){
                    Thread.yield();
                notifyAll();
        }).start();
        new Thread(new Runnable(){
            public void run() {
                try {
                    this.wait();
                } catch(Exception e) {
                    exceptionHandler(e);
                photo = camera.snapshot();
                display.setCurrent(displayPhoto);
        }).start();This code is sometimes showing performing screen but sometimes no.
I don't know why. In my opinion performing.isShown() method isn't working correctly.
Does anyone have some idea how to use threads here?

Hi,
I've finally managed to work this fine.
The code:
       Object o = new Object();
       display.setCurrent(perform);
        new Thread(new Runnable(){
            public void run() {
                while(!performing.isShown()){
                    Thread.yield();
               synchronized(o) {
                  o.notify();
        }).start();
        new Thread(new Runnable(){
            public void run() {
                try {
                    synchronized(o) {
                       o.wait(1);
                } catch(Exception e) {
                    exceptionHandler(e);
                photo = camera.snapshot();
                display.setCurrent(displayPhoto);
        }).start();

Problem with threads hanging

We have a problem where our application stops responding after a few days of usage. Things will for fine for a day or two, and then pretty quickly threads will start getting hung up, usually in places where they are allocating memory
We are running WebLogic 8.1 SP2 on Sun JDK 1.4.2_04 on Solaris 8 using the alternate threading model and the -server hotspot vm. We are running pretty much the same code that we had no problems with under WebLogic 6.1 SP4 and Sun JDK 1.3.1.
A thread dump usually shows that some or all of our execute threads are in the state "waiting for monitor entry" even though they are not currently waiting on any java locks. Here is a sample thread from the thread dump (we have ~120 threads so I don't want to post the full dump).
=============================================================================================
"ExecuteThread: '8' for queue: 'itgCrmWarExecutionQueue'" daemon prio=5 tid=0x005941d0 nid=0x2c waiting for monitor entry [c807f000..c807fc28]
at java.lang.String.substring(String.java:1446)
at java.lang.String.substring(String.java:1411)
at weblogic.servlet.internal.ServletRequestImpl.getRelativeUri(ServletRequestImpl.java:1872)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3492)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
=============================================================================================
String.java line 1446 for this jdk allocates a new String object, and all the other threads in this state also are creating new objects or arrays, etc.
We've done a pstack on this process when it's in this state, and the threads that are in the "waiting for monitor entry" that look like they're allocating memory are all waiting on the same lwp_mutex_lock with some allocation method that's calling into the native TwoGenerationCollectorPolicy.mem_allocate_work (see pstack output below for the same thread as in the thread dump above)
=============================================================================================
----------------- lwp# 44 / thread# 44 --------------------
ff31f364 lwp_mutex_lock (e3d70)
fee92384 __1cNObjectMonitorGenter26MpnGThread__v_ (5000, 525c, 5000, 50dc, 4800, 4af0) + 2d8
fee324d4 __1cSObjectSynchronizerKfast_enter6FnGHandle_pnJBasicLock_pnGThread__v_ (c807f65c, c807f7d4, 5941d0, 0, 35d654, fee328ec) + 68
fee32954 __1cQinstanceRefKlassZacquire_pending_list_lock6FpnJBasicLock__v_ (c807f7d4, ff170000, d4680000, 4491d4, fee1bc2c,
0) + 78
fee3167c __1cPVM_GC_OperationNdoit_prologue6M_i_ (c807f7bc, 4400, ff170000, 2d2b8, 4a6268, c807fa18) + 38
fee2e0b0 __1cIVMThreadHexecute6FpnMVM_Operation__v_ (c807f7bc, 963a8, 0, 0, 1, 0) + 90
fed2c2a4 __1cbCTwoGenerationCollectorPolicyRmem_allocate_work6MIii_pnIHeapWord__ (962c0, ff1c29ec, ff1c297c, ff131a26, 4800, 4998) + 160
fed22940 __1cNinstanceKlassRallocate_instance6MpnGThread__pnPinstanceOopDesc__ (ee009020, 5941d0, 15ca581, 3647f0, 4a6268, c807f8c8) + 180
fed34928 __1cLOptoRuntimeFnew_C6FpnMklassOopDesc_pnKJavaThread__v_ (ee009018, 5941d0, 0, 0, 0, 0) + 28
fa435a58 ???????? (ee009018, e86de, 15ca4de, 50dc, 5941d0, c807f9c8)
fb36f9a4 ???????? (0, d412ccd8, ee046c28, ff170000, 0, 0)
fad8b278 ???????? (ee046c28, d6000c90, ee046530, 8, db8e8450, c807f9e8)
fad62abc ???????? (d412ccd8, ee046530, d6000c90, ee3bfa38, 8, c807fa18)
fa4b3c38 ???????? (c807fb9c, 0, f2134700, fa415e50, 8, c807faa8)
fa40010c ???????? (c807fc28, c807fe90, a, ee9e1e20, 4, c807fb40)
fed5d48c __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (c807fe88, c807fcf0, c807fda8, 5941d0, 5941d0, c807fd00) + 27c
fee4b784 __1cJJavaCallsMcall_virtual6FpnJJavaValue_nLKlassHandle_nMsymbolHandle_4pnRJavaCallArguments_pnGThread__v_ (ff170000, 594778, c807fd9c, c807fd98, c807fda8, 5941d0) + 164
fee5e8dc __1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_nMsymbolHandle_5pnGThread__v_ (c807fe88, c807fe84, c807fe7c, c807fe74, c807fe6c, 5941d0) + 6c
fee6fc74 __1cMthread_entry6FpnKJavaThread_pnGThread__v_ (5941d0, 5941d0, 838588, 594778, 306d10, fee69254) + 128
fee6927c __1cKJavaThreadDrun6M_v_ (5941d0, 2c, 40, 0, 40, 0) + 284
fee6575c _start   (5941d0, fa1a1600, 0, 0, 0, 0) + 134
ff3758c0 lwpstart (0, 0, 0, 0, 0, 0)
=============================================================================================
Also when it's having this problem, the "VM Thread" is always using a lot of processor time. We did a couple of pstacks today while it was having this problem, and this thread was stuck in the ONMethodSweeper.sweep for over 15 minutes when we finally killed the server.
From the thread dump:
"VM Thread" prio=5 tid=0x000e2d20 nid=0x2 runnable
From the first pstack:
=============================================================================================
----------------- lwp# 2 / thread# 2 --------------------
fed40c04 __1cXvirtual_call_RelocationIparse_ic6FrpnICodeBlob_rpC5rppnHoopDesc_pi_nNRelocIterator__ (42a2f4, fa5fa46d, ffffffff, fc4ffcb8, 42a2f4, 42a324) + 124
fed46318 __1cKCompiledIC2t5B6MpnKRelocation__v_ (42a2f0, fc4ffd24, fc4ffd4c, e802, 0, 6) + 38
fed90c38 __1cHnmethodVcleanup_inline_caches6M_v_ (fa5f7f88, fa608940, 1, 0, fa400000, 6) + 1ac
fede18b4 __1cONMethodSweeperFsweep6F_v_ (2cf38, 0, ffffffff, ff1cf1fc, ff1c66e8, fede1d44) + 1b0
fede1e6c __1cUSafepointSynchronizeFbegin6F_v_ (2cf38, ff1ba138, 5000, 50dc, 5000, 525c) + 248
feef1fd4 __1cIVMThreadEloop6M_v_ (4400, 4000, 4324, 4000, 42b0, 3800) + 3d4
feef1ae4 __1cIVMThreadDrun6M_v_ (e2d20, 2, 40, 0, 40, 0) + 8c
fee6575c _start   (e2d20, ff270200, 0, 0, 0, 0) + 134
ff3758c0 lwpstart (0, 0, 0, 0, 0, 0)
=============================================================================================
Second pstack
=============================================================================================
----------------- lwp# 2 / thread# 2 --------------------
fed41180 __1cXvirtual_call_RelocationIparse_ic6FrpnICodeBlob_rpC5rppnHoopDesc_pi_nNRelocIterator__ (0, ff1b9664, ffffffff, fc4ffcb8, a6f2cc, fc4ffbd0) + 6a0
fed46318 __1cKCompiledIC2t5B6MpnKRelocation__v_ (a6f2c8, fc4ffd24, fc4ffd4c, e802, 0, 6) + 38
fed90c38 __1cHnmethodVcleanup_inline_caches6M_v_ (faded4c8, fadf2c80, 1, 0, fa400000, 6) + 1ac
fede18b4 __1cONMethodSweeperFsweep6F_v_ (2cf38, 0, ffffffff, ff1cf1fc, ff1c66e8, fede1d44) + 1b0
fede1e6c __1cUSafepointSynchronizeFbegin6F_v_ (2cf38, ff1ba138, 5000, 50dc, 5000, 525c) + 248
feef1fd4 __1cIVMThreadEloop6M_v_ (4400, 4000, 4324, 4000, 42b0, 3800) + 3d4
feef1ae4 __1cIVMThreadDrun6M_v_ (e2d20, 2, 40, 0, 40, 0) + 8c
fee6575c _start   (e2d20, ff270200, 0, 0, 0, 0) + 134
ff3758c0 lwpstart (0, 0, 0, 0, 0, 0)
=============================================================================================
Has anyone ever seen anything like this? I'm trying to figure out if this is caused by something we're doing, or something relating to our environment and jvm options. Any ideas?

Thanks for the reply - I'm testing our app with the +UseConcMarkSweepGC now in our test environment to make sure it doesn't cause any problems there. Unfortunately the only place we've had this problem is on the production server, so it's extra difficult debugging this.
We're using the following memory options:
-ms512m -mx512m -XX:NewSize=128m -XX:PermSize=192m -XX:MaxNewSize=128m -XX:MaxPermSize=192m -XX:SurvivorRatio=8and the following debugging options, as we've also been seeing OutOfMemoryErrors ( see http://forum.java.sun.com/thread.jsp?forum=37&thread=522354&tstart=45&trange=15 )
-verbosegc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGCBTW, which c++filt version and options are you using? Our Solaris boxes only seem to have the GNU version installed. I was trying to run that on some of the other stack traces and wasn't getting anywhere, and didn't know if because it was GNU version wouldn't work on something compiled with the Sun compiler.
Thanks!
--Andy

Problem with threads and ProgressMonitor

Dear Friends:
I have a little problem with a thread and a ProgressMonitor. I have a long time process that runs in a thread (the thread is in an separate class). The thread has a ProgressMonitor that works fine and shows the tasks progress.
But I need deactivate the main class(the main class is the user interface) until the thread ends.
I use something like this:
LongTask myTask=new LongTask();
myTask.start();
myTask.join();
Now, the main class waits for the task to end, but the progress monitor don`t works fine: it shows only the dialog but not the progress bar.
What's wrong?

Is the dialog a modal dialog? This can block other UI updates.
In general, you should make sure that it isn't modal, and that your workThread has a fairly low priority so that the UI can do its updating

Problem with tableview

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