Hi, All.

I have a problem with getting result of long-running process, it returns null when the process is in progress.

I've tried to make like discribes here http://docs.jboss.com/seam/2.0.1.GA/reference/en/html/conversations.html#d0e5208

I saw many topics in this forum, but didn't find any working example. Could you help me?...

Here the example i try to make it work:

I'm using Seam 2.2.0.GA.

someAction.page.xml

<?xml version="1.0" encoding="UTF-8"?>
<page xmlns="http://jboss.com/products/seam/pages"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://jboss.com/products/seam/pages http://jboss.com/products/seam/pages-2.0.xsd">

    <begin-conversation join="true"/>
</page>

someAction.xhtml:

<a4j:region>
     <h:form>
          <a4j:poll id="poll"  enabled="#{someAction.enablePolling}" reRender="consoleOutput,poll" />
     </h:form>
</a4j:region>

<h:form>
     <a4j:jsFunction name="startBuild" action="#{someAction.startBuild}" />
     <a4j:commandButton value="Start Build"  action="#{someAction.startPolling}" oncomplete="startBuild()" reRender="poll" />
     <hr/>
     <h:outputText id="consoleOutput" value="#{someAction.consoleOutput}" escape="false"/>
</h:form>

SomeAction.java

@Name("someAction")
@Scope(ScopeType.CONVERSATION)
public class SomeAction {     
     private static final int SLEEP_SEC = 1000;
     private static final int ENTIRIES = 10;

     private boolean enablePolling;
     private StringBuffer buildOutputSb = new StringBuffer();
     private String consoleOutput;    

     public boolean isEnablePolling() {
        return enablePolling;
     } 

     public void setEnablePolling(boolean enablePolling) {
        this.enablePolling = enablePolling;
     } 

     public void startPolling(){
        this.enablePolling = true;
     }

     public String getConsoleOutput() {
        return this.buildOutputSb.toString();
     }

     @Asynchronous
     public void startBuild(){
        this.buildOutputSb = new StringBuffer();

        //Stimulating the build process , which will output the log message to the buildOutputSb
        for (int i = 0; i < ENTIRIES; i++) {
            buildOutputSb.append("Output").append(i).append("<br/>");
            try {
                Thread.sleep(SLEEP_SEC);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        this.enablePolling = false;
    }
}

I would be happy for any suggestions...