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From "Håkon Sagehaug" <hsageh...@gmail.com>
Subject Problems compiling bpel process with forEach loop
Date Thu, 12 Jun 2008 11:47:52 GMT
Hi

I'm using ode and the eclipse plugin for creating a bpel process. My goal is
to iterate, with a forEach loop, over the returned elements I get from an
invoke activity.
The xml message looks something like this

<GetAllMatricesResponse xmlns="http://bccs.uib.no/Jaspar">
    <Matrix xmlns="http://bccs.uib.no/Jaspar" Format="PFM" ID="MA0001">
      ....
</Matrix >
</GetAllMatricesResponse>

The GetAllMatricesResponse element can contain many Matrix elemets. My
forEach looks like this

<bpws:forEach counterName="Counter" name="ForEach" parallel="no">


<bpws:finalCounterValue><![CDATA[count($output.parameters/ns0:Matrix)]]></bpws:finalCounterValue>
            <bpws:completionCondition>
                <bpws:branches><![CDATA[1$Counter ==
count($output.parameters/ns0:Matrix)]]></bpws:branches>
            </bpws:completionCondition>
            <bpws:scope>
                <bpws:invoke name="Invoke1"/>
            </bpws:scope>
        </bpws:forEach>

But when I compile it with bpelc I get these errors

WARN - 2008-06-12 13:44:19,498 -
<org.apache.ode.bpel.compiler.bom.BpelObjectFactory> Unrecognized element in
BPEL dom: {
http://docs.oasis-open.org/wsbpel/2.0/process/executable}completionCondition
java org.apache.ode.tools.bpelc.cline.BpelC: null
java.lang.NullPointerException
        at
org.apache.ode.bpel.compiler.BpelCompiler.getExpressionLanguage(BpelCompiler.java:1606)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compileExpr(BpelCompiler.java:531)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compileExpr(BpelCompiler.java:521)
        at
org.apache.ode.bpel.compiler.ForEachGenerator.compile(ForEachGenerator.java:55)
        at
org.apache.ode.bpel.compiler.BpelCompiler$7.run(BpelCompiler.java:888)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compile(BpelCompiler.java:1051)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compileActivity(BpelCompiler.java:884)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compile(BpelCompiler.java:833)
        at
org.apache.ode.bpel.compiler.SequenceGenerator.compileChildren(SequenceGenerator.java:47)
        at
org.apache.ode.bpel.compiler.SequenceGenerator.compile(SequenceGenerator.java:41)
        at
org.apache.ode.bpel.compiler.BpelCompiler$7.run(BpelCompiler.java:888)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compile(BpelCompiler.java:1051)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compileActivity(BpelCompiler.java:884)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compile(BpelCompiler.java:833)
        at
org.apache.ode.bpel.compiler.BpelCompiler$5.run(BpelCompiler.java:710)
        at
org.apache.ode.bpel.compiler.BpelCompiler$8.run(BpelCompiler.java:1145)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compile(BpelCompiler.java:1051)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compileScope(BpelCompiler.java:1095)
        at
org.apache.ode.bpel.compiler.BpelCompiler.compile(BpelCompiler.java:690)
        at org.apache.ode.bpel.compiler.BpelC.compile(BpelC.java:260)
        at org.apache.ode.bpel.compiler.BpelC.compile(BpelC.java:330)
        at
org.apache.ode.tools.bpelc.BpelCompileCommand.execute(BpelCompileCommand.java:121)
        at org.apache.ode.tools.bpelc.cline.BpelC.main(BpelC.java:99)

I could not figure it out. Also is the counter and logic in the xpath
expression correct, not so experienced in this

cheers, Håkon

-- 
Håkon Sagehaug, Software Developer
Parallab, Bergen Center for Computational Science (BCCS)
UNIFOB AS (University of Bergen Research Company)

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