Hi all,
I found another BUG-like problem in ODE 2.0 Build #87 (2009-1-8 2:25:04).
That is: the counterName variable can't be used in the position expression of
XPath as normal variables are. For example, the following BPEL piece
<forEach counterName="i" parallel="no">
<startCounterValue>1</startCounterValue>
<finalCounterValue>2</finalCounterValue>
<scope>
<assign>
<copy>
<from>$i</from>
<to>$output0.body/xsd0:field1[position()=$i]</to>
<!-- note this line -->
</copy>
</assign>
</scope>
</forEach>
will incur such ERROR in ODE:
ERROR - GeronimoLog.error(104) | Assignment Fault:
{http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure,lineNo=149,faultExplanation={http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure:
No results for expression: {OXPath10Expression
$output0.body/xsd0:field1[position()=$i]}
12:39:37,781 ERROR [ASSIGN] Assignment Fault:
{http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure,lineNo=149,faultExplanation={http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure:
No results for expression: {OXPath10Expression
$output0.body/xsd0:field1[position()=$i]}
But when I simply replace $i with a normal unsignedInt variable $_i1, turning
the piece above into:
<forEach counterName="i" parallel="no">
<startCounterValue>1</startCounterValue>
<finalCounterValue>2</finalCounterValue>
<scope>
<assign>
<copy>
<from variable="i" />
<to variable="_i1"/>
</copy>
<copy>
<from>$i</from>
<to>$output0.body/xsd0:field1[position()=$_i1]</to>
<!-- note this line -->
</copy>
</assign>
</scope>
</forEach>
it works fine! How strange! The expression language and query language used are
both the default one, i.e. XPath 1.0.
Need I commit a bug report to the developers of ODE? :-)
Thanks & Regards.
Wenfeng
ZHAO Wenfeng
[email protected]
2009-01-21
