How to correct copy/append/insert a array in BPEL

Question

BPEL
Hi @ all,
I have a message type I'd like to iterate through and extract values from array (1).
Then place into another array (2):
TestOutputVariable(Array (1)):
<roottest>
<AAA>
<BBB>result1.1</BBB>
<BBB>result1.2</BBB>
<testname>test1</testname>
</AAA>
<AAA>
<BBB>result2.1</BBB>
<BBB>result2.2</BBB>
<testname>test2</testname>
</AAA>
</roottest>
ReportInputVariable(Array(2)):
<rootreport>
<AAA>
<name/>
</AAA>
</rootreport>
for example ReportInputVariable must be like:
<rootreport>
<AAA>
<name>test1
</AAA>
<AAA>
<name>test2
</AAA>
</rootreport>

Answer 1

Ok let's see (staying in english is allright I hope... eventhough my is getting really bad).
As I said I only can extract the data until now, haven't tried to write it to an array. In addition don't copy the code I give here because it's only to give you an hint. But the JDeveloper is a really cool tool to "click" the right expressions together...
So the trick is to "build" the xpath to access the arrayfield you want to fetch. Therefore at first you need an counter:
<assign><copy><from expression="1"><to variable="counter"></copy></assign>
Now you're going to build your xpath:
<copy><from expression="concat('/roottest/AAA[',bpws:getVariableData('counter'),']')"/>
<to variable="xpathPosition"/>
</copy>
Now you an xPath which is pointing to the child elements of your first node <AAA>. You use these expression now for the copy process:
<copy>
<from expression="bpws:getVariableData(???, ???, concat(bpws:getVariableData('xpathPosition'),'/testname'))"/>
<to variable="output"/>
</copy>
Notice that ??? stands for Variable and Part name - still fighting with the syntax. The main point is that concat gives you the xpath expression to the array field you want (for counter = 1 eg. "/roottest/AAA[1]/testname") - that's it.
To assign the value to an array - sorry, haven't tried it but the link I posted seemed good. The problem is that in order to insert the data into an array you have to append a new element into the array and therefore use one of the extended functions (=bpelx).
Viel Spaß damit :-)