User Defined Function Issue with Inbound Node

Hello Guys,
I have some doubts to do the some code with a UDF.
I do a call to an RFC to get some data of R/3 from PI. In the return I have:
<item>
<field1>
<field2>
</item>
The item is 0 to unbounded, and I have to do a loop at the item and take the values of field1 and field2 of the last item.
I have created a UDF with context queue, but how can I take the values
It is correct if I have?
public void calculate(String[] var1, ResultList result, Container container) throws StreamTransformationException
String a = "";
String b = "";
String result = "";
for ( int i = 0; i < var1.length; i++ )
 a = var1.??
 b = var1.??
if ( a.equals( '' ) and b.equals( 'DELE' ) )
 result = a.
else
 result = "";
 result.addValue ( result)
I want to take the values of the las item for field1 and field2 in strings a and b, and after do a check of the values to put the result.
What I don't know hot to do is to take these values.
Could you help me please?
Many thanks in advance.
Regards,
Xavi.

Use removeContext just after the RFC lookup result & before the UDF. That would give you all the field values( field1 & field2) values in one context. Then use this UDF:
for(i=0;i<var1.length;i++)
if(i = var1.length - 1)
result.addValue(var1 ) ;
Use this same UDF for both the fields seperately.
Hope it helps.
Regards
Soumen...

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Cache
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Argument Count
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http://help.sap.com/saphelp_nw04/helpdata/en/d9/718e40496f6f1de10000000a1550b0/content.htm
http://java.sun.com/j2se/1.5.0/docs/api/
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Hi emmalou69 ,
You told your actual parameter is
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