AIA User Extension Functions (AIA 11g)

Hey together,
I add the aia.jar in JDeveloper over Tools-->Preferences-->SOA and restart JDev (AIA Installation Guide 11g - Page 37) . After restart I get the following error in Messages-Log of JDev:
Error: Invalid XSL User Extension Function Config file file:\C:\Oracle\Middleware111120\jdeveloper\lib\aia.jar!\META-INF\ext-soa-xpath-functions-config.xml
Element not completed: 'function' line 11 column 14
Have anybody a solution or can I ignore the error?
Kind regards
Marcel

Hello Gerhard,
I'm pretty sure, that is no a pre-GA version. We test it on different machines and use aia.jar from AIA11g Server and we use AIA Service Constructor Update from Oracle Update Server. Here are an extract from XML-File:
<?xml version="1.0" encoding="UTF-8"?>
<soa-xpath-functions xmlns="http://xmlns.oracle.com/soa/config/xpath"
xmlns:aia="http://www.oracle.com/XSL/Transform/java/oracle.apps.aia.core.xpath.AIAFunctions">
<function name="aia:getSystemProperty">
<className>oracle.apps.aia.core.xpath.AIAFunctions</className>
<return type="string"/>
<params>
<param name="propertyName" type="string"/>
<param name="needAnException" type="boolean"/>
</params>
</function>
<function name="aia:getServiceProperty">
<className>oracle.apps.aia.core.xpath.AIAFunctions</className>
<return type="string"/>
<params>
<param name="serviceName" type="string"/>
<param name="propertyName" type="string"/>
<param name="needAnException" type="boolean"/>
</params>
</function>
Regards,
Marcel

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Hi ,
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Edited by: Scarpacci on Apr 1, 2011 6:06 AM

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Hi
I did the following test to see how expensive it is to use user defined functions in SQL queries, and found that it is really expensive.
Calling SQRT in SQL costs less than calling a dummy function that just returns
the parameter value; this has to do with context switchings, but how can we have
a decent performance compared to Oracle provided functions?
Any comments are welcome, specially regarding the performance of UDF in sql
and for solutions.
create or replace function f(i in number) return number is
begin
return i;
end;
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l_start   number;
l_elapsed number;
n number;
begin
select to_char(sysdate, 'sssssss')
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select to_char(sysdate, 'sssssss')
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select to_char(sysdate, 'sssssss') - l_start
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select to_char(sysdate, 'sssssss')
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for i in 1 .. 20 loop
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end;
Results:
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Kind regards
Taoufik

I find that inline SQL is bad for performance but
good to simplify SQL. I keep thinking that it should
be possible somehow to use a function to improve
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Context switching between SQL and PL/SQL for a User defined function is definitely a way to slow down performance.
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AIA User Extension Functions (AIA 11g)

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