Java Callout-how can we pass certain type other then primitives

Hi,
I have a java method: void which accepts a message of certain type (bean with various properties i.e. LogType) which i want to invoke from the java call out method. I already have jar in the resources and can select the method but cannot figure out what to add in the 'Expression' for the input type
XSD:
<xs:element name="ErrorLog" type="log:ErrorLogType">
<complexType name="ErrorLogType">
<sequence>
<element name="error" type="string"/>
</sequence>
</complexType>
in the Java call out section i can select the method
Name section: com.package.ErrorLogType
Expression: <what to go here?> I have tried the following
<ns:ErrorLog xmlns:ns="http://my.name.space/error">
<ns:error>some error </ns:error> or <error>some error</error>
</ns:ErrorLog>
i have confirmed the package name of the generate types already which is correct.
I have already added the schema in the schema in namespace definition in Xquery Expression Editor
Thanks!
Edited by: sallo on Sep 8, 2009 4:58 PM

http://download.oracle.com/docs/cd/E13159_01/osb/docs10gr3/userguide/context.html --- how to pass java objects to java callouts is documented in Java Content in the body Variable
The content can be passed to another appropriate action (like Java callout) as a variable (for example, $pojo). The object itself is not touched. The argument is automatically de-referenced to the actual object.
Manoj

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