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Added by <A href="http://cwiki.apache.org/confluence/users/viewuserprofile.action?username=cr22rc">Rick R.</A>, last edited by <A href="http://cwiki.apache.org/confluence/display/~rfeng/Index">Raymond Feng</A> on Feb 02, 2007
(<A href="http://cwiki.apache.org/confluence/pages/diffpages.action?pageId=43968&originalId=44001">view change</A>)
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<H2><A name="SCAJavaBusinessExceptions-SupportingBusinessExceptions"></A>Supporting Business Exceptions</H2>
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<LI>How to declare business exceptions.<BR>
What defines business exception on each interface type. (ie Java wsdl)<BR>
In Java interface, business exceptions are declared checked exceptions specified on the operations of the services interface.<BR>
Note declared unchecked (runtime) exceptions are not considered business exceptions.<BR>
WSDL need to determine if all WSDL defined faults are business exceptions. Need to in investigate JAX-WS mapping of exceptions JAX-B databinding..<BR>
SDO has no similar specification. Need to determine a similar means for SDO to provide reliable transforms between JAX-B and SDO.</LI>
<LI>How to represent business exceptions.<BR>
In Java business exception are represented as non runtime exceptions. But not all runtime exceptions delivered in a message maybe a Business exception.<BR>
If a non runtime exceptions is delivered to a component that is does not declare the exception the exception will be wrappered in a specified runtime exception.<BR>
Jax-b need to further investigate the JAX-B specification and follow how it models business exceptions as objects.<BR>
SDO there are no specific mappings provided for. May need to wrapper complex parts of an exception as SDO objects in a specific Java exception.</LI>
<LI>How to transform business exceptions.<BR>
Provide in the data binding transformations between Axiom OMElement, SDO represented faults and JAX-B exceptions.<BR>
How to identify as business exceptions during the transforms.</LI>
<LI>How to propagate business exceptions.<BR>
Determine how to propagate exception in the Tuscany runtime message in local interactions. Make sure TargetInvocation exceptions become unwrappered<BR>
How in the case of webservice's binding propagate the message through web service binding. </LI>
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<P> <A href="feature-areas-and-what-folks-are-working-on.html" title="Feature areas and what folks are working on">BACK </A></P>
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