Use of Use of targetNamespace when invoking Java Service in separate SY application

[jeffdelong]

In order to invoke a Bean Service in another SwitchYard application, it seems that the targetNamespace must be added to the component reference.

	<sca:reference name="ITestService" targetNamespace="urn:org.openuri:TestService:0.0.1-SNAPSHOT">
	<sca:interface.java interface="org.openuri.TestService.ITestService"/>
	</sca:reference>

However Eclipse reports an error when opening switchyard.xml:

Error loading file: switchyard.xml. Feature 'targetNamespace' not found.

[kcbabo]

The SCA schema does not permit a targetNamespace attribute on the reference definition:

https://github.com/jboss-switchyard/core/blob/master/config/src/main/resources/org/oasis-open/docs/ns/opencsa/sca/200912/sca-core-1.1-cd06.xsd#L313

Unfortunately, you can't do this with a wire definition as it can't be used across composites.  Current thinking is that we will support this through an SCA binding which can link in the target service's namespace.