A WSDL file is added to the SOA composite application whenever you create a new component that has a WSDL (for example, a service binding component, service component (for example, Oracle Mediator, BPEL process, and so on), or reference binding component). When you delete a component, any WSDL imports used by that component are removed only if not used by another component. The WSDL import is always removed when the last component that uses it is deleted.

When a service or reference binding component is updated to use a new WSDL, it is handled as if the interface was deleted and a new one was added. Therefore, the old WSDL import is only removed if it is not used by another component.

If a service or reference binding component is updated to use the same WSDL (porttype qname), but from a new location, the WSDL import and any other WSDL reference (for example, the BPEL process WSDL that imports an external reference WSDL) are automatically updated to reference the new location.

Simply changing the WSDL location in the source view of the composite_name (composite.xml) file's import is not sufficient. Other WSDL references in the metadata are required by the user interface (see the ui:wsdlLocation attribute in the composite services and references). There can also be other WSDL references required by runtime (for example, a WSDL that imports another WSDL, such as the BPEL process WSDL). Ensure that you change the following places in this file where a WSDL URL is referenced:

• User interface location - used only in Oracle JDeveloper.

• Import: Used during deployment.

• WSDL location in the reference definition: Used at runtime.

Always modify the WSDL location though the dialogs of the SOA Composite Editor in which a WSDL location is specified (for example, a web service, BPEL partner link, and so on). Changing the URL's host address is the exact case in which the SOA Composite Editor automatically updates all WSDL references.