Configuring Properties and Property Aliases Using the WSDL View

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The BPEL Service Engine uses a mechanism called correlation to track the multiple, stateful, long-running exchanges of messages that typically take place between a BPEL process and its partner services.

The procedure for enabling correlation in a BPEL process includes the following initial steps, which must be performed in the WSDL file:

Once you perform these steps in the WSDL file, you can create a correlation set in the BPEL process. The correlation set references one or more properties. The correlation set can then be used by message activities (Invoke, Reply, and Receive) and by the onMessage branches of Pick elements.

To add a property to a WSDL file:

  1. In the WSDL view, right-click the Extensibility Elements node and choose Add > Property.
    A property node appears under the Extensibility Elements node.
  2. If the Properties window is not visible, choose Window > Properties.
  3. Select the property node.
  4. Set the name property.
  5. You can set the ElementOrType property to a built-in simple type, such as string or date. If you added an inline schema or imported a schema, then you can select a type from the schema.

To add a property alias to a WSDL file:

  1. In the WSDL view, right-click the Extensibility Elements node and choose Add > Property Alias.
    A property alias node appears under the Extensibility Elements node.
  2. If the Properties window is not visible, choose Window > Properties.
  3. Select the property alias node.
  4. Specify values for the propertyName and ElementOrTypeOrMessagePart properties. These properties enable you to map data from a message into a property value.
  5. To add a query, right-click the property alias node and choose Add > query.
    A query node appears. The query node enables you to set the query language and the text of the query.
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About the WSDL View

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