This activity specifies the partner link from which to receive information and the port type and operation for the partner link to invoke. This activity waits for an asynchronous callback response message from a service, such as a loan application approval service. While the BPEL process is waiting, it is dehydrated (compressed and stored) until the callback message arrives. The contents of this response are stored in a response variable in the process.

Figure A-28 shows the Receive dialog in BPEL 2.0. You can perform the following tasks:

• Provide a meaningful name.

• Select the partner link service for which to specify an operation.

• Select the operation to be performed.

• Automatically create a variable or select an existing variable in which to transport the callback response.

For more information about the receive activity, see the following:

• Introduction to Interaction Patterns in a BPEL Process

• Mapping WSDL Message Parts in BPEL 2.0

• Adding a Receive Activity

• Throwing Faults with Assertion Conditions

• Setting Timeouts for Request-Reply and In-Only Operations in Receive Activities