Receive activity

Chapter 17 Working with WS-BPEL 2.0

Receive activity

The receive activity defines how the business process waits for a matching message to arrive. The receive activity supports the concept of implicit assignments using the element <fromParts>.

Syntax

<receive name="ReceiveCreditInfo" partnerLink="CreditOrg" portType="cc:CheckCreditPT" operation="CheckCreditCallback"
   variable="VCreditInfo" createInstance="no">
  <correlations>
     <correlation set="AccountKey" initiate="no"/>
  </correlations>
</receive>

Mapping

You design a receive activity in any of the following ways:

Process object with the following properties:

Process property	Value
Implementation type	Execute operation
Action type	Receive request
Implemented by	Operation defined under a service provider within the same model
Received message	Input message of the operation
Message mapping	New variable with a message type

Right-click an <<empty>> process or a process without any stereotype and select the Change to Receive command
Drag the operation from the Browser and drop it on a process in the diagram window then set the appropriate action type

Extended attributes

The following extended attributes apply to the receive activity and are available from its property sheet:

Name	Internal code	Description
Create Instance	CreateInstance	Instantiates the process
Initiate Correlation	InitiateCorrelation	When a correlation is used by the receive activity the initiate attribute can be yes, no or join
Join Condition	joinCondition	Join condition
Suppress Join Failure	suppressJoinFailure	Avoids propagation of Join Failure exceptions
—	MultipleCorrelation	Defines BPEL Invoke, Receive or Reply activities using several correlations.
—	expressionLanguage	Specifies the expression language used in expressions