Purpose of this example is to demonstrate how Correlation Identifier This section explains how the Correlation Identifier EIP can be implemented using WSO2 ESB. The idea of this EIP pattern is to ensure that the requester will be aware on for following topics are covered:
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Introduction to Correlation Identifier
The Correlation Identifier EIP facilitates a unique identifier that indicates which request message a given reply is for. It enables a requester that has received a reply to know which request the reply is for
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. For more information, refer to http://www.eaipatterns.com/CorrelationIdentifier.html.
Figure 1: Correlation Identifier EIP
How WSO2 ESB Implements the EIP
WSO2 message flow is structured in a way that where it will automatically manage the automatically manages requests sent by the client where in the message flow for each request a unique identification number will be injected into a client. It injects a unique identification number into the message context of each request. When the response arrives, the message will be uniquely identified through using this number which will allow the requestor , allowing the requester to distinguish among between requests.
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Correlation Identifier, Integration Patterns with WSO2 ESB |