In the most abstract form, web service messaging is based on sending and receiving messages. A given message is sent by one party, and received by a another. The messages might be related to each other, and it is important to identify the most common use cases among those related groups of messages; such message groups are defined as message exchange patterns, or MEPs.

A service requesters behavior in the transient period between two related messages defines the synchronous/asynchronous behavior in the client API. In the synchronous case, invocation at the client API would block, and wait until the related message arrives at the destination. In the non-blocking case, the client invocation continues without blocking, and when a related message arrives, it is correlated with earlier messages.

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Sandeep Joshi
Mathematics, Technology and Programming are my passion. I am a part of Java Ecosystem and through this blog, I contribute to it. I am here to blog about my interests, views and experiences.
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