Enterprise Integration Patterns: Designing, Building, and Deploying Messaging Solutions (Addison-Wesley Signature Series (Fowler))

by Hohpe Gregor

Send and forget

Store and forward

The create, send, receive, and process steps may seem like unnecessary overhead. Why not simply deliver the data to the receiver? By wrapping the data as a message and storing it in the messaging system, the applications delegate to the messaging system the responsibility of delivering the data. Because the data is wrapped as an atomic message, delivery can be retried until it succeeds, and the receiver can be assured of reliably receiving exactly one copy of the data.

messaging is more immediate than File Transfer (43), better encapsulated than Shared Database (47), and more reliable than Remote Procedure Invocation