March 2002
Intermediate to advanced
464 pages
8h 51m
English
book
Enterprise JavaBeans™ Component Architecture: Designing and Coding Enterprise Applications
by Gail Anderson, Paul Anderson
Content preview from Enterprise JavaBeans™ Component Architecture: Designing and Coding Enterprise Applications
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8.1. Messaging Architectures
Let's begin with a discussion of how one might send data between clients in an enterprise application. Consider the architecture shown in Figure 8-1. All clients are tightly coupled. This arrangement makes each client aware of other clients in a many-to-many relationship. In a Remote Procedure Call (RPC) environment (such as Java RMI), each business method represents a call which may be remote across a network. Because these calls are synchronous, the client's thread blocks and cannot proceed until the business method completes.
Figure 8-1. Synchronous Architecture
Tightly coupled RPC architectures can have problems. ...
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