Introduction to WebSphere Adapters

WebSphere® Adapters provide an integrated mechanism for communication between WebSphere Process Server applications and enterprise information systems. Your applications act upon the data stored in the enterprise information systems.

WebSphere Adapters implement the Java™ 2 Enterprise Edition (J2EE) Connector architecture (JCA) version 1.5. They are referred to as WebSphere Adapters or Resource Adapters. They manage bidirectional connectivity between enterprise information systems (EISs) and J2EE components supported by WebSphere Process Server.

JCA is designed to facilitate data sharing and to integrate new J2EE applications with legacy and other EISs. JCA stipulates how to develop a WebSphere Adapter that can:
The JCA standard accomplishes this by defining a series of contracts that govern interactions between an EIS and J2EE components within an application server. Fully compliant with the JCA standard, WebSphere Adapters have been developed to run on WebSphere Process Server. Compliance with JCA has several advantages:
Each WebSphere Adapter is made up of the following: A simplified version of the operation of a WebSphere Adapter is shown schematically in figure 1:
Figure 1. Simplified schematic of a WebSphere Adapter.The image shows the communication between the WebSphere Process Server and the EIS. The WebSphere Process Server is shown with an SCA component linked via a two-headed arrow to a WebSphere Adapter. A similar linking arrow runs from the WebSphere Adapter to an EIS which lies outside the WebSphere Process Server.

Last updated: Wed 06 Dec 2006 07:08:08

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