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Inbound event notification complements outbound request processing, enabling
adapters to provide bidirectional communication between business processes and
EIS applications.
The IBM WebSphere Adapter portfolio of adapters is based on the Java 2 Platform,
Enterprise Edition (J2EE) standard. JCA is a standard architecture for integrating
J2EE applications with enterprise information systems. Each of these systems
provides native APIs for identifying a function to call, specifying its input data,
and processing its output data. The goal of the JCA standard is to provide an
independent API for coding these functions, to facilitate data sharing, and to
integrate J2EE applications with existing and other enterprise information systems.
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 multiple server runtimes. A WebSphere Adapter does the following:
v Integrates with multiple server runtimes, including WebSphere Process Server,
WebSphere Enterprise Service Bus, and WebSphere Application Server.
v Connects an application running on WebSphere Process Server with an EIS.
v Enables data exchange between the application and the EIS.
Each WebSphere Adapter is made up of the following:
v An implementation of the (J2EE) Connector Architecture (JCA), version 1.5,
which supports WebSphere Process Server and WebSphere Application Server.
v An enterprise metadata discovery component.
You use this component with the external service discovery wizard to introspect
the EIS to discover and generate business objects and other service component
architecture (SCA) artifacts that are compiled in a standard enterprise
application archive (EAR) file. You can also use the external service discovery
wizard to build a service (rather than discover a service). For example, you can
use the enterprise service discovery wizard to build services (based on search
criteria you provide), and generate business objects and interfaces.
The enterprise metadata discovery component implements version 1.1 of the
enterprise metadata discovery specification.
Files
WebSphere Process Server Enterprise information
system
Business
function
WebSphere
Adapter
J2E component
Figure 1. A WebSphere Adapter
WebSphere Adapter development overview 3