Sun Microsystems 820433510 manual Connector Resources, An Overview of Connectors

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Connector Resources

This chapter explains how to configure connectors, which are used to access enterprise information systems (EISs). This chapter contains the following sections:

■“An Overview of Connectors” on page 81

■“Managing Connector Connection Pools” on page 82

■“Managing Connector Resources” on page 88

■“Managing Administered Object Resources” on page 90

An Overview of Connectors

Also called a resource adapter, a connector module is a Java EE component that enables applications to interact with enterprise information systems (EISs). EIS software includes various types of systems: enterprise resource planning (ERP), mainframe transaction processing, and non-relational databases, among others. Like other Java EE modules, to install a connector module you deploy it.

A connector connection pool is a group of reusable connections for a particular EIS. To create a connector connection pool, specify the connector module (resource adapter) that is associated with the pool.

A connector resource is a program object that provides an application with a connection to an EIS. To create a connector resource, specify its JNDI name and its associated connection pool. Multiple connector resources can specify a single connection pool. The application locates the resource by looking up its JNDI name. (For more information on JNDI, see the section JNDI Names and Resources.) The JNDI name of a connector resource for an EIS is usually in the java:comp/env/eis-specificsubcontext.

The Enterprise Server implements JMS by using a connector module (resource adapter). See the section, The Relationship Between JMS Resources and Connector Resources.

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