Connector Resources
Thischapter explains how to congure connectors, which are used to access enterprise
informationsystems (EISs). This chapter contains the following sections:
■“AnOverview of Connectors” on page 81
■“ManagingConnector Connection Pools” on page 82
■“ManagingConnector Resources” on page 88
■“ManagingAdministered Object Resources” on page 90

An Overview of Connectors

Alsocalled a resource adapter, a connector module is a Java EE component that enables
applicationsto interact with enterprise information systems (EISs). EIS software includes
varioustypes of systems: enterprise resource planning (ERP), mainframe transaction
processing,and non-relational databases, among others. Like other Java EE modules, to install a
connectormodule you deploy it.
Aconnector connection pool is a group of reusable connections for a particular EIS. To create a
connectorconnection pool, specify the connector module (resource adapter) that is associated
withthe pool.
Aconnector 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.
Multipleconnector resources can specify a single connection pool. The application locates the
resourceby looking up its JNDI name. (For more information on JNDI, see the section JNDI
Namesand Resources.) The JNDI name of a connector resource for an EIS is usually in the
java:comp/env/eis-specicsubcontext.
TheEnterprise 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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