A resource adapter is a system-level software driver that is used
by a Java application to connect to an EIS. The resource adapter plugs
into an application server and provides connectivity between the EIS, the
application server, and the enterprise application. The resource
adapter collaborates with the application server to provide the
underlying mechanisms, transactions, security, and connection pooling
mechanisms. Once an EIS has a resource adapter, an application that
supports the
J2EETM Connector Architecture can
connect to the EIS.