Resource Connections
Resource Connections
Java Message Service objects, and URLs. The Java EE 5 platform provides mechanisms that
allow you to access all these resources in a similar manner. This chapter describes how to get
connections to several types of resources.
as databases. For example, a servlet might invoke remote methods on an enterprise bean that
retrieves information from a database. In the Java EE platform, the Java Naming and Directory
Interface (JNDI) naming service enables components to locate other components and
resources.
and messaging systems. (A JDBC resource is sometimes referred to as a data source.) Each
resource object is identified by a unique, people-friendly name, called the JNDI name.
the Application Server is jdbc/__default.
either the Admin Console or the asadmin command to create resources. Applications then use
annotations to inject the resources. If an application uses resource injection, the Application
Server invokes the JNDI API, and the application is not required to do so. However, it is also
possible for an application to locate resources by making direct calls to the JNDI API.
To create a new resource, a new name-object binding is entered into the JNDI namespace.