web server - Borland Technical Publications

Document Type Definitions (DTDs)
myStringEnv
java.lang.String
MyStringEnvEntryValue
ejb/Sort
Session
SortHome
Sort
sort
reference to a jdbc datasource mentioned down in the DD section
jdbc/CheckingDataSource
javax.sql.DataSource
Container
Example of a vendor-specific file:
ejb/Sort
sort
jdbc/CheckingDataSource
datasources/OracleDataSource
For more information about environment entries, ejb-refs, or resource-refs, see the
relevant sections of Sun Microsystem's EJB 2.0 specifications at www.java.sun.com/
j2ee.
Sample code
This example shows the usage of the logical local JNDI naming context. It shows how
a client uses the deployment descriptors specified in the preceding section.
// get a JNDI context using the Naming service and create a remote object
javax.naming.Context context = new javax.naming.InitialContext();
Object ref = context.lookup("java:comp/env/ejb/Sort");
SortHome home = (SortHome) javax.rmi.PortableRemoteObject.narrow(ref,
SortHome.class);
Sort sort = home.create();
// get the value of an environment entry using JNDI
Object envValue = context.lookup("java:comp/env/myStringEnv");
System.out.println("Value of env entry = "+ (java.lang.String) envValue );
// locate a UserTransaction object
javax.transaction.UserTransaction userTransaction =
(javax.transaction.UserTransaction) context.lookup("java:comp/
100 BES Developer’s Guide