example4.java

BEA WebLogic Server 8.1大全 = BEA webLogic server 8.1 unleashed (美) Mark Artiges等著 袁毅 ... [等] 译 eng

package com.wlsunleashed.jndi;

import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;

/**
 * This Example demonstrates the process of listing a JNDI subtree. 
 * 
 * No warranties, explicit or implied are made about this source code.
 * This is provided as-is and 
 *
 * @version 1.0
 * @since July 2002
 */

public class Example4 {

	/**
	 *  Constant representing the Initial context factory to be used 
	 */
	private static final String INITIAL_CONTEXT_FACTORY = 
					"weblogic.jndi.WLInitialContextFactory" ;
		
	/**
	 * Constant representing the Provider URL 
	 */			
	private static final String PROVIDER_URL = 
					"t3://localhost:7001" ;

	/**
	 * The main method is invoked when the class file is executed 
	 * @param args : list of command line arguments
	 */
	public static void main(String[] args) {
		Example4 object = new Example4();
		try
		{
			object.listSubTree("javax.transaction");
		}
		catch (NamingException ne)
		{
			ne.printStackTrace();
		}
	}

	/**
	 * Prints the subtree denoted by the passed tree name
	 * the client's environment
	 * @param subTree The Tree name
	 * @return Object
	 */
	private void listSubTree(String subTree )
	throws NamingException
	{
		
		Hashtable props = new Hashtable() ;
		props.put( Context.INITIAL_CONTEXT_FACTORY, 
			INITIAL_CONTEXT_FACTORY );
		props.put( Context.PROVIDER_URL,
			PROVIDER_URL );
		Context ctx = new InitialContext( props );
        System.out.println("Listing Bindings under javax.transaction");
        NamingEnumeration enum = ctx.listBindings(subTree);    
        while (enum.hasMore())
        {
            System.out.println( enum.next() );    
        }
        System.out.println("listing done");       
		ctx.close();
	}
	
	
}