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Tomcat example source code file (

This example Tomcat source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Tomcat tags/keywords

context, default_openejb_factory, ejbref, hashtable, naming, object, object, objectfactory, properties, properties, refaddr, refaddr, reference, string, string, util

The Tomcat source code

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.naming.factory;

import org.apache.naming.EjbRef;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.naming.Reference;
import javax.naming.RefAddr;
import javax.naming.spi.ObjectFactory;
import java.util.Hashtable;
import java.util.Properties;

 * Object factory for EJBs.
 * @author Jacek Laskowski
 * @author Remy Maucherat
 * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $
public class OpenEjbFactory implements ObjectFactory {

    // -------------------------------------------------------------- Constants

    protected static final String DEFAULT_OPENEJB_FACTORY = 

    // -------------------------------------------------- ObjectFactory Methods

     * Crete a new EJB instance using OpenEJB.
     * @param obj The reference object describing the DataSource
    public Object getObjectInstance(Object obj, Name name, Context nameCtx,
                                    Hashtable environment)
        throws Exception {

        Object beanObj = null;

        if (obj instanceof EjbRef) {

            Reference ref = (Reference) obj;

            String factory = DEFAULT_OPENEJB_FACTORY;
            RefAddr factoryRefAddr = ref.get("openejb.factory");
            if (factoryRefAddr != null) {
                // Retrieving the OpenEJB factory
                factory = factoryRefAddr.getContent().toString();

            Properties env = new Properties();
            env.put(Context.INITIAL_CONTEXT_FACTORY, factory);

            RefAddr linkRefAddr = ref.get("");
            if (linkRefAddr != null) {
                String ejbLink = linkRefAddr.getContent().toString();
                beanObj = (new InitialContext(env)).lookup(ejbLink);


        return beanObj;



Other Tomcat examples (source code examples)

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