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Java example source code file (ObjectFactoryBuilder.java)

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

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Java - Java tags/keywords

hashtable, naming, namingexception, objectfactory, objectfactorybuilder, util

The ObjectFactoryBuilder.java Java example source code

/*
 * Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package javax.naming.spi;

import java.util.Hashtable;
import javax.naming.NamingException;

 /**
  * This interface represents a builder that creates object factories.
  *<p>
  * The JNDI framework allows for object implementations to
  * be loaded in dynamically via <em>object factories.
  * For example, when looking up a printer bound in the name space,
  * if the print service binds printer names to References, the printer
  * Reference could be used to create a printer object, so that
  * the caller of lookup can directly operate on the printer object
  * after the lookup.  An ObjectFactory is responsible for creating
  * objects of a specific type.  JNDI uses a default policy for using
  * and loading object factories.  You can override this default policy
  * by calling <tt>NamingManager.setObjectFactoryBuilder() with an ObjectFactoryBuilder,
  * which contains the program-defined way of creating/loading
  * object factories.
  * Any <tt>ObjectFactoryBuilder implementation must implement this
  * interface that for creating object factories.
  *
  * @author Rosanna Lee
  * @author Scott Seligman
  *
  * @see ObjectFactory
  * @see NamingManager#getObjectInstance
  * @see NamingManager#setObjectFactoryBuilder
  * @since 1.3
  */
public interface ObjectFactoryBuilder {
    /**
      * Creates a new object factory using the environment supplied.
      *<p>
      * The environment parameter is owned by the caller.
      * The implementation will not modify the object or keep a reference
      * to it, although it may keep a reference to a clone or copy.
      *
      * @param obj The possibly null object for which to create a factory.
      * @param environment Environment to use when creating the factory.
      *                 Can be null.
      * @return A non-null new instance of an ObjectFactory.
      * @exception NamingException If an object factory cannot be created.
      *
      */
    public ObjectFactory createObjectFactory(Object obj,
                                             Hashtable<?,?> environment)
        throws NamingException;
}

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