J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2004 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.naming.spi; |
| 27 | |
| 28 | import java.util.Hashtable; |
| 29 | import javax.naming.NamingException; |
| 30 | |
| 31 | /** |
| 32 | * This interface represents a builder that creates object factories. |
| 33 | *<p> |
| 34 | * The JNDI framework allows for object implementations to |
| 35 | * be loaded in dynamically via <em>object factories</em>. |
| 36 | * For example, when looking up a printer bound in the name space, |
| 37 | * if the print service binds printer names to References, the printer |
| 38 | * Reference could be used to create a printer object, so that |
| 39 | * the caller of lookup can directly operate on the printer object |
| 40 | * after the lookup. An ObjectFactory is responsible for creating |
| 41 | * objects of a specific type. JNDI uses a default policy for using |
| 42 | * and loading object factories. You can override this default policy |
| 43 | * by calling <tt>NamingManager.setObjectFactoryBuilder()</tt> with an ObjectFactoryBuilder, |
| 44 | * which contains the program-defined way of creating/loading |
| 45 | * object factories. |
| 46 | * Any <tt>ObjectFactoryBuilder</tt> implementation must implement this |
| 47 | * interface that for creating object factories. |
| 48 | * |
| 49 | * @author Rosanna Lee |
| 50 | * @author Scott Seligman |
| 51 | * |
| 52 | * @see ObjectFactory |
| 53 | * @see NamingManager#getObjectInstance |
| 54 | * @see NamingManager#setObjectFactoryBuilder |
| 55 | * @since 1.3 |
| 56 | */ |
| 57 | public interface ObjectFactoryBuilder { |
| 58 | /** |
| 59 | * Creates a new object factory using the environment supplied. |
| 60 | *<p> |
| 61 | * The environment parameter is owned by the caller. |
| 62 | * The implementation will not modify the object or keep a reference |
| 63 | * to it, although it may keep a reference to a clone or copy. |
| 64 | * |
| 65 | * @param obj The possibly null object for which to create a factory. |
| 66 | * @param environment Environment to use when creating the factory. |
| 67 | * Can be null. |
| 68 | * @return A non-null new instance of an ObjectFactory. |
| 69 | * @exception NamingException If an object factory cannot be created. |
| 70 | * |
| 71 | */ |
| 72 | public ObjectFactory createObjectFactory(Object obj, |
| 73 | Hashtable<?,?> environment) |
| 74 | throws NamingException; |
| 75 | } |