001 /* ObjectFactory.java -- 002 Copyright (C) 2001, 2004, 2006 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package javax.naming.spi; 040 041 import java.util.Hashtable; 042 043 import javax.naming.Context; 044 import javax.naming.Name; 045 046 /** 047 * Represents a factory for creating the object. ObjectFactory performs the 048 * operation, that is the opposite to the operation, performed by the 049 * {@link StateFactory}. Classes, implementing this interface, must be public 050 * and have public parameterless constructor. 051 */ 052 public interface ObjectFactory 053 { 054 /** 055 * Creates the object, using the specified name and location information. The 056 * call of this method must be thread safe. 057 * 058 * @param refObj may provide the reference and location information. Can be null. 059 * @param name the name of the new object in the scope of the specified naming 060 * context. Can be null if the name is not specified. 061 * @param nameCtx the context, in which the object name is specified. Can be 062 * null if the name is specified in the scope of the default initial 063 * context. 064 * @param environment the properties, providing additional information on how 065 * to create an object. Can be null if not additional information is 066 * provided. 067 * @return the newly created object or null if the object cannot be created 068 * @throws Exception if this factory suggest not to try creating of this 069 * object by other alternative factories 070 * 071 * @see NamingManager#getObjectInstance(Object, Name, Context, Hashtable) 072 */ 073 Object getObjectInstance (Object refObj, Name name, Context nameCtx, 074 Hashtable<?, ?> environment) 075 throws Exception; 076 }