001 /* java.beans.beancontext.BeanContextServiceRevokedEvent 002 Copyright (C) 1999, 2000 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 java.beans.beancontext; 040 041 /** 042 * Event fired when services are revoked from a <code>BeanContextServices</code>. 043 * 044 * @author John Keiser 045 * @since JDK1.2 046 * @see java.beans.beancontext.BeanContextServiceRevokedListener 047 */ 048 049 public class BeanContextServiceRevokedEvent extends BeanContextEvent { 050 private static final long serialVersionUID = -1295543154724961754L; 051 052 /** 053 * The <code>Class</code> representing the service which is now 054 * available. 055 */ 056 protected Class serviceClass; 057 private boolean invalidateRefs; 058 059 /** 060 * Create a new service revoked event. 061 * @param services the <code>BeanContextServices</code> through 062 * which the service was available. This is also the source 063 * of the event. 064 * @param serviceClass the service class that is now revoked. 065 * @param revokeNow whether the revocation is immediate for all 066 * classes or just a suggestion. 067 */ 068 public BeanContextServiceRevokedEvent(BeanContextServices services, Class serviceClass, boolean revokeNow) { 069 super(services); 070 this.serviceClass = serviceClass; 071 invalidateRefs = revokeNow; 072 } 073 074 /** 075 * Get the revoked service class. 076 * @return the service class. 077 */ 078 public Class getServiceClass() { 079 return serviceClass; 080 } 081 082 /** 083 * Tell whether the revoked service class is the same as the specified class. 084 * Identical to <code>getServiceClass().equals(c)</code>. 085 * @param c the class to compare. 086 * @return whether the clases are equal. 087 */ 088 public boolean isServiceClass(Class c) { 089 return serviceClass.equals(c); 090 } 091 092 /** 093 * Get the <code>BeanContextServices</code> through which the service was available. 094 * @return the <code>BeanContextServices</code> through which the 095 * service was available. 096 */ 097 public BeanContextServices getSourceAsBeanContextServices() { 098 return (BeanContextServices)getSource(); 099 } 100 101 /** 102 * Tell whether current instances of the revoked service are usable or not. 103 * This is determined by whether the service was revoked 104 * immediately. 105 * 106 * @return whether current instances of the revoked service are 107 * usable. 108 */ 109 public boolean isCurrentServiceInvalidNow() { 110 return invalidateRefs; 111 } 112 }