Source for java.beans.beancontext.BeanContextServiceRevokedEvent

   1: /* java.beans.beancontext.BeanContextServiceRevokedEvent
   2:    Copyright (C) 1999, 2000 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10:  
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package java.beans.beancontext;
  40: 
  41: /**
  42:  * Event fired when services are revoked from a <code>BeanContextServices</code>.
  43:  *
  44:  * @author John Keiser
  45:  * @since JDK1.2
  46:  * @see java.beans.beancontext.BeanContextServiceRevokedListener
  47:  */
  48: 
  49: public class BeanContextServiceRevokedEvent extends BeanContextEvent {
  50:        private static final long serialVersionUID = -1295543154724961754L;
  51: 
  52:        /**
  53:      * The <code>Class</code> representing the service which is now
  54:      * available.
  55:      */
  56:     protected Class serviceClass;
  57:     private boolean invalidateRefs;
  58: 
  59:     /**
  60:      * Create a new service revoked event.
  61:      * @param services the <code>BeanContextServices</code> through
  62:      *        which the service was available.  This is also the source
  63:      *        of the event.
  64:      * @param serviceClass the service class that is now revoked.
  65:      * @param revokeNow whether the revocation is immediate for all
  66:      *        classes or just a suggestion.
  67:      */
  68:     public BeanContextServiceRevokedEvent(BeanContextServices services, Class serviceClass, boolean revokeNow) {
  69:         super(services);
  70:         this.serviceClass = serviceClass;
  71:         invalidateRefs = revokeNow;
  72:     }
  73: 
  74:     /**
  75:      * Get the revoked service class.
  76:      * @return the service class.
  77:      */
  78:     public Class getServiceClass() {
  79:         return serviceClass;
  80:     }
  81: 
  82:     /**
  83:      * Tell whether the revoked service class is the same as the specified class.
  84:      * Identical to <code>getServiceClass().equals(c)</code>.
  85:      * @param c the class to compare.
  86:      * @return whether the clases are equal.
  87:      */
  88:     public boolean isServiceClass(Class c) {
  89:         return serviceClass.equals(c);
  90:     }
  91: 
  92:     /**
  93:      * Get the <code>BeanContextServices</code> through which the service was available.
  94:      * @return the <code>BeanContextServices</code> through which the
  95:      *         service was available.
  96:      */
  97:     public BeanContextServices getSourceAsBeanContextServices() {
  98:         return (BeanContextServices)getSource();
  99:     }
 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: }