| /* InstanceOnlyFilter.java -- filter on instance |
| Copyright (C) 2005 Free Software Foundation |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.classpath.jdwp.event.filters; |
| |
| import gnu.classpath.jdwp.event.Event; |
| import gnu.classpath.jdwp.exception.InvalidObjectException; |
| import gnu.classpath.jdwp.id.ObjectId; |
| |
| /** |
| * Restricts reported events to those whose active 'this' object is the |
| * given object. Match value is the null object for static methods. |
| * |
| * This modifier can be used with any event kind except class prepare, |
| * class unload, thread start, and thread end. Introduced in JDWP version 1.4. |
| * |
| * @author Keith Seitz (keiths@redhat.com) |
| */ |
| public class InstanceOnlyFilter |
| implements IEventFilter |
| { |
| private ObjectId _instance; |
| |
| /** |
| * Constructs a new <code>InstanceOnlyFilter</code>. |
| * |
| * @param oid the object to which to restrict events (may be null) |
| * @throws InvalidObjectException if Object is invalid |
| */ |
| public InstanceOnlyFilter (ObjectId oid) |
| throws InvalidObjectException |
| { |
| if (oid != null && oid.getReference().get () == null) |
| throw new InvalidObjectException (oid.getId ()); |
| |
| _instance = oid; |
| } |
| |
| /** |
| * Returns the instance to which to restrict events |
| * |
| * @return the object's ID |
| */ |
| public ObjectId getInstance () |
| { |
| return _instance; |
| } |
| |
| /** |
| * Does the given event match the filter? |
| * |
| * @param event the <code>Event</code> to scrutinize |
| */ |
| public boolean matches (Event event) |
| { |
| Object eventInstance = event.getParameter (Event.EVENT_INSTANCE); |
| if (eventInstance != null) |
| { |
| Object myInstance = _instance.getReference().get (); |
| return ((myInstance != null) && (myInstance == eventInstance)); |
| } |
| |
| return false; |
| } |
| } |