From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../java/beans/VetoableChangeListenerProxy.java | 102 +++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 libjava/classpath/java/beans/VetoableChangeListenerProxy.java (limited to 'libjava/classpath/java/beans/VetoableChangeListenerProxy.java') diff --git a/libjava/classpath/java/beans/VetoableChangeListenerProxy.java b/libjava/classpath/java/beans/VetoableChangeListenerProxy.java new file mode 100644 index 000000000..56ca5a38c --- /dev/null +++ b/libjava/classpath/java/beans/VetoableChangeListenerProxy.java @@ -0,0 +1,102 @@ +/* VetoableChangeListenerProxy.java -- adds a name to a vetoable listener + Copyright (C) 2002, 2005 Free Software Foundation, Inc. + +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 +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 java.beans; + +import java.util.EventListenerProxy; + +/** + * This class provides an extension to VetoableChangeListener - + * associating a name with the listener. This can be used to filter the + * changes that one is interested in. + * + * @author Eric Blake (ebb9@email.byu.edu) + * @since 1.4 + * @status udpated to 1.4 + */ +public class VetoableChangeListenerProxy extends EventListenerProxy + implements VetoableChangeListener +{ + /** + * The name of the property to listen for. Package visible for use by + * VetoableChangeSupport. + */ + final String propertyName; + + /** + * Create a new proxy which filters property change events and only passes + * changes to the named property on to the delegate. + * + * @param propertyName the property's name to filter on + * @param listener the delegate listener + */ + public VetoableChangeListenerProxy(String propertyName, + VetoableChangeListener listener) + { + super(listener); + this.propertyName = propertyName; + } + + /** + * Forwards the event on to the delegate if the property name matches. + * + * @param event the event to pass on, if it meets the filter + * @throws NullPointerException if the delegate this was created with is null + * @throws PropertyVetoException if the change is vetoed by the listener + */ + public void vetoableChange(PropertyChangeEvent event) + throws PropertyVetoException + { + // Note: Sun does not filter, under the assumption that since + // VetoableChangeSupport unwraps proxys, this method should never be + // called by normal use of listeners. + String name = event == null ? null : event.getPropertyName(); + if (name == null ? propertyName == null : name.equals(propertyName)) + ((VetoableChangeListener) getListener()).vetoableChange(event); + } + + /** + * Gets the name of the property this proxy is filtering on. + * + * @return the property name + */ + public String getPropertyName() + { + return propertyName; + } +} // class VetoableChangeListenerProxy -- cgit v1.2.3