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author | Tom Tromey <tromey@redhat.com> | 2005-11-27 14:57:19 +0000 |
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committer | Tom Tromey <tromey@redhat.com> | 2005-11-27 14:57:19 +0000 |
commit | 848d02682e2d7ea388ce5a25ddd43166dffc91b8 (patch) | |
tree | bdbdc7acab86d27f369f16aba52b4406df2df84a | |
parent | 3490346039f95ce78f5e48caacc4c86699f8ea71 (diff) | |
download | classpath-848d02682e2d7ea388ce5a25ddd43166dffc91b8.tar.gz |
* java/beans/PropertyChangeSupport.java (fireIndexedPropertyChange):generics-merge-20051127
New methods.
* java/beans/IndexedPropertyChangeEvent.java: New file.
-rw-r--r-- | ChangeLog | 6 | ||||
-rw-r--r-- | java/beans/IndexedPropertyChangeEvent.java | 81 | ||||
-rw-r--r-- | java/beans/PropertyChangeSupport.java | 53 |
3 files changed, 140 insertions, 0 deletions
@@ -1,3 +1,9 @@ +2005-11-27 Tom Tromey <tromey@redhat.com> + + * java/beans/PropertyChangeSupport.java (fireIndexedPropertyChange): + New methods. + * java/beans/IndexedPropertyChangeEvent.java: New file. + 2005-11-26 Tom Tromey <tromey@redhat.com> * java/lang/StackTraceElement.java (StackTraceElement): New diff --git a/java/beans/IndexedPropertyChangeEvent.java b/java/beans/IndexedPropertyChangeEvent.java new file mode 100644 index 000000000..1a7306d14 --- /dev/null +++ b/java/beans/IndexedPropertyChangeEvent.java @@ -0,0 +1,81 @@ +/* Indexed property change event + Copyright (C) 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; + +/** + * This is like a PropertyChangeEvent, but also carries with it the + * index of the property which changed. + * @author Tom Tromey (tromey@redhat.com) + * @since 1.5 + */ +public class IndexedPropertyChangeEvent extends PropertyChangeEvent +{ + private static final long serialVersionUID = -320227448495806870L; + + /** + * Index of the item that was changed. + */ + private int index; + + /** + * Create a new IndexedPropertyChangeEvent. + * @param source the Bean containing the property + * @param name the property's name + * @param oldValue the old value of the property + * @param newValue the new value of the property + * @param index the index of the element in the property which changed + * @throws IllegalArgumentException if source is null + */ + public IndexedPropertyChangeEvent(Object source, String name, + Object oldValue, Object newValue, + int index) + { + super(source, name, oldValue, newValue); + this.index = index; + } + + /** + * Return the index of the changed property. + * @return the index + */ + public int getIndex() + { + return index; + } +} diff --git a/java/beans/PropertyChangeSupport.java b/java/beans/PropertyChangeSupport.java index a0e64af4d..da30f994d 100644 --- a/java/beans/PropertyChangeSupport.java +++ b/java/beans/PropertyChangeSupport.java @@ -397,6 +397,59 @@ public class PropertyChangeSupport implements Serializable } /** + * Fire an indexed property change event. This will only fire + * an event if the old and new values are not equal and not null. + * @param name the name of the property which changed + * @param index the index of the property which changed + * @param oldValue the old value of the property + * @param newValue the new value of the property + * @since 1.5 + */ + public void fireIndexedPropertyChange(String name, int index, + Object oldValue, Object newValue) + { + // FIXME: should we use equals() here? + if (oldValue == newValue && oldValue != null) + firePropertyChange(new IndexedPropertyChangeEvent(source, name, + oldValue, newValue, + index)); + } + + /** + * Fire an indexed property change event. This will only fire + * an event if the old and new values are not equal. + * @param name the name of the property which changed + * @param index the index of the property which changed + * @param oldValue the old value of the property + * @param newValue the new value of the property + * @since 1.5 + */ + public void fireIndexedPropertyChange(String name, int index, + int oldValue, int newValue) + { + if (oldValue != newValue) + fireIndexedPropertyChange(name, index, Integer.valueOf(oldValue), + Integer.valueOf(newValue)); + } + + /** + * Fire an indexed property change event. This will only fire + * an event if the old and new values are not equal. + * @param name the name of the property which changed + * @param index the index of the property which changed + * @param oldValue the old value of the property + * @param newValue the new value of the property + * @since 1.5 + */ + public void fireIndexedPropertyChange(String name, int index, + boolean oldValue, boolean newValue) + { + if (oldValue != newValue) + fireIndexedPropertyChange(name, index, Boolean.valueOf(oldValue), + Boolean.valueOf(newValue)); + } + + /** * Tell whether the specified property is being listened on or not. This * will only return <code>true</code> if there are listeners on all * properties or if there is a listener specifically on this property. |