X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libjava%2Fjava%2Fbeans%2FVetoableChangeSupport.java;fp=libjava%2Fjava%2Fbeans%2FVetoableChangeSupport.java;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=831384830b680cc0f86a8818199c2d92448724e3;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git

diff --git a/libjava/java/beans/VetoableChangeSupport.java b/libjava/java/beans/VetoableChangeSupport.java
deleted file mode 100644
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--- a/libjava/java/beans/VetoableChangeSupport.java
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-/* java.beans.VetoableChangeSupport
-   Copyright (C) 1998 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., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 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.Hashtable;
-import java.util.Vector;
-import java.util.Enumeration;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.io.IOException;
-import java.io.Serializable;
-
-/**
- ** VetoableChangeSupport makes it easy to fire vetoable
- ** change events and handle listeners as well as reversion
- ** of old values when things go wrong.
- **
- ** @author John Keiser
- ** @since JDK1.1
- ** @version 1.2.0, 15 Mar 1998
- **/
-
-public class VetoableChangeSupport implements java.io.Serializable {
-	transient Hashtable propertyListeners = new Hashtable();
-	transient Vector listeners = new Vector();
-	Hashtable children;
-	Object source;
-	int vetoableChangeSupportSerializedDataVersion = 2;
-	private static final long serialVersionUID = -5090210921595982017L;
-
-	/**
-	 * Saves the state of the object to the stream. */
-	private void writeObject(ObjectOutputStream stream) throws IOException {
-		children = propertyListeners.isEmpty() ? null : propertyListeners;
-		stream.defaultWriteObject();
-		for (Enumeration e = listeners.elements(); e.hasMoreElements(); ) {
-			VetoableChangeListener l = (VetoableChangeListener)e.nextElement();
-			if (l instanceof Serializable)
-			  stream.writeObject(l);
-		}
-		stream.writeObject(null);
-	}
-
-	/**
-	 * Reads the object back from stream (deserialization).
-	 */
-	private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
-		stream.defaultReadObject();
-		propertyListeners = (children == null) ? new Hashtable() : children;
-		VetoableChangeListener l;
-		while ((l = (VetoableChangeListener)stream.readObject()) != null) {
-			addVetoableChangeListener(l);
-		}
-		// FIXME: XXX: There is no spec for JDK 1.1 serialization
-		// so it is unclear what to do if the value of
-		// vetoableChangeSupportSerializedDataVersion is 1.
-	}
-
-
-	/** Create VetoableChangeSupport to work with a specific
-	 ** source bean.
-	 ** @param source the source bean to use.
-	 **/
-	public VetoableChangeSupport(Object source) {
-		this.source = source;
-	}
-
-	/** Adds a VetoableChangeListener to the list of listeners.
-	 ** All property change events will be sent to this listener.
-	 ** <P>
-	 **
-	 ** The listener add is not unique: that is, <em>n</em> adds with
-	 ** the same listener will result in <em>n</em> events being sent
-	 ** to that listener for every property change.
-	 ** <P>
-	 **
-	 ** Adding a null listener will cause undefined behavior.
-	 **
-	 ** @param l the listener to add.
-	 **/
-	public void addVetoableChangeListener(VetoableChangeListener l) {
-		listeners.addElement(l);
-	}
-
-	/** Adds a VetoableChangeListener listening on the specified property.
-	 ** Events will be sent to the listener for that particular property.
-	 ** <P>
-	 **
-	 ** The listener add is not unique; that is, <em>n</em> adds on a
-	 ** particular property for a particular listener will result in
-	 ** <em>n</em> events being sent to that listener when that
-	 ** property is changed.
-	 ** <P>
-	 **
-	 ** The effect is cumulative, too; if you are registered to listen
-	 ** to receive events on all property changes, and then you
-	 ** register on a particular property, you will receive change
-	 ** events for that property twice.
-	 ** <P>
-	 **
-	 ** Adding a null listener will cause undefined behavior.
-	 **
-	 ** @param propertyName the name of the property to listen on.
-	 ** @param l the listener to add.
-	 **/
-	public void addVetoableChangeListener(String propertyName, VetoableChangeListener l) {
-		synchronized(propertyListeners) {
-			Vector v = (Vector)propertyListeners.get(propertyName);
-			try {
-				v.addElement(l);
-			} catch(NullPointerException e) {
-				/* If v is not found, create a new vector. */
-				v = new Vector();
-				v.addElement(l);
-				propertyListeners.put(propertyName, v);
-			}
-		}
-	}
-
-	/** Removes a VetoableChangeListener from the list of listeners.
-	 ** If any specific properties are being listened on, they must
-	 ** be deregistered by themselves; this will only remove the
-	 ** general listener to all properties.
-	 ** <P>
-	 **
-	 ** If <code>add()</code> has been called multiple times for a
-	 ** particular listener, <code>remove()</code> will have to be
-	 ** called the same number of times to deregister it.
-	 **
-	 ** @param l the listener to remove.
-	 **/
-	public void removeVetoableChangeListener(VetoableChangeListener l) {
-		listeners.removeElement(l);
-	}
-
-	/** Removes a VetoableChangeListener from listening to a specific property.
-	 ** <P>
-	 **
-	 ** If <code>add()</code> has been called multiple times for a
-	 ** particular listener on a property, <code>remove()</code> will
-	 ** have to be called the same number of times to deregister it.
-	 **
-	 ** @param propertyName the property to stop listening on.
-	 ** @param l the listener to remove.
-	 **/
-	public void removeVetoableChangeListener(String propertyName, VetoableChangeListener l) {
-		synchronized(propertyListeners) {
-			Vector v = (Vector)propertyListeners.get(propertyName);
-			try {
-				v.removeElement(l);
-				if(v.size() == 0) {
-					propertyListeners.remove(propertyName);
-				}
-			} catch(NullPointerException e) {
-				/* if v is not found, do nothing. */
-			}
-		}
-	}
-
-
-	/** Fire a VetoableChangeEvent to all the listeners.
-	 ** If any listener objects, a reversion event will be sent to
-	 ** those listeners who received the initial event.
-	 **
-	 ** @param proposedChange the event to send.
-	 ** @exception PropertyVetoException if the change is vetoed.
-	 **/
-	public void fireVetoableChange(PropertyChangeEvent proposedChange) throws PropertyVetoException {
-		int currentListener=0;
-		try {
-			for(;currentListener<listeners.size();currentListener++) {
-				((VetoableChangeListener)listeners.elementAt(currentListener)).vetoableChange(proposedChange);
-			}
-		} catch(PropertyVetoException e) {
-			PropertyChangeEvent reversion = new PropertyChangeEvent(proposedChange.getSource(),proposedChange.getPropertyName(),proposedChange.getNewValue(),proposedChange.getOldValue());
-			for(int sendAgain=0;sendAgain<currentListener;sendAgain++) {
-				try {
-					((VetoableChangeListener)listeners.elementAt(sendAgain)).vetoableChange(reversion);
-				} catch(PropertyVetoException e2) {
-				}
-			}
-			throw e;
-		}
-
-		Vector moreListeners = (Vector)propertyListeners.get(proposedChange.getPropertyName());
-		if(moreListeners != null) {
-			try {
-				for(currentListener = 0; currentListener < moreListeners.size(); currentListener++) {
-					((VetoableChangeListener)moreListeners.elementAt(currentListener)).vetoableChange(proposedChange);
-				}
-			} catch(PropertyVetoException e) {
-				PropertyChangeEvent reversion = new PropertyChangeEvent(proposedChange.getSource(),proposedChange.getPropertyName(),proposedChange.getNewValue(),proposedChange.getOldValue());
-				for(int sendAgain=0;sendAgain<listeners.size();sendAgain++) {
-					try {
-						((VetoableChangeListener)listeners.elementAt(currentListener)).vetoableChange(proposedChange);
-					} catch(PropertyVetoException e2) {		
-					}
-				}
-
-				for(int sendAgain=0;sendAgain<currentListener;sendAgain++) {
-					try {
-						((VetoableChangeListener)moreListeners.elementAt(sendAgain)).vetoableChange(reversion);
-					} catch(PropertyVetoException e2) {
-					}
-				}
-				throw e;
-			}
-		}
-	}
-
-	/** Fire a VetoableChangeEvent containing the old and new values of the property to all the listeners.
-	 ** If any listener objects, a reversion event will be sent to
-	 ** those listeners who received the initial event.
-	 **
-	 ** @param propertyName the name of the property that
-	 ** changed.
-	 ** @param oldVal the old value.
-	 ** @param newVal the new value.
-	 ** @exception PropertyVetoException if the change is vetoed.
-	 **/
-	public void fireVetoableChange(String propertyName, Object oldVal, Object newVal) throws PropertyVetoException {
-		fireVetoableChange(new PropertyChangeEvent(source,propertyName,oldVal,newVal));
-	}
-
-	/** Fire a VetoableChangeEvent containing the old and new values of the property to all the listeners.
-	 ** If any listener objects, a reversion event will be sent to
-	 ** those listeners who received the initial event.
-	 **
-	 ** @param propertyName the name of the property that
-	 ** changed.
-	 ** @param oldVal the old value.
-	 ** @param newVal the new value.
-	 ** @exception PropertyVetoException if the change is vetoed.
-	 **/
-	public void fireVetoableChange(String propertyName, boolean oldVal, boolean newVal) throws PropertyVetoException {
-		fireVetoableChange(new PropertyChangeEvent(source,propertyName,new Boolean(oldVal),new Boolean(newVal)));
-	}
-
-	/** Fire a VetoableChangeEvent containing the old and new values of the property to all the listeners.
-	 ** If any listener objects, a reversion event will be sent to
-	 ** those listeners who received the initial event.
-	 **
-	 ** @param propertyName the name of the property that
-	 ** changed.
-	 ** @param oldVal the old value.
-	 ** @param newVal the new value.
-	 ** @exception PropertyVetoException if the change is vetoed.
-	 **/
-	public void fireVetoableChange(String propertyName, int oldVal, int newVal) throws PropertyVetoException {
-		fireVetoableChange(new PropertyChangeEvent(source,propertyName,new Integer(oldVal),new Integer(newVal)));
-	}
-
-
-	/** 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.
-	 **
-	 ** @param propertyName the property that may be listened on
-	 ** @return whether the property is being listened on
-	 **/
-	public boolean hasListeners(String propertyName) {
-		return listeners.size() > 0  || propertyListeners.get(propertyName) != null;
-	}
-}