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-/* EventObject.java -- represents an event on an object
- Copyright (C) 1999, 2000, 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.util;
-
-import java.io.Serializable;
-
-/**
- * Represents Events fired by Objects.
- *
- * @author Eric Blake (ebb9@email.byu.edu)
- * @see EventListener
- * @since 1.1
- * @status updated to 1.4
- */
-public class EventObject implements Serializable
-{
- /**
- * Compatible with JDK 1.1+.
- */
- private static final long serialVersionUID = 5516075349620653480L;
-
- /**
- * The source object; in other words, the object which this event takes
- * place on.
- */
- protected transient Object source;
-
- /**
- * Constructs an EventObject with the specified source.
- *
- * @param source the source of the event
- * @throws IllegalArgumentException if source is null (This is not
- * specified, but matches the behavior of the JDK)
- */
- public EventObject(Object source)
- {
- // This check for null is stupid, if you ask me, since source is
- // protected and non-final, so a subclass can set it to null later on.
- if (source == null)
- throw new IllegalArgumentException();
- this.source = source;
- }
-
- /**
- * Returns the source of the event.
- *
- * @return the event source
- */
- public Object getSource()
- {
- return source;
- }
-
- /**
- * Converts the event to a String. The format is not specified, but by
- * observation, the JDK uses:
- * <code>getClass().getName() + "[source=" + source + "]";</code>.
- *
- * @return String representation of the Event
- */
- public String toString()
- {
- return getClass().getName() + "[source=" + source + "]";
- }
-} // class EventObject