Imported gcc-4.4.3

[msp430-gcc.git] / libjava / java / util / Observable.java

diff --git a/libjava/java/util/Observable.java b/libjava/java/util/Observable.java
deleted file mode 100644 (file)
index 4760713..0000000
--- a/libjava/java/util/Observable.java
+++ /dev/null
@@ -1,166 +0,0 @@
-/* java.util.Observable
-   Copyright (C) 1999, 2000, 2001 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.util;
-
-/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
- * "The Java Language Specification", ISBN 0-201-63451-1
- * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status:  Believed complete and correct.
- */
-
-/**
- * @author Warren Levy <warrenl@cygnus.com>
- * @date September 2, 1998.
- */
-public class Observable
-{
-  /** tracks whether this object has changed */
-  private boolean changed;
-
-  /* list of the Observers registered as interested in this Observable */
-  private Vector observers;
-
-  /* TBD: This might be better implemented as an Observer[]
-   * but that would mean writing more code rather than making use of
-   * the existing Vector class (this also implies a larger text code
-   * space in resulting executables).  The tradeoff is one of speed
-   * (manipulating the Observer[] directly) vs. size/reuse.  In the future,
-   * we may decide to make the tradeoff and reimplement with an Observer[].
-   */
-
-  /**
-   * Constructs an Observable with zero Observers.
-   */
-  public Observable()
-  {
-    changed = false;
-    observers = new Vector();
-  }
-
-  /**
-   * Adds an Observer. If the observer was already added this method does
-   * nothing.
-   *
-   * @param observer Observer to add.
-   */
-  public synchronized void addObserver(Observer observer)
-  {
-    if (!observers.contains(observer))
-      observers.addElement(observer);
-  }
-
-  /**
-   * Reset this Observable's state to unchanged.
-   */
-  protected synchronized void clearChanged()
-  {
-    changed = false;
-  }
-
-  /**
-   * @return Number of Observers for this Observable.
-   */
-  public synchronized int countObservers()
-  {
-    return observers.size();
-  }
-
-  /**
-   * Deletes an Observer of this Observable.
-   *
-   * @param victim Observer to delete.
-   */
-  public synchronized void deleteObserver(Observer victim)
-  {
-    observers.removeElement(victim);
-  }
-
-  /**
-   * Deletes all Observers of this Observable.
-   */
-  public synchronized void deleteObservers()
-  {
-    observers.removeAllElements();
-  }
-
-  /**
-   * @return Whether or not this Observable has changed.
-   */
-  public synchronized boolean hasChanged()
-  {
-    return changed;
-  }
-
-  /**
-   * If the Observable has actually changed then tell all Observers about it,
-   * then resets state to unchanged.
-   */
-  public void notifyObservers()
-  {
-    notifyObservers(null);
-  }
-
-  /**
-   * If the Observable has actually changed then tell all Observers about it,
-   * then resets state to unchanged. 
-   * Note that though the order of notification is unspecified in subclasses,
-   * in Observable it is in the order of registration.
-   *
-   * @param obj Arguement to Observer's update method.
-   */
-  public void notifyObservers(Object obj)
-  {
-    if (!hasChanged())
-      return;
-    Vector ob1 = (Vector) observers.clone();
-
-    for (int i = 0; i < ob1.size(); i++)
-      ((Observer) ob1.elementAt(i)).update(this, obj);
-
-    clearChanged();
-  }
-
-  /**
-   * Marks this Observable as having changed.
-   */
-  protected synchronized void setChanged()
-  {
-    changed = true;
-  }
-}