Initial revision

From-SVN: r102074

libjava/classpath/java/beans/beancontext/BeanContextServiceRevokedEvent.java

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+/* java.beans.beancontext.BeanContextServiceRevokedEvent
+   Copyright (C) 1999, 2000 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.beancontext;
+
+/**
+ * Event fired when services are revoked from a <code>BeanContextServices</code>.
+ *
+ * @author John Keiser
+ * @since JDK1.2
+ * @see java.beans.beancontext.BeanContextServiceRevokedListener
+ */
+
+public class BeanContextServiceRevokedEvent extends BeanContextEvent {
+	/**
+	 * The <code>Class</code> representing the service which is now
+	 * available.
+	 */
+	protected Class serviceClass;
+	private boolean invalidateRefs;
+
+	/**
+	 * Create a new service revoked event.
+	 * @param services the <code>BeanContextServices</code> through
+	 *        which the service was available.  This is also the source
+	 *        of the event.
+	 * @param serviceClass the service class that is now revoked.
+	 * @param revokeNow whether the revocation is immediate for all
+	 *        classes or just a suggestion.
+	 */
+	public BeanContextServiceRevokedEvent(BeanContextServices services, Class serviceClass, boolean revokeNow) {
+		super(services);
+		this.serviceClass = serviceClass;
+		invalidateRefs = revokeNow;
+	}
+
+	/**
+	 * Get the revoked service class.
+	 * @return the service class.
+	 */
+	public Class getServiceClass() {
+		return serviceClass;
+	}
+
+	/**
+	 * Tell whether the revoked service class is the same as the specified class.
+	 * Identical to <code>getServiceClass().equals(c)</code>.
+	 * @param c the class to compare.
+	 * @return whether the clases are equal.
+	 */
+	public boolean isServiceClass(Class c) {
+		return serviceClass.equals(c);
+	}
+
+	/**
+	 * Get the <code>BeanContextServices</code> through which the service was available.
+	 * @return the <code>BeanContextServices</code> through which the
+	 *         service was available.
+	 */
+	public BeanContextServices getSourceAsBeanContextServices() {
+		return (BeanContextServices)getSource();
+	}
+
+	/**
+	 * Tell whether current instances of the revoked service are usable or not.
+	 * This is determined by whether the service was revoked
+	 * immediately.
+	 *
+	 * @return whether current instances of the revoked service are
+	 *         usable.
+	 */
+	public boolean isCurrentServiceInvalidNow() {
+		return invalidateRefs;
+	}
+}