source: trunk/gcc/libjava/java/beans/beancontext/BeanContextServiceRevokedEvent.java

/* java.beans.beancontext.BeanContextServiceRevokedEvent
   Copyright (C) 1999, 2000 Free Software Foundation, Inc.

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02111-1307 USA.

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permission to link this library with independent modules to produce an
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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;
        }
}