001    /* java.beans.beancontext.BeanContextServiceAvailableEvent
002       Copyright (C) 1999 Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010     
011    GNU Classpath is distributed in the hope that it will be useful, but
012    WITHOUT ANY WARRANTY; without even the implied warranty of
013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
034    this exception to your version of the library, but you are not
035    obligated to do so.  If you do not wish to do so, delete this
036    exception statement from your version. */
037    
038    
039    package java.beans.beancontext;
040    
041    import java.util.Iterator;
042    
043    /**
044     * Event fired when new services become available through a <code>BeanContextServices</code>.
045     *
046     * @author John Keiser
047     * @since JDK1.2
048     * @see java.beans.beancontext.BeanContextServicesListener
049     */
050    
051    public class BeanContextServiceAvailableEvent extends BeanContextEvent {
052           private static final long serialVersionUID = -5333985775656400778L;
053    
054           /**
055             * The <code>Class</code> representing the service which is now
056             * available.
057             */
058            protected Class serviceClass;
059    
060            /**
061             * Create a new service available event.
062             * @param services the <code>BeanContextServices</code> through
063             *        which the service is available.  This is also the source
064             *        of the event.
065             * @param serviceClass the service class that is now available.
066             */
067            public BeanContextServiceAvailableEvent(BeanContextServices services, Class serviceClass) {
068                    super(services);
069                    this.serviceClass = serviceClass;
070            }
071    
072            /**
073             * Get the current service selectors of the service class.
074             * This is identical to <code>getSourceAsBeanContextServices().getCurrentServiceSelectors(getServiceClass())</code>
075             * @return the current service selectors of the service class.
076             */
077            public Iterator getCurrentServiceSelectors() {
078                    return getSourceAsBeanContextServices().getCurrentServiceSelectors(serviceClass);
079            }
080    
081            /**
082             * Get the newly available service class.
083             * @return the service class.
084             */
085            public Class getServiceClass() {
086                    return serviceClass;
087            }
088    
089            /**
090             * Get the <code>BeanContextServices</code> through which the new service is available.
091             * @return the <code>BeanContextServices</code> through which the
092             *         new service is available.
093             */
094            public BeanContextServices getSourceAsBeanContextServices() {
095                    return (BeanContextServices)getSource();
096            }
097    }