001    // Copyright 2006, 2008, 2009 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.ioc.internal;
016    
017    import org.apache.tapestry5.ioc.ObjectCreator;
018    import org.apache.tapestry5.ioc.ServiceLifecycle2;
019    import org.apache.tapestry5.ioc.ServiceResources;
020    
021    /**
022     * The basic implementation of a service lifecycle, which simply uses the {@link org.apache.tapestry5.ioc.ObjectCreator}
023     * to create an instance of the service when asked.
024     */
025    public class SingletonServiceLifecycle implements ServiceLifecycle2
026    {
027        public Object createService(ServiceResources resources, ObjectCreator creator)
028        {
029            return creator.createObject();
030        }
031    
032        public boolean isSingleton()
033        {
034            return true;
035        }
036    
037        public boolean requiresProxy()
038        {
039            return false;
040        }
041    }