001    // Copyright 2004, 2005 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.tapestry.spec;
016    
017    /**
018     * An enumeration of the different possible lifecycles for a JavaBean.
019     * 
020     * @author Howard Lewis Ship
021     * @since 1.0.4
022     */
023    
024    public final class BeanLifecycle
025    {
026        /**
027         * No lifecycle; the bean is created fresh on each reference and not retained.
028         */
029    
030        public static final BeanLifecycle NONE = new BeanLifecycle("NONE");
031    
032        /**
033         * The standard lifecycle; the bean is retained for the duration of the request cycle and is
034         * discarded at the end of the request cycle.
035         */
036    
037        public static final BeanLifecycle REQUEST = new BeanLifecycle("REQUEST");
038    
039        /**
040         * The bean is created once and reused for the lifespan of the page containing the component.
041         */
042    
043        public static final BeanLifecycle PAGE = new BeanLifecycle("PAGE");
044    
045        /**
046         * The bean is create and reused until the end of the current render, at which point it is
047         * discarded.
048         * 
049         * @since 2.2
050         */
051    
052        public static final BeanLifecycle RENDER = new BeanLifecycle("RENDER");
053    
054        private final String _name;
055    
056        private BeanLifecycle(String name)
057        {
058            _name = name;
059        }
060    
061        public String toString()
062        {
063            return "BeanLifecycle[" + _name + "]";
064        }
065    
066        public String getName()
067        {
068            return _name;
069        }
070    
071    }