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.services.impl;
016    
017    import org.apache.tapestry.engine.IPropertySource;
018    import org.apache.tapestry.web.InitializationParameterHolder;
019    
020    /**
021     * Searches for property values inside objects that implement
022     * {@link org.apache.tapestry.web.InitializationParameterHolder}.
023     * 
024     * @author Howard Lewis Ship
025     * @since 4.0
026     */
027    public class InitializationParameterHolderPropertySource implements IPropertySource
028    {
029        private InitializationParameterHolder _holder;
030    
031        public String getPropertyValue(String propertyName)
032        {
033            return _holder.getInitParameterValue(propertyName);
034        }
035    
036        public void setHolder(InitializationParameterHolder holder)
037        {
038            _holder = holder;
039        }
040    
041    }