001    // Copyright 2007, 2011 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.corelib.components;
016    
017    import org.apache.tapestry5.MarkupWriter;
018    import org.apache.tapestry5.beaneditor.PropertyModel;
019    import org.apache.tapestry5.corelib.base.AbstractPropertyOutput;
020    
021    /**
022     * Outputs a single property value. Overrides for individual properties come from block parameters whose name matches
023     * the {@linkplain PropertyModel#getId() property id}. This component is rarely used on its own, but is a critical piece
024     * of the {@link BeanDisplay} component.
025     * 
026     * @tapestrydoc
027     */
028    public class PropertyDisplay extends AbstractPropertyOutput
029    {
030        Object beginRender(MarkupWriter writer)
031        {
032            return renderPropertyValue(writer, getPropertyModel().getId());
033        }
034    }