001// Copyright 2010 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
015package org.apache.tapestry5.beanmodel.internal;
016
017import org.apache.tapestry5.beanmodel.PropertyConduit2;
018
019
020/**
021 * Extension to {@link org.apache.tapestry5.beanmodel.PropertyConduit2} that adds a method to determine the name of the property.
022 * 
023 * @since 5.2.0
024 *
025 */
026public interface InternalPropertyConduit extends PropertyConduit2
027{
028    /**
029     * Returns the name of the property read or updated by the conduit or null. 
030     * If the expression points to a property on a bean (e.g. user.name) this method returns the last property in the chain. 
031     * Otherwise this method returns {@code null}.
032     * 
033     * @return property name or {@code null}
034     * 
035     */
036    String getPropertyName();
037}