001// Copyright 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 015package org.apache.tapestry.describe; 016 017/** 018 * An object that can describe its properties to a 019 * {@link org.apache.tapestry.describe.DescriptionReceiver}. 020 * 021 * @author Howard M. Lewis Ship 022 * @since 4.0 023 */ 024public interface Describable 025{ 026 /** 027 * Invoked to have the receiver describe itself (largely in terms of properties and values). If 028 * the caller does not invoke any methods on the receiver, then the a default description of the 029 * caller will be used (based on <code>toString()</code>. 030 */ 031 public void describeTo(DescriptionReceiver receiver); 032}