001// Copyright 2007, 2008 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.services; 016 017import org.apache.tapestry5.MarkupWriter; 018import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration; 019 020/** 021 * A strategy interface used for converting an object into markup that describes that object. This is primarily used in 022 * terms of an {@link org.apache.tapestry5.services.ExceptionReporter} page. 023 * <p/> 024 * The ObjectRenderer service (distinguished by the @{@link org.apache.tapestry5.ioc.annotations.Primary} marker 025 * annotation) uses {@linkplain org.apache.tapestry5.ioc.services.StrategyBuilder type-based matching} to find a 026 * specific ObjectRenderer for any given type. 027 */ 028@UsesMappedConfiguration(key = Class.class, value = ObjectRenderer.class) 029public interface ObjectRenderer<T> 030{ 031 /** 032 * Renders the object out as markup. 033 * 034 * @param object to be rendered 035 * @param writer to which output should be directed 036 */ 037 void render(T object, MarkupWriter writer); 038}