    001//  Copyright 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.internal.util;
    016
    017import org.apache.tapestry5.Block;
    018import org.apache.tapestry5.MarkupWriter;
    019import org.apache.tapestry5.Renderable;
    020import org.apache.tapestry5.runtime.RenderCommand;
    021import org.apache.tapestry5.runtime.RenderQueue;
    022
    023/**
    024 * Allows any {@link org.apache.tapestry5.Renderable} object to act as a {@link org.apache.tapestry5.Block}. Basically,
    025 * dressed up the Renderable with the Block interface, and delegates the {@link org.apache.tapestry5.Renderable}
    026 * interface to the underlying renderable object.
    027 */
    028public class RenderableAsBlock implements Block, RenderCommand
    029{
    030    private final Renderable renderable;
    031
    032    public RenderableAsBlock(Renderable renderable)
    033    {
    034        this.renderable = renderable;
    035    }
    036
    037    /**
    038     * Invokes {@link Renderable#render(org.apache.tapestry5.MarkupWriter)}.
    039     */
    040    public void render(MarkupWriter writer, RenderQueue queue)
    041    {
    042        renderable.render(writer);
    043    }
    044
    045    @Override
    046    public String toString()
    047    {
    048        return String.format("Block[%s]", renderable);
    049    }
    050}