    001    // Copyright 2006, 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.mixins;
    016
    017    import org.apache.tapestry5.annotations.BeforeRenderBody;
    018    import org.apache.tapestry5.annotations.MixinAfter;
    019
    020    /**
    021     * Discards a component's body. Returns false from the {@link BeforeRenderBody} phase, which prevents the rendering of
    022     * the body. Set up as a "MixinAfter" so that components can render their an alternative body if they so desire before
    023     * this mixin cancels the normal body (from the container's template).
    024     *
    025     * @tapestrydoc
    026     */
    027    @MixinAfter
    028    public class DiscardBody
    029    {
    030        boolean beforeRenderBody()
    031        {
    032            return false;
    033        }
    034    }