01: // Copyright 2006, 2007 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.corelib.mixins;
16:
17: import org.apache.tapestry.annotations.BeforeRenderBody;
18: import org.apache.tapestry.annotations.MixinAfter;
19:
20: /**
21: * Discards a component's body. Returns false from the {@link BeforeRenderBody} phase, which
22: * prevents the rendering of the body. Set up as a "MixinAfter" so that components can render their
23: * an alternative body if they so desire before this mixin cancels the normal body (from the
24: * container's template).
25: */
26: @MixinAfter
27: public class DiscardBody {
28: boolean beforeRenderBody() {
29: return false;
30: }
31: }
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