01: // Copyright 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.components;
16:
17: import org.apache.tapestry.Block;
18: import org.apache.tapestry.annotations.Parameter;
19:
20: /**
21: * A component that does not do any rendering of its own, but will delegate to some other object
22: * that can do rendering. This other object may be a component or a {@link Block} (among other
23: * things).
24: */
25: public class Delegate {
26: /**
27: * Th object which will be rendered in place of the Delegate component. This is typically a
28: * specific component instance, or a {@link Block}.
29: */
30: @Parameter(required=true)
31: private Object _to;
32:
33: Object beginRender() {
34: return _to;
35: }
36: }
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