Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
Delegator |
|
| 1.5;1.5 |
1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // 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.components; | |
16 | ||
17 | import org.apache.tapestry.AbstractComponent; | |
18 | import org.apache.tapestry.IMarkupWriter; | |
19 | import org.apache.tapestry.IRender; | |
20 | import org.apache.tapestry.IRequestCycle; | |
21 | ||
22 | /** | |
23 | * A component which delegates it's behavior to another object. [<a | |
24 | * href="../../../../../components/general/delegator.html">Component Reference</a>] | |
25 | * | |
26 | * @author Howard Lewis Ship | |
27 | */ | |
28 | ||
29 | 0 | public abstract class Delegator extends AbstractComponent |
30 | { | |
31 | ||
32 | /** | |
33 | * Gets its delegate and invokes | |
34 | * {@link IRender#render(IMarkupWriter, IRequestCycle)} on it. | |
35 | */ | |
36 | ||
37 | protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) | |
38 | { | |
39 | 0 | IRender delegate = getDelegate(); |
40 | ||
41 | 0 | if (delegate != null) delegate.render(writer, cycle); |
42 | 0 | } |
43 | ||
44 | public abstract IRender getDelegate(); | |
45 | } |