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Java > Open Source Codes > org > apache > tapestry > link > ServiceLink


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.link;
16
17 import org.apache.tapestry.IRequestCycle;
18 import org.apache.tapestry.engine.ILink;
19
20 /**
21  * A component for creating a link for an arbitrary {@link org.apache.tapestry.engine.IEngineService
22  * engine service}. A ServiceLink component can emulate an {@link ActionLink},
23  * {@link PageLink} or {@link DirectLink} component, but is most often used in
24  * conjunction with an application-specific service.
25  *
26  * [<a HREF="../../../../../ComponentReference/ServiceLink.html">Component Reference</a>]
27  *
28  * @author Howard Lewis Ship
29  *
30  **/
31
32 public abstract class ServiceLink extends AbstractLinkComponent
33 {
34     public ILink getLink(IRequestCycle cycle)
35     {
36         Object JavaDoc[] parameters = DirectLink.constructServiceParameters(getParameters());
37
38         return getLink(cycle, getService(), parameters);
39     }
40
41     public abstract String JavaDoc getService();
42
43     public abstract Object JavaDoc getParameters();
44 }
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