001// Copyright 2004, 2005 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 015package org.apache.tapestry.link; 016 017import org.apache.tapestry.IRequestCycle; 018import org.apache.tapestry.engine.ILink; 019 020/** 021 * A component for creating a link for an arbitrary {@link org.apache.tapestry.engine.IEngineService 022 * engine service}. A ServiceLink component can emulate an {@link ActionLink}, 023 * {@link PageLink} or {@link DirectLink} component, but is most often used in 024 * conjunction with an application-specific service. 025 * 026 * [<a href="../../../../../ComponentReference/ServiceLink.html">Component Reference</a>] 027 * 028 * @author Howard Lewis Ship 029 * 030 **/ 031 032public abstract class ServiceLink extends AbstractLinkComponent 033{ 034 public ILink getLink(IRequestCycle cycle) 035 { 036 Object[] parameters = DirectLink.constructServiceParameters(getParameters()); 037 038 return getLink(cycle, getService(), parameters); 039 } 040 041 public abstract String getService(); 042 043 public abstract Object getParameters(); 044}