| // Copyright 2004 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.link; |
| |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.Tapestry; |
| import org.apache.tapestry.engine.ILink; |
| |
| /** |
| * A component for creating a link to {@link org.apache.tapestry.IExternalPage} using the |
| * {@link org.apache.tapestry.engine.ExternalService}. |
| * |
| * [<a href="../../../../../ComponentReference/ExternalLink.html">Component Reference</a>] |
| * |
| * @see org.apache.tapestry.IExternalPage |
| * @see org.apache.tapestry.engine.ExternalService |
| * |
| * @author Malcolm Edgar |
| * @version $Id$ |
| * |
| **/ |
| |
| public abstract class ExternalLink extends AbstractLinkComponent |
| { |
| public ILink getLink(IRequestCycle cycle) |
| { |
| return getLink(cycle, Tapestry.EXTERNAL_SERVICE, getServiceParameters()); |
| } |
| |
| private Object[] getServiceParameters() |
| { |
| Object[] pageParameters = DirectLink.constructServiceParameters(getParameters()); |
| String targetPage = getTargetPage(); |
| |
| if (pageParameters == null) |
| return new Object[] { targetPage }; |
| |
| Object[] parameters = new Object[pageParameters.length + 1]; |
| |
| parameters[0] = targetPage; |
| |
| System.arraycopy(pageParameters, 0, parameters, 1, pageParameters.length); |
| |
| return parameters; |
| } |
| |
| public abstract Object getParameters(); |
| |
| public abstract String getTargetPage(); |
| } |