Package org.apache.tapestry.link

Source Code of org.apache.tapestry.link.PageLink

// Copyright 2004, 2005 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.INamespace;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.engine.IEngineService;
import org.apache.tapestry.engine.ILink;

/**
* A component for creating a navigation link to another page, using the page service. [ <a
* href="../../../../../ComponentReference/PageLink.html">Component Reference </a>]
*
* @author Howard Ship
*/

public abstract class PageLink extends AbstractLinkComponent
{
    public abstract IEngineService getPageService();

    public ILink getLink(IRequestCycle cycle)
    {
        String parameter = null;
        INamespace namespace = getTargetNamespace();
        String targetPage = getTargetPage();

        if (namespace == null)
            parameter = targetPage;
        else
            parameter = namespace.constructQualifiedName(targetPage);

        return getPageService().getLink(cycle, false, parameter);
    }

    public abstract String getTargetPage();

    /** @since 2.2 * */

    public abstract INamespace getTargetNamespace();
}
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