001    // Copyright 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    
015    package org.apache.tapestry.portlet;
016    
017    import org.apache.tapestry.IRequestCycle;
018    
019    /**
020     * Used by {@link org.apache.tapestry.portlet.PortletHomeService} to determine the correct page name
021     * to use to render a request that does not specify a page (that's what the home service does).
022     * 
023     * @author Howard M. Lewis Ship
024     */
025    public interface PortletPageResolver
026    {
027        /**
028         * Looks at the current request to determine the correct page name.
029         * 
030         * @returns The page name to activate and render (never null).
031         */
032    
033        String getPageNameForRequest(IRequestCycle cycle);
034    }