001    /*
002     * Copyright 2006 Stephen J. McConnell.
003     *
004     * Licensed  under the  Apache License,  Version 2.0  (the "License");
005     * you may not use  this file  except in  compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *   http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed  under the  License is distributed on an "AS IS" BASIS,
012     * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
013     * implied.
014     *
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    
019    package net.dpml.lang;
020    
021    import java.io.IOException;
022    import java.io.Writer;
023    
024    import dpml.lang.Classpath;
025    
026    import net.dpml.util.Logger;
027    import net.dpml.util.Resolver;
028    
029    import org.w3c.dom.Element;
030    
031    /**
032     * Interace implemented by part strategy handlers.
033     *
034     * @author <a href="http://www.dpml.net">Digital Product Management Laboratory</a>
035     * @version 2.0.1
036     */
037    public interface StrategyHandler
038    {
039       /**
040        * Creation of a new strategy handler for the supplied implementation class.
041        * @param c the component implementation class
042        * @exception IOException if an I/O error occurs
043        */
044        Strategy newStrategy( Class<?> c ) throws IOException;
045    
046       /**
047        * Creation of a new strategy handler for the supplied implementation class.
048        * @param c the component implementation class
049        * @param name the component name
050        * @exception IOException if an I/O error occurs
051        */
052        Strategy newStrategy( Class<?> c, String name ) throws IOException;
053        
054       /**
055        * Construct a new strategy using a supplied element and value resolver.
056        * @param classloader the classloader
057        * @param element the DOM element definining the deployment strategy
058        * @param resolver symbolic property resolver
059        * @param partition the assigned partition
060        * @param query the query 
061        * @param validate if true validate the strategy integrity
062        * @return the strategy
063        * @exception IOException if an I/O error occurs
064        */
065        Strategy build( 
066          ClassLoader classloader, Element element, Resolver resolver, String partition, 
067          String query, boolean validate ) throws IOException;
068    }