001    // Copyright 2007 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.hivemind.definition;
016    
017    import org.apache.hivemind.internal.ServiceModel;
018    
019    /**
020     * Defines an implementation of a {@link ServicePointDefinition service point}. 
021     * The implementation instance is created by a {@link ImplementationConstructor}.
022     * 
023     * @author Huegen
024     */
025    public interface ImplementationDefinition extends ExtensionDefinition
026    {
027        /**
028         * @return the name of the {@link ServiceModel} to use 
029         */
030        public String getServiceModel();
031    
032        /**
033         * @return  the constructor for the creation of the implementation instance.
034         */
035        public ImplementationConstructor getServiceConstructor();
036    
037        /**
038         * @return  true, if this is the default implementation of the service
039         */
040        public boolean isDefault();
041    
042    }