001    /**
002     *
003     * Licensed to the Apache Software Foundation (ASF) under one or more
004     * contributor license agreements.  See the NOTICE file distributed with
005     * this work for additional information regarding copyright ownership.
006     * The ASF licenses this file to You under the Apache License, Version 2.0
007     * (the "License"); you may not use this file except in compliance with
008     * the License.  You may obtain a copy of the License at
009     *
010     * http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    package org.apache.camel.processor.loadbalancer;
019    
020    import org.apache.camel.Processor;
021    import org.apache.camel.Exchange;
022    import org.apache.camel.Processor;
023    
024    import java.util.List;
025    
026    /**
027     * A strategy for load balancing across a number of {@link Processor} instances
028     *
029     * @version $Revision: 1.1 $
030     */
031    public interface LoadBalancer extends Processor {
032        /**
033         * Adds a new processor to the load balancer
034         *
035         * @param processor the processor to be added to the load balancer
036         */
037        void addProcessor(Processor processor);
038    
039        /**
040         * Removes the given processor from the load balancer
041         *
042         * @param processor the processor to be removed from the load balancer
043         */
044        void removeProcessor(Processor processor);
045    
046        /**
047         * Returns the current processors available to this load balancer
048         *
049         * @return the processors available
050         */
051        List<Processor> getProcessors();
052    }