/*********************************************************************************************************************** * Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu) * * 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 eu.stratosphere.pact.runtime.iterative.concurrent; import eu.stratosphere.pact.runtime.hash.CompactingHashTable; /** * Used to hand over the hash-join from the iteration head to the solution-set match. */ public class SolutionSetBroker extends Broker<CompactingHashTable<?>> { /** * Singleton instance */ private static final SolutionSetBroker INSTANCE = new SolutionSetBroker(); /** * Retrieve the singleton instance. */ public static Broker<CompactingHashTable<?>> instance() { return INSTANCE; } private SolutionSetBroker() {} }