001/*
002 * JPPF.
003 * Copyright (C) 2005-2018 JPPF Team.
004 * http://www.jppf.org
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * 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
019package org.jppf.job;
020
021import java.io.Serializable;
022
023import org.jppf.node.protocol.JPPFDistributedJob;
024
025/**
026 * Interface used to select or filter jobs in a client, driver or node.
027 * @author Laurent Cohen
028 * @since 5.1
029 */
030public interface JobSelector extends Serializable {
031  /**
032   * A predefined singleton for {@link AllJobsSelector}.
033   */
034  JobSelector ALL_JOBS = new AllJobsSelector();
035
036  /**
037   * Determine whether the specified job is accepted by this selector. 
038   * @param job the job to check.
039   * @return {@code true} if the job is acepted, {@code false} otherwise.
040   */
041  boolean accepts(JPPFDistributedJob job);
042}