001/* An operator for data sources.
002 * 
003 * Copyright (c) 2014 The Regents of the University of California.
004 * All rights reserved.
005 *
006 * '$Author: crawl $'
007 * '$Date: 2014-06-05 00:10:40 +0000 (Thu, 05 Jun 2014) $' 
008 * '$Revision: 32755 $'
009 * 
010 * Permission is hereby granted, without written agreement and without
011 * license or royalty fees, to use, copy, modify, and distribute this
012 * software and its documentation for any purpose, provided that the above
013 * copyright notice and the following two paragraphs appear in all copies
014 * of this software.
015 *
016 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
017 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
018 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
019 * THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
020 * SUCH DAMAGE.
021 *
022 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
023 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
024 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
025 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
026 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
027 * ENHANCEMENTS, OR MODIFICATIONS.
028 *
029 */
030package org.kepler.spark.operator;
031
032import org.apache.spark.api.java.JavaSparkContext;
033
034/** An operator for reading data.
035 * 
036 *  @author Daniel Crawl
037 *  @version $Id: DataSource.java 32755 2014-06-05 00:10:40Z crawl $
038 */
039public abstract class DataSource extends Operator {
040
041    /** Create a new DataSource.
042     *  @param stub the stub for reading the data.
043     *  @param name the name of the operator.
044     */
045    public DataSource(Object stub, String name) {
046        super(0, stub, name);
047    }
048
049    /** Set the spark context. */
050    public void setContext(JavaSparkContext context) {
051        _context = context;
052    }
053
054    /** The Spark context. */
055    protected JavaSparkContext _context;
056}