/**
* CloudGraph Community Edition (CE) License
*
* This is a community release of CloudGraph, a dual-license suite of
* Service Data Object (SDO) 2.1 services designed for relational and
* big-table style "cloud" databases, such as HBase and others.
* This particular copy of the software is released under the
* version 2 of the GNU General Public License. CloudGraph was developed by
* TerraMeta Software, Inc.
*
* Copyright (c) 2013, TerraMeta Software, Inc. All rights reserved.
*
* General License information can be found below.
*
* This distribution may include materials developed by third
* parties. For license and attribution notices for these
* materials, please refer to the documentation that accompanies
* this distribution (see the "Licenses for Third-Party Components"
* appendix) or view the online documentation at
* <http://cloudgraph.org/licenses/>.
*/
package org.cloudgraph.mapreduce;
import java.io.IOException;
import org.apache.hadoop.mapreduce.JobContext;
import org.plasma.query.Query;
import commonj.sdo.DataGraph;
/**
* Supports access to arbitrary data graphs at various stages of a <code>Job</code> as supplied
* based on the given <a href="http://plasma-sdo.org/org/plasma/query/Query.html">query</a>.
* @author Scott Cinnamond
* @since 0.5.8
*
* @see GraphWritable
* @see GraphMutator
*/
public interface GraphAccessor {
public DataGraph[] find(Query query, JobContext context) throws IOException;
}