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• MapReduceFormat.java

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com.thinkaurelius.titan.hadoop.formats.MapReduceFormat Maven / Gradle / Ivy

package com.thinkaurelius.titan.hadoop.formats;

import com.thinkaurelius.titan.hadoop.compat.HadoopCompiler;

/**
 * If an Input- or OutputFormat requires some pre-post processing, then a MapReduceFormat can be implemented.
 * For InputFormats, the MapReduce jobs are prepended to the job pipeline and the final job must yield a HadoopVertex stream.
 * For OutputFormats, the MapReduce jobs are appended to the job pipeline and the first job must consume a HadoopVertex stream.
 *
 * @author Marko A. Rodriguez (http://markorodriguez.com)
 */
public interface MapReduceFormat {

    public void addMapReduceJobs(final HadoopCompiler compiler);
}