package org.apache.pig.backend.hadoop.executionengine.spark.converter;
import java.io.IOException;
import java.util.List;
import org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator;
import org.apache.spark.rdd.RDD;
/**
* Given an RDD and a PhysicalOperater, and implementation of this class can
* convert the RDD to another RDD.
*/
public interface POConverter<IN, OUT, T extends PhysicalOperator> {
RDD<OUT> convert(List<RDD<IN>> rdd, T physicalOperator) throws IOException;
}