org.apache.drill.exec.store.hive.writers

Class HiveValueWriterFactory

java.lang.Object

org.apache.drill.exec.store.hive.writers.HiveValueWriterFactory

public final class HiveValueWriterFactory
extends Object

Factory used by reader to create Hive writers for columns.

Constructor Summary

Constructors

Constructor and Description
HiveValueWriterFactory(DrillBuf drillBuf, org.apache.drill.exec.vector.complex.impl.SingleMapWriter rootWriter)

Method Summary

Modifier and Type	Method and Description
HiveValueWriter	createHiveColumnValueWriter(String columnName, org.apache.hadoop.hive.serde2.objectinspector.StructField fieldRef) Method that will be called once for each column in reader to initialize column writer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HiveValueWriterFactory

public HiveValueWriterFactory(DrillBuf drillBuf,
                              org.apache.drill.exec.vector.complex.impl.SingleMapWriter rootWriter)

Method Detail

createHiveColumnValueWriter

public HiveValueWriter createHiveColumnValueWriter(String columnName,
                                                   org.apache.hadoop.hive.serde2.objectinspector.StructField fieldRef)

Method that will be called once for each column in reader to initialize column writer.

Parameters:

columnName - name of column for writer

fieldRef - metadata about field type

Returns:

instance of writer for column