org.apache.hadoop.hive.ql.exec.vector
Class VectorColumnAssignFactory

java.lang.Object
  org.apache.hadoop.hive.ql.exec.vector.VectorColumnAssignFactory

public class VectorColumnAssignFactory
extends Object

This class is used as a static factory for VectorColumnAssign. Is capable of building assigners from expression nodes or from object inspectors.

Constructor Summary

VectorColumnAssignFactory()

Method Summary

static VectorColumnAssign[]	buildAssigners(VectorizedRowBatch outputBatch)
static VectorColumnAssign[]	buildAssigners(VectorizedRowBatch outputBatch, ObjectInspector outputOI, Map<String,Integer> columnMap, List<String> outputColumnNames) Builds the assigners from an object inspector and from a list of columns.
static VectorColumnAssign	buildObjectAssign(VectorizedRowBatch outputBatch, int outColIndex, ObjectInspector objInspector)

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorColumnAssignFactory

public VectorColumnAssignFactory()

Method Detail

buildAssigners

public static VectorColumnAssign[] buildAssigners(VectorizedRowBatch outputBatch)
                                           throws HiveException

Throws:

HiveException

buildObjectAssign

public static VectorColumnAssign buildObjectAssign(VectorizedRowBatch outputBatch,
                                                   int outColIndex,
                                                   ObjectInspector objInspector)
                                            throws HiveException

Throws:

HiveException

buildAssigners

public static VectorColumnAssign[] buildAssigners(VectorizedRowBatch outputBatch,
                                                  ObjectInspector outputOI,
                                                  Map<String,Integer> columnMap,
                                                  List<String> outputColumnNames)
                                           throws HiveException

Builds the assigners from an object inspector and from a list of columns.

Parameters:

outputBatch - The batch to which the assigners are bound

outputOI - The row object inspector

columnMap - Vector column map

outputColumnNames - Column names, used both to find the vector columns and the

Returns:

Throws:

HiveException