org.apache.hadoop.hive.ql.udf.ptf

Class ValueBoundaryScanner

java.lang.Object

org.apache.hadoop.hive.ql.udf.ptf.ValueBoundaryScanner

public abstract class ValueBoundaryScanner
extends Object

Constructor Summary

Constructors

Constructor and Description
ValueBoundaryScanner(BoundaryDef start, BoundaryDef end)

Method Summary

Modifier and Type	Method and Description
abstract int	computeEnd(int rowIdx, PTFPartition p)
abstract int	computeStart(int rowIdx, PTFPartition p)
static ValueBoundaryScanner	getScanner(WindowFrameDef winFrameDef)

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueBoundaryScanner

public ValueBoundaryScanner(BoundaryDef start,
                            BoundaryDef end)

Method Detail

computeStart

public abstract int computeStart(int rowIdx,
                                 PTFPartition p)
                          throws HiveException

Throws:

HiveException

computeEnd

public abstract int computeEnd(int rowIdx,
                               PTFPartition p)
                        throws HiveException

Throws:

HiveException

getScanner

public static ValueBoundaryScanner getScanner(WindowFrameDef winFrameDef)
                                       throws HiveException

Throws:

HiveException