org.apache.hadoop.hive.ql.exec.vector.expressions
Class VectorUDFTimestampFieldLong

java.lang.Object
  org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression
      org.apache.hadoop.hive.ql.exec.vector.expressions.VectorUDFTimestampFieldLong

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

VectorUDFDayOfMonthLong, VectorUDFHourLong, VectorUDFMinuteLong, VectorUDFMonthLong, VectorUDFSecondLong, VectorUDFUnixTimeStampLong, VectorUDFWeekOfYearLong, VectorUDFYearLong

public abstract class VectorUDFTimestampFieldLong
extends VectorExpression

Abstract class to return various fields from a Timestamp or Date.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

VectorExpression.Type

Field Summary

protected Calendar	calendar
protected int	colNum
protected int	field
protected int	outputColumn
protected Timestamp	ts

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

childExpressions, inputTypes, outputType

Constructor Summary

VectorUDFTimestampFieldLong()

VectorUDFTimestampFieldLong(int field, int colNum, int outputColumn)

Method Summary

void	evaluate(VectorizedRowBatch batch) This is the primary method to implement expression logic.
int	getColNum()
protected long	getDateField(long days)
VectorExpressionDescriptor.Descriptor	getDescriptor()
int	getField()
int	getOutputColumn() Returns the index of the output column in the array of column vectors.
String	getOutputType() Returns type of the output column.
protected Timestamp	getTimestamp(long nanos)
protected long	getTimestampField(long time)
void	setColNum(int colNum)
void	setField(int field)
void	setOutputColumn(int outputColumn)

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

evaluateChildren, getChildExpressions, getInputTypes, setChildExpressions, setInputTypes, setOutputType, toString

Methods inherited from class java.lang.Object

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

Field Detail

colNum

protected int colNum

outputColumn

protected int outputColumn

field

protected int field

calendar

protected final transient Calendar calendar

ts

protected final transient Timestamp ts

Constructor Detail

VectorUDFTimestampFieldLong

public VectorUDFTimestampFieldLong(int field,
                                   int colNum,
                                   int outputColumn)

VectorUDFTimestampFieldLong

public VectorUDFTimestampFieldLong()

Method Detail

getTimestamp

protected final Timestamp getTimestamp(long nanos)

getTimestampField

protected long getTimestampField(long time)

getDateField

protected long getDateField(long days)

evaluate

public void evaluate(VectorizedRowBatch batch)

Description copied from class: VectorExpression

This is the primary method to implement expression logic.

Specified by:

evaluate in class VectorExpression

getOutputColumn

public int getOutputColumn()

Description copied from class: VectorExpression

Returns the index of the output column in the array of column vectors. If not applicable, -1 is returned.

Specified by:

getOutputColumn in class VectorExpression

Returns:

Index of the output column

getOutputType

public String getOutputType()

Description copied from class: VectorExpression

Returns type of the output column.

Overrides:

getOutputType in class VectorExpression

getColNum

public int getColNum()

setColNum

public void setColNum(int colNum)

getField

public int getField()

setField

public void setField(int field)

setOutputColumn

public void setOutputColumn(int outputColumn)

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Specified by:

getDescriptor in class VectorExpression