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

Class FuncTimestampToTimestamp

java.lang.Object

org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

org.apache.hadoop.hive.ql.exec.vector.expressions.FuncTimestampToTimestamp

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

VectorUDFDatetimeLegacyHybridCalendarTimestamp

public abstract class FuncTimestampToTimestamp
extends VectorExpression

This is a superclass for unary functions and expressions taking a single timestamp and returning a timestamp, that operate directly on the input and set the output.

See Also:

Serialized Form

Field Summary

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

childExpressions, inputColumnNum, inputDataTypePhysicalVariations, inputTypeInfos, LOG, outputColumnNum, outputDataTypePhysicalVariation, outputTypeInfo

Constructor Summary

Constructors

Constructor and Description
FuncTimestampToTimestamp()
FuncTimestampToTimestamp(int inputColumn, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
void	evaluate(VectorizedRowBatch batch) This is the primary method to implement expression logic.
protected abstract void	func(TimestampColumnVector outputColVector, TimestampColumnVector inputColVector, int i)
VectorExpressionDescriptor.Descriptor	getDescriptor()
protected VectorExpressionDescriptor.ArgumentType	getInputColumnType()
String	vectorExpressionParameters()

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

displayArrayOfUtf8ByteArrays, displayUtf8Bytes, doTransientInit, doTransientInit, evaluateChildren, getChildExpressions, getChildExpressionsForTransientInit, getColumnParamString, getDoubleValueParamString, getInputDataTypePhysicalVariations, getInputTypeInfos, getLongValueParamString, getOutputColumnNum, getOutputColumnVectorType, getOutputDataTypePhysicalVariation, getOutputTypeInfo, getParamTypeString, getTypeName, init, setChildExpressions, setInputDataTypePhysicalVariations, setInputTypeInfos, setOutputDataTypePhysicalVariation, setOutputTypeInfo, shouldConvertDecimal64ToDecimal, supportsCheckedExecution, toString, transientInit

Methods inherited from class java.lang.Object

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

Constructor Detail

FuncTimestampToTimestamp

public FuncTimestampToTimestamp(int inputColumn,
                                int outputColumnNum)

FuncTimestampToTimestamp

public FuncTimestampToTimestamp()

Method Detail

func

protected abstract void func(TimestampColumnVector outputColVector,
                             TimestampColumnVector inputColVector,
                             int i)

evaluate

public void evaluate(VectorizedRowBatch batch)
              throws HiveException

Description copied from class: VectorExpression

This is the primary method to implement expression logic.

Specified by:

evaluate in class VectorExpression

Throws:

HiveException

vectorExpressionParameters

public String vectorExpressionParameters()

Specified by:

vectorExpressionParameters in class VectorExpression

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Specified by:

getDescriptor in class VectorExpression

getInputColumnType

protected VectorExpressionDescriptor.ArgumentType getInputColumnType()