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

Class FuncDecimalToLong

java.lang.Object

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

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

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

CastDecimalToBoolean, CastDecimalToLong

public abstract class FuncDecimalToLong
extends VectorExpression

This is a superclass for unary decimal functions and expressions returning integers that operate directly on the input and set the output.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected PrimitiveObjectInspector.PrimitiveCategory	integerPrimitiveCategory

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
FuncDecimalToLong()
FuncDecimalToLong(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(LongColumnVector outputColVector, DecimalColumnVector inputColVector, int i)
VectorExpressionDescriptor.Descriptor	getDescriptor()
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

Field Detail

integerPrimitiveCategory

protected transient PrimitiveObjectInspector.PrimitiveCategory integerPrimitiveCategory

Constructor Detail

FuncDecimalToLong

public FuncDecimalToLong(int inputColumn,
                         int outputColumnNum)

FuncDecimalToLong

public FuncDecimalToLong()

Method Detail

func

protected abstract void func(LongColumnVector outputColVector,
                             DecimalColumnVector 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