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

Class DoubleColUnaryMinusChecked

java.lang.Object

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

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

All Implemented Interfaces:

Serializable

public class DoubleColUnaryMinusChecked
extends VectorExpression

Generated from template ColumnUnaryMinus.txt, which covers unary negation operator.

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
DoubleColUnaryMinusChecked()
DoubleColUnaryMinusChecked(int colNum, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
void	evaluate(VectorizedRowBatch batch) This is the primary method to implement expression logic.
VectorExpressionDescriptor.Descriptor	getDescriptor()
boolean	supportsCheckedExecution() A vector expression which implements a checked execution to account for overflow handling should override this method and return true.
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, toString, transientInit

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleColUnaryMinusChecked

public DoubleColUnaryMinusChecked(int colNum,
                                  int outputColumnNum)

DoubleColUnaryMinusChecked

public DoubleColUnaryMinusChecked()

Method Detail

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

supportsCheckedExecution

public boolean supportsCheckedExecution()

Description copied from class: VectorExpression

A vector expression which implements a checked execution to account for overflow handling should override this method and return true. In such a case Vectorizer will use Checked variation of the vector expression to process data

Overrides:

supportsCheckedExecution in class VectorExpression

Returns:

true if vector expression implements a Checked variation of vector expression

vectorExpressionParameters

public String vectorExpressionParameters()

Specified by:

vectorExpressionParameters in class VectorExpression

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Specified by:

getDescriptor in class VectorExpression