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

Class Decimal64ScalarSubtractDecimal64Column

java.lang.Object

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

org.apache.hadoop.hive.ql.exec.vector.expressions.gen.Decimal64ScalarSubtractDecimal64Column

All Implemented Interfaces:

Serializable

public class Decimal64ScalarSubtractDecimal64Column
extends VectorExpression

Generated from template Decimal64ScalarArithmeticDecimal64Column.txt. Implements a vectorized arithmetic operator with a scalar on the left and a column vector on the right. The result is output to an output column vector.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected long	value

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
Decimal64ScalarSubtractDecimal64Column()
Decimal64ScalarSubtractDecimal64Column(long value, 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	shouldConvertDecimal64ToDecimal() By default vector expressions do not handle decimal64 types and should be converted into Decimal types if its output cannot handle Decimal64.
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, supportsCheckedExecution, toString, transientInit

Methods inherited from class java.lang.Object

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

Field Detail

value

protected final long value

Constructor Detail

Decimal64ScalarSubtractDecimal64Column

public Decimal64ScalarSubtractDecimal64Column(long value,
                                              int colNum,
                                              int outputColumnNum)

Decimal64ScalarSubtractDecimal64Column

public Decimal64ScalarSubtractDecimal64Column()

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

vectorExpressionParameters

public String vectorExpressionParameters()

Specified by:

vectorExpressionParameters in class VectorExpression

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Specified by:

getDescriptor in class VectorExpression

shouldConvertDecimal64ToDecimal

public boolean shouldConvertDecimal64ToDecimal()

Description copied from class: VectorExpression

By default vector expressions do not handle decimal64 types and should be converted into Decimal types if its output cannot handle Decimal64. Decimal64 that only deal with Decimal64 types cannot handle conversions so they should override this method and return false.

Overrides:

shouldConvertDecimal64ToDecimal in class VectorExpression