Package org.apache.iotdb.db.mpp.transformation.dag.transformer.binary

Class ArithmeticBinaryTransformer

java.lang.Object

org.apache.iotdb.db.mpp.transformation.dag.transformer.Transformer

org.apache.iotdb.db.mpp.transformation.dag.transformer.binary.BinaryTransformer

org.apache.iotdb.db.mpp.transformation.dag.transformer.binary.ArithmeticBinaryTransformer

All Implemented Interfaces:

LayerPointReader, YieldableReader

Direct Known Subclasses:

ArithmeticAdditionTransformer, ArithmeticDivisionTransformer, ArithmeticModuloTransformer, ArithmeticMultiplicationTransformer, ArithmeticSubtractionTransformer

public abstract class ArithmeticBinaryTransformer
extends BinaryTransformer

Field Summary

Fields inherited from class org.apache.iotdb.db.mpp.transformation.dag.transformer.binary.BinaryTransformer

isCurrentConstant, isLeftPointReaderConstant, isRightPointReaderConstant, leftPointReader, leftPointReaderDataType, rightPointReader, rightPointReaderDataType

Fields inherited from class org.apache.iotdb.db.mpp.transformation.dag.transformer.Transformer

cachedBinary, cachedBoolean, cachedDouble, cachedFloat, cachedInt, cachedLong, cachedTime, currentNull, hasCachedValue

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ArithmeticBinaryTransformer(LayerPointReader leftPointReader, LayerPointReader rightPointReader)

Method Summary

Modifier and Type	Method	Description
protected void	checkType()
protected abstract double	evaluate(double leftOperand, double rightOperand)
org.apache.iotdb.tsfile.file.metadata.enums.TSDataType	getDataType()
protected void	transformAndCache()

Methods inherited from class org.apache.iotdb.db.mpp.transformation.dag.transformer.binary.BinaryTransformer

cacheValue, castCurrentValueToDoubleOperand, isConstantPointReader, yieldValue

Methods inherited from class org.apache.iotdb.db.mpp.transformation.dag.transformer.Transformer

currentBinary, currentBoolean, currentDouble, currentFloat, currentInt, currentLong, currentTime, isCurrentNull, next, readyForNext, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

ArithmeticBinaryTransformer

protected ArithmeticBinaryTransformer(LayerPointReader leftPointReader,
                                      LayerPointReader rightPointReader)

Method Detail

checkType

protected void checkType()

Specified by:

checkType in class BinaryTransformer

transformAndCache

protected void transformAndCache()
                          throws QueryProcessException,
                                 java.io.IOException

Specified by:

transformAndCache in class BinaryTransformer

Throws:

QueryProcessException

java.io.IOException

evaluate

protected abstract double evaluate(double leftOperand,
                                   double rightOperand)

getDataType

public org.apache.iotdb.tsfile.file.metadata.enums.TSDataType getDataType()