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

Class CompareTernaryTransformer

java.lang.Object

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

org.apache.iotdb.db.mpp.transformation.dag.transformer.ternary.TernaryTransformer

org.apache.iotdb.db.mpp.transformation.dag.transformer.ternary.CompareTernaryTransformer

All Implemented Interfaces:

LayerPointReader, YieldableReader

Direct Known Subclasses:

BetweenTransformer

public abstract class CompareTernaryTransformer
extends TernaryTransformer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CompareTernaryTransformer.Evaluator

Field Summary

Fields

Modifier and Type	Field	Description
protected CompareTernaryTransformer.Evaluator	evaluator

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

firstPointReader, firstPointReaderDataType, isCurrentConstant, isFirstPointReaderConstant, isSecondPointReaderConstant, isThirdPointReaderConstant, secondPointReader, secondPointReaderDataType, thirdPointReader, thirdPointReaderDataType

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	CompareTernaryTransformer(LayerPointReader firstPointReader, LayerPointReader secondPointReader, LayerPointReader thirdPointReader)

Method Summary

Modifier and Type	Method	Description
protected void	checkType()
protected abstract CompareTernaryTransformer.Evaluator	constructNumberEvaluator()
protected abstract CompareTernaryTransformer.Evaluator	constructTextEvaluator()
org.apache.iotdb.tsfile.file.metadata.enums.TSDataType	getDataType()
protected void	transformAndCache()

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

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

Field Detail

evaluator

protected final CompareTernaryTransformer.Evaluator evaluator

Constructor Detail

CompareTernaryTransformer

protected CompareTernaryTransformer(LayerPointReader firstPointReader,
                                    LayerPointReader secondPointReader,
                                    LayerPointReader thirdPointReader)
                             throws org.apache.iotdb.tsfile.exception.write.UnSupportedDataTypeException

Throws:

org.apache.iotdb.tsfile.exception.write.UnSupportedDataTypeException

Method Detail

constructNumberEvaluator

protected abstract CompareTernaryTransformer.Evaluator constructNumberEvaluator()

constructTextEvaluator

protected abstract CompareTernaryTransformer.Evaluator constructTextEvaluator()

checkType

protected final void checkType()

Specified by:

checkType in class TernaryTransformer

transformAndCache

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

Specified by:

transformAndCache in class TernaryTransformer

Throws:

QueryProcessException

java.io.IOException

getDataType

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