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

Class CompareBinaryTransformer

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.CompareBinaryTransformer

All Implemented Interfaces:

LayerPointReader, YieldableReader

Direct Known Subclasses:

CompareEqualToTransformer, CompareGreaterEqualTransformer, CompareGreaterThanTransformer, CompareLessEqualTransformer, CompareLessThanTransformer, CompareNonEqualTransformer

public abstract class CompareBinaryTransformer
extends BinaryTransformer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static interface	CompareBinaryTransformer.Evaluator

Field Summary

Fields

Modifier and Type	Field	Description
protected CompareBinaryTransformer.Evaluator	evaluator

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	CompareBinaryTransformer(LayerPointReader leftPointReader, LayerPointReader rightPointReader)

Method Summary

Modifier and Type	Method	Description
protected void	checkType()
protected abstract CompareBinaryTransformer.Evaluator	constructNumberEvaluator()
protected abstract CompareBinaryTransformer.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.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

Field Detail

evaluator

protected final CompareBinaryTransformer.Evaluator evaluator

Constructor Detail

CompareBinaryTransformer

protected CompareBinaryTransformer(LayerPointReader leftPointReader,
                                   LayerPointReader rightPointReader)
                            throws org.apache.iotdb.tsfile.exception.write.UnSupportedDataTypeException

Throws:

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

Method Detail

constructNumberEvaluator

protected abstract CompareBinaryTransformer.Evaluator constructNumberEvaluator()

constructTextEvaluator

protected abstract CompareBinaryTransformer.Evaluator constructTextEvaluator()

checkType

protected final void checkType()

Specified by:

checkType in class BinaryTransformer

transformAndCache

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

Specified by:

transformAndCache in class BinaryTransformer

Throws:

QueryProcessException

java.io.IOException

getDataType

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