com.facebook.presto.hive

Class SubfieldExtractor

java.lang.Object

com.facebook.presto.hive.SubfieldExtractor

public final class SubfieldExtractor
extends Object

Constructor Summary

Constructors

Constructor and Description
SubfieldExtractor(StandardFunctionResolution functionResolution, ExpressionOptimizer expressionOptimizer, ConnectorSession connectorSession)

Method Summary

Modifier and Type	Method and Description
Optional<Subfield>	extract(RowExpression expression)
DomainTranslator.ColumnExtractor<Subfield>	toColumnExtractor()
RowExpression	toRowExpression(Subfield subfield, Type columnType)

Methods inherited from class java.lang.Object

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

Constructor Detail

SubfieldExtractor

public SubfieldExtractor(StandardFunctionResolution functionResolution,
                         ExpressionOptimizer expressionOptimizer,
                         ConnectorSession connectorSession)

Method Detail

toColumnExtractor

public DomainTranslator.ColumnExtractor<Subfield> toColumnExtractor()

extract

public Optional<Subfield> extract(RowExpression expression)

toRowExpression

public RowExpression toRowExpression(Subfield subfield,
                                     Type columnType)