org.apache.shardingsphere.shadow.route.engine.util

Class ShadowExtractor

java.lang.Object

org.apache.shardingsphere.shadow.route.engine.util.ShadowExtractor

public final class ShadowExtractor
extends Object

Shadow extractor.

Constructor Summary

Constructors

Constructor and Description
ShadowExtractor()

Method Summary

Modifier and Type	Method and Description
static Optional<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.column.ColumnSegment>	extractColumn(org.apache.shardingsphere.sql.parser.sql.common.segment.dml.expr.ExpressionSegment expressionSegment) Get column in expression segment.
static Optional<Collection<Comparable<?>>>	extractValues(org.apache.shardingsphere.sql.parser.sql.common.segment.dml.expr.ExpressionSegment expression, List<Object> parameters) Get values in expression segment.

Methods inherited from class java.lang.Object

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

Constructor Detail

ShadowExtractor

public ShadowExtractor()

Method Detail

extractColumn

public static Optional<org.apache.shardingsphere.sql.parser.sql.common.segment.dml.column.ColumnSegment> extractColumn(org.apache.shardingsphere.sql.parser.sql.common.segment.dml.expr.ExpressionSegment expressionSegment)

Get column in expression segment.

Parameters:

expressionSegment - expression segment

Returns:

column segment

extractValues

public static Optional<Collection<Comparable<?>>> extractValues(org.apache.shardingsphere.sql.parser.sql.common.segment.dml.expr.ExpressionSegment expression,
                                                                List<Object> parameters)

Get values in expression segment.

Parameters:

expression - expression segment

parameters - parameters

Returns:

values