Package org.apache.shardingsphere.sql.parser.sql.common.util

Class ColumnExtractor

java.lang.Object

org.apache.shardingsphere.sql.parser.sql.common.util.ColumnExtractor

public final class ColumnExtractor
extends Object

Column extractor.

Constructor Summary

Constructors

Constructor	Description
ColumnExtractor()

Method Summary

Modifier and Type	Method	Description
static Collection<ColumnSegment>	extract(ExpressionSegment expression)	Extract column segment collection.
static void	extractColumnSegments(Collection<ColumnSegment> columnSegments, Collection<WhereSegment> whereSegments)	Extract column segments.

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnExtractor

public ColumnExtractor()

Method Detail

extract

public static Collection<ColumnSegment> extract(ExpressionSegment expression)

Extract column segment collection.

Parameters:

expression - expression segment

Returns:

column segment collection

extractColumnSegments

public static void extractColumnSegments(Collection<ColumnSegment> columnSegments,
                                         Collection<WhereSegment> whereSegments)

Extract column segments.

Parameters:

columnSegments - column segments

whereSegments - where segments