org.apache.shardingsphere.sql.parser.core.extractor.impl.dml.insert

Class OnDuplicateKeyColumnsExtractor

java.lang.Object

org.apache.shardingsphere.sql.parser.core.extractor.impl.dml.insert.OnDuplicateKeyColumnsExtractor

All Implemented Interfaces:

OptionalSQLSegmentExtractor, SQLSegmentExtractor

public final class OnDuplicateKeyColumnsExtractor
extends Object
implements OptionalSQLSegmentExtractor

On duplicate key columns extractor.

Author:

zhangliang

Constructor Summary

Constructors

Constructor and Description
OnDuplicateKeyColumnsExtractor()

Method Summary

Modifier and Type	Method and Description
com.google.common.base.Optional<OnDuplicateKeyColumnsSegment>	extract(org.antlr.v4.runtime.ParserRuleContext ancestorNode, Map<org.antlr.v4.runtime.ParserRuleContext,Integer> parameterMarkerIndexes) Extract SQL segment from SQL AST.

Methods inherited from class java.lang.Object

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

Constructor Detail

OnDuplicateKeyColumnsExtractor

public OnDuplicateKeyColumnsExtractor()

Method Detail

extract

public com.google.common.base.Optional<OnDuplicateKeyColumnsSegment> extract(org.antlr.v4.runtime.ParserRuleContext ancestorNode,
                                                                             Map<org.antlr.v4.runtime.ParserRuleContext,Integer> parameterMarkerIndexes)

Description copied from interface: OptionalSQLSegmentExtractor

Extract SQL segment from SQL AST.

Specified by:

extract in interface OptionalSQLSegmentExtractor

Parameters:

ancestorNode - ancestor node of AST

parameterMarkerIndexes - parameter marker indexes

Returns:

SQL segment