org.apache.shardingsphere.core.parse.antlr.extractor.impl.ddl.column

Class DropColumnDefinitionExtractor

java.lang.Object

org.apache.shardingsphere.core.parse.antlr.extractor.impl.ddl.column.DropColumnDefinitionExtractor

All Implemented Interfaces:

CollectionSQLSegmentExtractor, SQLSegmentExtractor

public final class DropColumnDefinitionExtractor
extends Object
implements CollectionSQLSegmentExtractor

Drop column definition extractor.

Author:

duhongjun

Constructor Summary

Constructors

Constructor and Description
DropColumnDefinitionExtractor()

Method Summary

Modifier and Type	Method and Description
Collection<DropColumnDefinitionSegment>	extract(org.antlr.v4.runtime.ParserRuleContext ancestorNode) Extract SQL segments from SQL AST.

Methods inherited from class java.lang.Object

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

Constructor Detail

DropColumnDefinitionExtractor

public DropColumnDefinitionExtractor()

Method Detail

extract

public Collection<DropColumnDefinitionSegment> extract(org.antlr.v4.runtime.ParserRuleContext ancestorNode)

Description copied from interface: CollectionSQLSegmentExtractor

Extract SQL segments from SQL AST.

Specified by:

extract in interface CollectionSQLSegmentExtractor

Parameters:

ancestorNode - ancestor node of AST

Returns:

SQL segments