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

Class ColumnDefinitionExtractor

java.lang.Object

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

All Implemented Interfaces:

OptionalSQLSegmentExtractor, SQLSegmentExtractor

public final class ColumnDefinitionExtractor
extends Object
implements OptionalSQLSegmentExtractor

Column definition extractor.

Author:

duhongjun, zhangliang

Constructor Summary

Constructors

Constructor and Description
ColumnDefinitionExtractor()

Method Summary

Modifier and Type	Method and Description
com.google.common.base.Optional<ColumnDefinitionSegment>	extract(org.antlr.v4.runtime.ParserRuleContext ancestorNode) 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

ColumnDefinitionExtractor

public ColumnDefinitionExtractor()

Method Detail

extract

public com.google.common.base.Optional<ColumnDefinitionSegment> extract(org.antlr.v4.runtime.ParserRuleContext ancestorNode)

Description copied from interface: OptionalSQLSegmentExtractor

Extract SQL segment from SQL AST.

Specified by:

extract in interface OptionalSQLSegmentExtractor

Parameters:

ancestorNode - ancestor node of AST

Returns:

SQL segment