org.apache.shardingsphere.core.parse.old.parser.clause

Class OrderByClauseParser

java.lang.Object

org.apache.shardingsphere.core.parse.old.parser.clause.OrderByClauseParser

All Implemented Interfaces:

SQLClauseParser

Direct Known Subclasses:

MySQLOrderByClauseParser, OracleOrderByClauseParser, PostgreSQLOrderByClauseParser, SQLServerOrderByClauseParser

public abstract class OrderByClauseParser
extends Object
implements SQLClauseParser

Order by clause parser.

Author:

zhangliang

Constructor Summary

Constructors

Constructor and Description
OrderByClauseParser(LexerEngine lexerEngine)

Method Summary

Modifier and Type	Method and Description
protected abstract OrderDirection	getNullOrderDirection()
void	parse(SelectStatement selectStatement) Parse order by.

Methods inherited from class java.lang.Object

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

Constructor Detail

OrderByClauseParser

public OrderByClauseParser(LexerEngine lexerEngine)

Method Detail

parse

public final void parse(SelectStatement selectStatement)

Parse order by.

Parameters:

selectStatement - select statement

getNullOrderDirection

protected abstract OrderDirection getNullOrderDirection()