com.dangdang.ddframe.rdb.sharding.parsing.parser

类 SQLParser

java.lang.Object

com.dangdang.ddframe.rdb.sharding.parsing.parser.AbstractParser

com.dangdang.ddframe.rdb.sharding.parsing.parser.SQLParser

直接已知子类:

MySQLParser, OracleParser, PostgreSQLParser, SQLServerParser

public class SQLParser
extends AbstractParser

SQL解析器.

作者:

zhangliang

构造器概要

构造器

构造器和说明
SQLParser(Lexer lexer, ShardingRule shardingRule)

方法概要

方法

限定符和类型	方法和说明
protected boolean	isRowNumberCondition(SelectStatement selectStatement, String columnLabel)
com.google.common.base.Optional<String>	parseAlias() 解析别名.
void	parseComparisonCondition(SQLStatement sqlStatement)
SQLExpression	parseExpression() 解析表达式.
SQLExpression	parseExpression(SQLStatement sqlStatement) 解析表达式.
void	parseSingleTable(SQLStatement sqlStatement) 解析单表.
void	parseWhere(SQLStatement sqlStatement) 解析查询条件.
boolean	skipJoin() 跳过表关联.

从类继承的方法 com.dangdang.ddframe.rdb.sharding.parsing.parser.AbstractParser

accept, equalAny, increaseParametersIndex, skipAll, skipIfEqual, skipParentheses, skipUntil, skipUselessParentheses

从类继承的方法 java.lang.Object

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

构造器详细资料

SQLParser

public SQLParser(Lexer lexer,
         ShardingRule shardingRule)

方法详细资料

parseExpression

public final SQLExpression parseExpression(SQLStatement sqlStatement)

解析表达式.

参数:

sqlStatement - SQL语句对象

返回:

表达式

parseExpression

public final SQLExpression parseExpression()

解析表达式.

返回:

表达式

parseAlias

public com.google.common.base.Optional<String> parseAlias()

解析别名.

返回:

别名

parseSingleTable

public final void parseSingleTable(SQLStatement sqlStatement)

解析单表.

参数:

sqlStatement - SQL语句对象

skipJoin

public final boolean skipJoin()

跳过表关联.

返回:

是否表关联.

parseWhere

public final void parseWhere(SQLStatement sqlStatement)

解析查询条件.

参数:

sqlStatement - SQL语句对象

parseComparisonCondition

public final void parseComparisonCondition(SQLStatement sqlStatement)

isRowNumberCondition

protected boolean isRowNumberCondition(SelectStatement selectStatement,
                           String columnLabel)