io.shardingsphere.core.parsing.parser.clause.expression

类 AliasExpressionParser

java.lang.Object

io.shardingsphere.core.parsing.parser.clause.expression.AliasExpressionParser

直接已知子类:

MySQLAliasExpressionParser, OracleAliasExpressionParser, PostgreSQLAliasExpressionParser, SQLServerAliasExpressionParser

public abstract class AliasExpressionParser
extends Object

Alias expression parser.

作者:

zhangliang, maxiaoguang

构造器概要

构造器

构造器和说明
AliasExpressionParser()

方法概要

限定符和类型	方法和说明
protected abstract TokenType[]	getCustomizedAvailableKeywordsForSelectItemAlias()
protected abstract TokenType[]	getCustomizedAvailableKeywordsForTableAlias()
com.google.common.base.Optional<String>	parseSelectItemAlias() Parse alias for select item.
void	parseTableAlias() Parse alias for table.
com.google.common.base.Optional<String>	parseTableAlias(SQLStatement sqlStatement, boolean setTableToken, String tableName) Parse alias for table.

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

AliasExpressionParser

public AliasExpressionParser()

方法详细资料

parseSelectItemAlias

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

Parse alias for select item.

返回:

alias for select item

getCustomizedAvailableKeywordsForSelectItemAlias

protected abstract TokenType[] getCustomizedAvailableKeywordsForSelectItemAlias()

parseTableAlias

public void parseTableAlias()

Parse alias for table.

parseTableAlias

public com.google.common.base.Optional<String> parseTableAlias(SQLStatement sqlStatement,
                                                               boolean setTableToken,
                                                               String tableName)

Parse alias for table.

参数:

sqlStatement - SQL statement

setTableToken - is add table token

tableName - table name

返回:

alias for table

getCustomizedAvailableKeywordsForTableAlias

protected abstract TokenType[] getCustomizedAvailableKeywordsForTableAlias()