io.shardingsphere.core.parsing.parser.sql.dql.select

类 SelectStatement

java.lang.Object

io.shardingsphere.core.parsing.parser.sql.AbstractSQLStatement

io.shardingsphere.core.parsing.parser.sql.dql.DQLStatement

io.shardingsphere.core.parsing.parser.sql.dql.select.SelectStatement

所有已实现的接口:

SQLStatement

public final class SelectStatement
extends DQLStatement

Select statement.

作者:

zhangliang

构造器概要

构造器

构造器和说明
SelectStatement()

方法概要

限定符和类型	方法和说明
boolean	containsSubQuery() Adjust contains sub query statement or not.
com.google.common.base.Optional<StarSelectItem>	findStarSelectItem(String tableNameOrAlias) Find star select item via table name or alias.
List<AggregationSelectItem>	getAggregationSelectItems() Get aggregation select items.
com.google.common.base.Optional<String>	getAlias(String name) Get alias.
Collection<StarSelectItem>	getQualifiedStarSelectItems() Get qualified star select items.
boolean	hasUnqualifiedStarSelectItem() Judge has unqualified star select item.
boolean	isSameGroupByAndOrderByItems() Adjust group by and order by sequence is same or not.
SelectStatement	mergeSubQueryStatement() Merge sub query statement if contains.
void	setIndexForItems(Map<String,Integer> columnLabelIndexMap) Set index for select items.
void	setSubQueryStatement(SelectStatement subQueryStatement) Set sub query statement.

从类继承的方法 io.shardingsphere.core.parsing.parser.sql.dql.DQLStatement

isDQL

从类继承的方法 io.shardingsphere.core.parsing.parser.sql.AbstractSQLStatement

getType, increaseParametersIndex

从类继承的方法 java.lang.Object

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

从接口继承的方法 io.shardingsphere.core.parsing.parser.sql.SQLStatement

getConditions, getParametersIndex, getSqlTokens, getTables, setParametersIndex

构造器详细资料

SelectStatement

public SelectStatement()

方法详细资料

getAlias

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

Get alias.

参数:

name - name or alias

返回:

alias

getAggregationSelectItems

public List<AggregationSelectItem> getAggregationSelectItems()

Get aggregation select items.

返回:

aggregation select items

hasUnqualifiedStarSelectItem

public boolean hasUnqualifiedStarSelectItem()

Judge has unqualified star select item.

返回:

star select item without owner

getQualifiedStarSelectItems

public Collection<StarSelectItem> getQualifiedStarSelectItems()

Get qualified star select items.

返回:

qualified star select items

findStarSelectItem

public com.google.common.base.Optional<StarSelectItem> findStarSelectItem(String tableNameOrAlias)

Find star select item via table name or alias.

参数:

tableNameOrAlias - table name or alias

返回:

star select item via table name or alias

isSameGroupByAndOrderByItems

public boolean isSameGroupByAndOrderByItems()

Adjust group by and order by sequence is same or not.

返回:

group by and order by sequence is same or not

setIndexForItems

public void setIndexForItems(Map<String,Integer> columnLabelIndexMap)

Set index for select items.

参数:

columnLabelIndexMap - map for column label and index

setSubQueryStatement

public void setSubQueryStatement(SelectStatement subQueryStatement)

Set sub query statement.

参数:

subQueryStatement - sub query statement

containsSubQuery

public boolean containsSubQuery()

Adjust contains sub query statement or not.

返回:

contains sub query statement or not

mergeSubQueryStatement

public SelectStatement mergeSubQueryStatement()

Merge sub query statement if contains.

返回:

Select select statement