org.apache.shardingsphere.core.parse.antlr.sql.statement.dml

Class SelectStatement

java.lang.Object

org.apache.shardingsphere.core.parse.antlr.sql.statement.AbstractSQLStatement

org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.DQLStatement

org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.SelectStatement

All Implemented Interfaces:

SQLStatement

public final class SelectStatement
extends DQLStatement

Select statement.

Author:

zhangliang, panjuan

Constructor Summary

Constructors

Constructor and Description
SelectStatement()

Method Summary

Modifier and Type	Method and Description
boolean	containsSubquery() Judge contains subquery statement or not.
com.google.common.base.Optional<StarSelectItem>	findStarSelectItem(String tableNameOrAlias) Find star select item via table name or alias.
List<AggregationDistinctSelectItem>	getAggregationDistinctSelectItems() Get aggregation distinct select items.
List<AggregationSelectItem>	getAggregationSelectItems() Get aggregation select items.
com.google.common.base.Optional<String>	getAlias(String name) Get alias.
com.google.common.base.Optional<DistinctSelectItem>	getDistinctSelectItem() Get distinct select item optional.
Collection<StarSelectItem>	getQualifiedStarSelectItems() Get qualified star select items.
boolean	hasUnqualifiedStarSelectItem() Judge has unqualified star select item.
boolean	isSameGroupByAndOrderByItems() Judge group by and order by sequence is same or not.
SelectStatement	mergeSubqueryStatement() Merge subquery statement if contains.
void	setIndexForItems(Map<String,Integer> columnLabelIndexMap) Set index for select items.
void	setSubqueryStatement(SelectStatement subqueryStatement) Set subquery statement.

Methods inherited from class org.apache.shardingsphere.core.parse.antlr.sql.statement.dml.DQLStatement

isDQL

Methods inherited from class org.apache.shardingsphere.core.parse.antlr.sql.statement.AbstractSQLStatement

addSQLToken, findSQLToken, getSQLTokens, increaseParametersIndex

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.shardingsphere.core.parse.antlr.sql.statement.SQLStatement

getEncryptConditions, getLogicSQL, getParametersIndex, getRouteConditions, getTables, getType, setLogicSQL

Constructor Detail

SelectStatement

public SelectStatement()

Method Detail

getAlias

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

Get alias.

Parameters:

name - name or alias

Returns:

alias

getAggregationSelectItems

public List<AggregationSelectItem> getAggregationSelectItems()

Get aggregation select items.

Returns:

aggregation select items

getDistinctSelectItem

public com.google.common.base.Optional<DistinctSelectItem> getDistinctSelectItem()

Get distinct select item optional.

Returns:

distinct select items

getAggregationDistinctSelectItems

public List<AggregationDistinctSelectItem> getAggregationDistinctSelectItems()

Get aggregation distinct select items.

Returns:

aggregation distinct select items

hasUnqualifiedStarSelectItem

public boolean hasUnqualifiedStarSelectItem()

Judge has unqualified star select item.

Returns:

star select item without owner

getQualifiedStarSelectItems

public Collection<StarSelectItem> getQualifiedStarSelectItems()

Get qualified star select items.

Returns:

qualified star select items

findStarSelectItem

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

Find star select item via table name or alias.

Parameters:

tableNameOrAlias - table name or alias

Returns:

star select item via table name or alias

isSameGroupByAndOrderByItems

public boolean isSameGroupByAndOrderByItems()

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

Returns:

group by and order by sequence is same or not

setIndexForItems

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

Set index for select items.

Parameters:

columnLabelIndexMap - map for column label and index

setSubqueryStatement

public void setSubqueryStatement(SelectStatement subqueryStatement)

Set subquery statement.

Parameters:

subqueryStatement - subquery statement

containsSubquery

public boolean containsSubquery()

Judge contains subquery statement or not.

Returns:

contains subquery statement or not

mergeSubqueryStatement

public SelectStatement mergeSubqueryStatement()

Merge subquery statement if contains.

Returns:

Select select statement