Package org.apache.ignite.internal.processors.query.h2.sql

Class GridSqlAggregateFunction

java.lang.Object

org.apache.ignite.internal.processors.query.h2.sql.GridSqlElement

org.apache.ignite.internal.processors.query.h2.sql.GridSqlFunction

org.apache.ignite.internal.processors.query.h2.sql.GridSqlAggregateFunction

All Implemented Interfaces:

GridSqlAst

public class GridSqlAggregateFunction
extends GridSqlFunction

Aggregate function.

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.query.h2.sql.GridSqlFunction

type

Constructor Summary

Constructors

Constructor	Description
GridSqlAggregateFunction(boolean distinct, GridSqlFunctionType type)
GridSqlAggregateFunction(boolean distinct, org.h2.expression.Aggregate.AggregateType type)

Method Summary

Modifier and Type	Method	Description
boolean	distinct()
GridSqlElement	getGroupConcatSeparator()
String	getSQL()
boolean	hasGroupConcatOrder()
protected static boolean	isValidType(org.h2.expression.Aggregate.AggregateType type)	Checks if the aggregate type is valid.
GridSqlAggregateFunction	setGroupConcatOrder(GridSqlElement[] orderExpression, boolean[] orderDesc)
GridSqlAggregateFunction	setGroupConcatSeparator(GridSqlElement separator)

Methods inherited from class org.apache.ignite.internal.processors.query.h2.sql.GridSqlFunction

name, type

Methods inherited from class org.apache.ignite.internal.processors.query.h2.sql.GridSqlElement

addChild, child, child, child, equals, hashCode, resultType, resultType, size, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GridSqlAggregateFunction

public GridSqlAggregateFunction(boolean distinct,
                                GridSqlFunctionType type)

Parameters:

distinct - Distinct.

type - Type.

GridSqlAggregateFunction

public GridSqlAggregateFunction(boolean distinct,
                                org.h2.expression.Aggregate.AggregateType type)

Parameters:

distinct - Distinct.

type - Type.

Method Detail

isValidType

protected static boolean isValidType(org.h2.expression.Aggregate.AggregateType type)

Checks if the aggregate type is valid.

Parameters:

type - Aggregate type.

Returns:

True is valid, otherwise false.

distinct

public boolean distinct()

Returns:

Distinct.

setGroupConcatOrder

public GridSqlAggregateFunction setGroupConcatOrder(GridSqlElement[] orderExpression,
                                                    boolean[] orderDesc)

Parameters:

orderExpression - Order expression.

orderDesc - Order descending flag.

Returns:

this for chaining.

hasGroupConcatOrder

public boolean hasGroupConcatOrder()

Returns:

true in case GROUP_CONCAT function contains ORDER BY expressions.

setGroupConcatSeparator

public GridSqlAggregateFunction setGroupConcatSeparator(GridSqlElement separator)

Parameters:

separator - Separator expression.

Returns:

this for chaining.

getGroupConcatSeparator

public GridSqlElement getGroupConcatSeparator()

Returns:

Separator expression.

getSQL

public String getSQL()

Specified by:

getSQL in interface GridSqlAst

Overrides:

getSQL in class GridSqlFunction

Returns:

Generate sql from this AST.