com.exasol.sql.dql.select

Class GroupByClause

java.lang.Object

com.exasol.sql.AbstractFragment

com.exasol.sql.dql.select.GroupByClause

All Implemented Interfaces:

SelectFragment, Fragment

public class GroupByClause
extends AbstractFragment
implements SelectFragment

This class represents the GROUP BY clause of an SQL statement.

Field Summary

Fields inherited from class com.exasol.sql.AbstractFragment

root

Constructor Summary

Constructors

Constructor and Description
GroupByClause(SqlStatement rootStatement, ColumnReference... columnReferences) Create a new instance of a GroupByClause.

Method Summary

Modifier and Type	Method and Description
void	accept(SelectVisitor visitor) Accept a visitor (e.g.
List<ColumnReference>	getColumnReferences() Get list of column references.
BooleanExpression	getHavingBooleanExpression() Get the boolean expression.
Select	having(BooleanExpression booleanExpression) Add having statement to the SQL query.

Methods inherited from class com.exasol.sql.AbstractFragment

getRoot

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.exasol.sql.Fragment

getRoot

Constructor Detail

GroupByClause

public GroupByClause(SqlStatement rootStatement,
                     ColumnReference... columnReferences)

Create a new instance of a GroupByClause.

Parameters:

rootStatement - SQL statement this GROUP BY clause belongs to

columnReferences - column references for the GROUP BY clause

Method Detail

accept

public void accept(SelectVisitor visitor)

Description copied from interface: SelectFragment

Accept a visitor (e.g. a renderer or validator)

Specified by:

accept in interface SelectFragment

Parameters:

visitor - visitor to accept

getColumnReferences

public List<ColumnReference> getColumnReferences()

Get list of column references.

Returns:

column name

having

public Select having(BooleanExpression booleanExpression)

Add having statement to the SQL query.

Parameters:

booleanExpression - boolean expression

Returns:

instance ofSelect for fluent programming

getHavingBooleanExpression

public BooleanExpression getHavingBooleanExpression()

Get the boolean expression.

Returns:

boolean expression