org.eclipse.rdf4j.sparqlbuilder.constraint

Class Aggregate

java.lang.Object

org.eclipse.rdf4j.sparqlbuilder.core.QueryElementCollection<T>

org.eclipse.rdf4j.sparqlbuilder.core.StandardQueryElementCollection<Operand>

org.eclipse.rdf4j.sparqlbuilder.constraint.Expression<Aggregate>

org.eclipse.rdf4j.sparqlbuilder.constraint.Aggregate

All Implemented Interfaces:

Operand, Assignable, Groupable, Orderable, QueryElement

public class Aggregate
extends Expression<Aggregate>

A SPARQL aggregate expression.

See Also:

SPARQL Aggregates

Field Summary

Fields inherited from class org.eclipse.rdf4j.sparqlbuilder.constraint.Expression

operator

Fields inherited from class org.eclipse.rdf4j.sparqlbuilder.core.QueryElementCollection

elements

Method Summary

Modifier and Type	Method and Description
Aggregate	countAll() If this is a count aggregate expressions, specify that it should count all
Aggregate	countAll(boolean countAll) If this is a count aggregate expressions, specify if it should count all
Aggregate	distinct() Specify this aggregate expression to be distinct
Aggregate	distinct(boolean isDistinct) Specify if this aggregate expression should be distinct or not
String	getQueryString()
Aggregate	separator(String separator) If this is a group_concat aggregate expression, specify the separator to use

Methods inherited from class org.eclipse.rdf4j.sparqlbuilder.constraint.Expression

parenthesize, parenthesize

Methods inherited from class org.eclipse.rdf4j.sparqlbuilder.core.StandardQueryElementCollection

printBodyIfEmpty, printNameIfEmpty, resetWrapperMethod, setOperatorName, setOperatorName, setWrapperMethod

Methods inherited from class org.eclipse.rdf4j.sparqlbuilder.core.QueryElementCollection

addElements, addElements, isEmpty

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.sparqlbuilder.core.Orderable

asc, desc

Methods inherited from interface org.eclipse.rdf4j.sparqlbuilder.core.Assignable

as

Method Detail

distinct

public Aggregate distinct()

Specify this aggregate expression to be distinct

Returns:

this aggregate instance

distinct

public Aggregate distinct(boolean isDistinct)

Specify if this aggregate expression should be distinct or not

Parameters:

isDistinct - if this aggregate should be distinct

Returns:

this aggregate instance

countAll

public Aggregate countAll()

If this is a count aggregate expressions, specify that it should count all

Returns:

this aggregate instance

countAll

public Aggregate countAll(boolean countAll)

If this is a count aggregate expressions, specify if it should count all

Parameters:

countAll - if this should count all arguments or not

Returns:

this aggregate instance

separator

public Aggregate separator(String separator)

If this is a group_concat aggregate expression, specify the separator to use

Parameters:

separator - the separator to use

Returns:

this aggregate instance

See Also:

group_concat()

getQueryString

public String getQueryString()

Specified by:

getQueryString in interface QueryElement

Overrides:

getQueryString in class StandardQueryElementCollection<Operand>

Returns:

the String representing the SPARQL syntax of this element