Class Filter

java.lang.Object

org.eclipse.rdf4j.sparqlbuilder.graphpattern.Filter

All Implemented Interfaces:

QueryElement

class Filter
extends Object
implements QueryElement

A SPARQL Filter Clause

See Also:

• SPARQL Filter

Field Summary

Fields

Modifier and Type	Field	Description
private Optional<Expression<?>>	constraint
private static final String	FILTER

Constructor Summary

Constructors

Constructor	Description
Filter()
Filter(Expression<?> expression)

Method Summary

Modifier and Type	Method	Description
Filter	filter(Expression<?> expression)	Set the constraint for this Filter clause
String	getQueryString()

Methods inherited from class Object

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

Field Details

FILTER

private static final String FILTER

See Also:

• Constant Field Values

constraint

private Optional<Expression<?>> constraint

Constructor Details

Filter

Filter()

Filter

Filter(Expression<?> expression)

Method Details

filter

public Filter filter(Expression<?> expression)

Set the constraint for this Filter clause

Parameters:

expression - the constraint to set

Returns:

this

getQueryString

public String getQueryString()

Specified by:

getQueryString in interface QueryElement

Returns:

the String representing the SPARQL syntax of this element