org.openrdf.sesame.query.rql.model
Class ClassSelector

java.lang.Object
  org.openrdf.sesame.query.rql.model.ClassSelector

All Implemented Interfaces:

Selector

public class ClassSelector

extends Object

implements Selector

Constructor Summary

ClassSelector(ClassVar classVar, ClassQuery classQ)
Creates a new ClassSelector that fills the supplied classVar with values from classQ. classQ is not allowed to be an instance of ClassVar.

Method Summary

void	clear() Clears the Selector.
void	initialize(RdfSchemaSource rss) Gives the Selector the opportunity to initialize itself.
boolean	selectNext(RdfSchemaSource rss) Selects the next values.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ClassSelector

public ClassSelector(ClassVar classVar,
                     ClassQuery classQ)

Creates a new ClassSelector that fills the supplied classVar with values from classQ. classQ is not allowed to be an instance of ClassVar.

Throws:

IllegalArgumentException - If classQ is an instance of ClassVar.

Method Detail

initialize

public void initialize(RdfSchemaSource rss)
                throws QueryEvaluationException

Description copied from interface: Selector

Gives the Selector the opportunity to initialize itself.

Specified by:

initialize in interface Selector

Throws:

QueryEvaluationException

selectNext

public boolean selectNext(RdfSchemaSource rss)
                   throws QueryEvaluationException

Description copied from interface: Selector

Selects the next values. Returns true if the selection was successful, false otherwise.

Specified by:

selectNext in interface Selector

Throws:

QueryEvaluationException

clear

public void clear()

Description copied from interface: Selector

Clears the Selector. The Selector will release all resources it is currently using. After the Selector has been cleared it should be reusable by re-initializing it.

Specified by:

clear in interface Selector

toString

public String toString()