org.openrdf.sesame.sail.query
Class IsResource

java.lang.Object
  org.openrdf.sesame.sail.query.IsResource

All Implemented Interfaces:

BooleanExpr

public class IsResource

extends Object

implements BooleanExpr

Constructor Summary

IsResource(Var var)

Method Summary

void	getVariables(Collection variables) Gets all variables that are used in this BooleanExpr.
boolean	isTrue(RdfSource rdfSource) Determines whether the operand (a variable) contains a Resource.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

IsResource

public IsResource(Var var)

Method Detail

isTrue

public boolean isTrue(RdfSource rdfSource)
               throws SailQueryException

Determines whether the operand (a variable) contains a Resource.

Specified by:

isTrue in interface BooleanExpr

Parameters:

rdfSource - The RdfSource to evaluate the boolean expression against.

Returns:

true if the operand contains a Resource, false otherwise.

Throws:

SailQueryException

getVariables

public void getVariables(Collection variables)

Description copied from interface: BooleanExpr

Gets all variables that are used in this BooleanExpr.

Specified by:

getVariables in interface BooleanExpr

Parameters:

variables - A Collection to add the Var objects to.

toString

public String toString()