com.hp.hpl.jena.graph.query
Class Relation

java.lang.Object
  com.hp.hpl.jena.graph.query.PredicateBase
      com.hp.hpl.jena.graph.query.Relation

All Implemented Interfaces:

Predicate

Direct Known Subclasses:

Relation_EQ, Relation_NE

public abstract class Relation

extends PredicateBase

implements Predicate

Field Summary

Fields inherited from interface com.hp.hpl.jena.graph.query.Predicate

TRUE

Constructor Summary

Relation(Valuator L, Valuator R)
make a Relation with the given left & right operands

Method Summary

abstract boolean	evaluateBool(Domain d) see if the operands satisfy the relation
boolean	evaluateEquals(Domain d) shared code for the equality relation
Node	valueL(Domain d) evaluate the left operand against the domain _d_
Node	valueR(Domain d) evaluate the right operand against the domain _d_

Methods inherited from class com.hp.hpl.jena.graph.query.PredicateBase

and

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hp.hpl.jena.graph.query.Predicate

and

Constructor Detail

Relation

public Relation(Valuator L,
                Valuator R)

make a Relation with the given left & right operands

Method Detail

valueL

public Node valueL(Domain d)

evaluate the left operand against the domain _d_

valueR

public Node valueR(Domain d)

evaluate the right operand against the domain _d_

evaluateBool

public abstract boolean evaluateBool(Domain d)

see if the operands satisfy the relation

Specified by:

evaluateBool in interface Predicate

Specified by:

evaluateBool in class PredicateBase

evaluateEquals

public boolean evaluateEquals(Domain d)

shared code for the equality relation