org.projog.core.predicate.builtin.kb

Class AddPredicateFactory

java.lang.Object

org.projog.core.predicate.AbstractSingleResultPredicate

org.projog.core.predicate.builtin.kb.AddPredicateFactory

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class AddPredicateFactory
extends AbstractSingleResultPredicate

pj_add_predicate(X,Y) - defines a Java class as a built-in predicate.

X represents the name and arity of the predicate. Y represents the full class name of an implementation of org.projog.core.PredicateFactory.

This predicate provides an easy way to configure and extend the functionality of Projog - including adding functionality not possible to define in pure Prolog syntax.

Constructor Summary

Constructors

Constructor and Description
AddPredicateFactory(KnowledgeBase kb)

Method Summary

Modifier and Type	Method and Description
protected boolean	evaluate(Term arg1, Term arg2)

Methods inherited from class org.projog.core.predicate.AbstractSingleResultPredicate

evaluate, evaluate, evaluate, evaluate, evaluate, getArithmeticOperators, getFileHandles, getKnowledgeBase, getOperands, getPredicate, getPredicates, getProjogListeners, getSpyPoints, getTermFormatter, init, isRetryable, setKnowledgeBase

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.projog.core.predicate.PredicateFactory

isAlwaysCutOnBacktrack

Constructor Detail

AddPredicateFactory

public AddPredicateFactory(KnowledgeBase kb)

Method Detail

evaluate

protected boolean evaluate(Term arg1,
                           Term arg2)

Overrides:

evaluate in class AbstractSingleResultPredicate