org.projog.core.predicate.builtin.compare

Class NotStrictEquality

java.lang.Object

org.projog.core.predicate.AbstractSingleResultPredicate

org.projog.core.predicate.builtin.compare.NotStrictEquality

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class NotStrictEquality
extends AbstractSingleResultPredicate

X\==Y - a strict equality test.

If X cannot be matched with Y the goal succeeds else the goal fails. A X\==Y goal will only consider an uninstantiated variable to be equal to another uninstantiated variable that is already sharing with it.

Constructor Summary

Constructors

Constructor and Description
NotStrictEquality()

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

NotStrictEquality

public NotStrictEquality()

Method Detail

evaluate

protected boolean evaluate(Term arg1,
                           Term arg2)

Overrides:

evaluate in class AbstractSingleResultPredicate