org.projog.core.predicate.builtin.classify

Class IsNumber

java.lang.Object

org.projog.core.predicate.AbstractSingleResultPredicate

org.projog.core.predicate.builtin.classify.IsNumber

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class IsNumber
extends AbstractSingleResultPredicate

number(X) - checks that a term is numeric.

number(X) succeeds if X currently stands for a number.

Constructor Summary

Constructors

Constructor and Description
IsNumber()

Method Summary

Modifier and Type	Method and Description
protected boolean	evaluate(Term arg)

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

IsNumber

public IsNumber()

Method Detail

evaluate

protected boolean evaluate(Term arg)

Overrides:

evaluate in class AbstractSingleResultPredicate