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	Description
IsNumber()

Method Summary

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

Methods inherited from class AbstractSingleResultPredicate

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

Methods inherited from class Object

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

Methods inherited from interface PredicateFactory

isAlwaysCutOnBacktrack, preprocess

Constructor Details

IsNumber

public IsNumber()

Method Details

evaluate

protected boolean evaluate(Term arg)

Overrides:

evaluate in class AbstractSingleResultPredicate