Class Member

java.lang.Object

org.projog.core.predicate.AbstractPredicateFactory

org.projog.core.predicate.builtin.list.Member

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class Member
extends AbstractPredicateFactory

member(E, L) - enumerates members of a list.

member(E, L) succeeds if E is a member of the list L. An attempt is made to retry the goal during backtracking - so it can be used to enumerate the members of a list.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private final class	Member.MemberPredicate

Constructor Summary

Constructors

Constructor	Description
Member()

Method Summary

Modifier and Type	Method	Description
protected Predicate	getPredicate(Term element, Term list)

Methods inherited from class AbstractPredicateFactory

getArithmeticOperators, getFileHandles, getKnowledgeBase, getOperands, getPredicate, getPredicate, getPredicate, getPredicate, 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

Constructor Details

Member

public Member()

Method Details

getPredicate

protected Predicate getPredicate(Term element,
 Term list)

Overrides:

getPredicate in class AbstractPredicateFactory