org.projog.core.predicate.builtin.compound

Class Conjunction

java.lang.Object

org.projog.core.predicate.AbstractPredicateFactory

org.projog.core.predicate.builtin.compound.Conjunction

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory, PreprocessablePredicateFactory

public final class Conjunction
extends AbstractPredicateFactory
implements PreprocessablePredicateFactory

X,Y - conjunction.

X,Y specifies a conjunction of goals. X,Y succeeds if X succeeds and Y succeeds. If X succeeds and Y fails then an attempt is made to re-satisfy X. If X fails the entire conjunction fails.

Constructor Summary

Constructors

Constructor and Description
Conjunction()

Method Summary

Modifier and Type	Method and Description
protected Predicate	getPredicate(Term arg1, Term arg2)
PredicateFactory	preprocess(Term term)

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

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

getPredicate, isAlwaysCutOnBacktrack, isRetryable

Constructor Detail

Conjunction

public Conjunction()

Method Detail

getPredicate

protected Predicate getPredicate(Term arg1,
                                 Term arg2)

Overrides:

getPredicate in class AbstractPredicateFactory

preprocess

public PredicateFactory preprocess(Term term)

Specified by:

preprocess in interface PreprocessablePredicateFactory