AddPredicateFactory

java.lang.Object
- org.projog.core.predicate.AbstractSingleResultPredicate
- - org.projog.core.predicate.builtin.kb.AddPredicateFactory

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory
```
public final class AddPredicateFactory
extends AbstractSingleResultPredicate
```
pj_add_predicate(X,Y) - defines a Java class as a built-in predicate.
X represents the name and arity of the predicate. Y represents the full class name of an implementation of org.projog.core.PredicateFactory.

This predicate provides an easy way to configure and extend the functionality of Projog - including adding functionality not possible to define in pure Prolog syntax.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  AddPredicateFactory(KnowledgeBase kb)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method 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

AddPredicateFactory

public AddPredicateFactory(KnowledgeBase kb)

Method Detail

evaluate

protected boolean evaluate(Term arg1,
                           Term arg2)

Overrides:: evaluate in class AbstractSingleResultPredicate