Compare

java.lang.Object
- org.projog.core.predicate.AbstractSingleResultPredicate
- - org.projog.core.predicate.builtin.compare.Compare

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory
```
public final class Compare
extends AbstractSingleResultPredicate
```
compare(X,Y,Z) - compares arguments.
Compares the second and third arguments.
- If second is greater than third then attempts to unify first argument with >
- If second is less than third then attempts to unify first argument with <
- If second is equal to third then attempts to unify first argument with =

- Constructor Summary
  
  Constructors
  Constructor Description
  
  Compare()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  protected boolean evaluate(Term result, Term t1, Term t2)
  - 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
- Compare
```
public Compare()
```

Method Detail

evaluate

protected boolean evaluate(Term result,
                           Term t1,
                           Term t2)

Overrides:: evaluate in class AbstractSingleResultPredicate