Class WriteCanonical

java.lang.Object

org.projog.core.predicate.AbstractSingleResultPredicate

org.projog.core.predicate.builtin.io.WriteCanonical

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class WriteCanonical
extends AbstractSingleResultPredicate

write_canonical(X) - writes a term to the output stream.

Writes the term X to the current output stream. write_canonical does not take account of current operator declarations - thus any structures are printed out with the functor first and the arguments in brackets.

Succeeds only once.

Constructor Summary

Constructors

Constructor	Description
WriteCanonical()

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

WriteCanonical

public WriteCanonical()

Method Details

evaluate

protected boolean evaluate(Term arg)

Overrides:

evaluate in class AbstractSingleResultPredicate