org.projog.core.predicate.builtin.io

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 and Description
WriteCanonical()

Method Summary

Modifier and Type	Method and Description
protected boolean	evaluate(Term arg)

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

WriteCanonical

public WriteCanonical()

Method Detail

evaluate

protected boolean evaluate(Term arg)

Overrides:

evaluate in class AbstractSingleResultPredicate