org.projog.core.predicate.builtin.io

Class Tell

java.lang.Object

org.projog.core.predicate.AbstractSingleResultPredicate

org.projog.core.predicate.builtin.io.Tell

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class Tell
extends AbstractSingleResultPredicate

tell(X) - opens a file and sets it as the current output stream.

If X refers to a handle, rather than a filename, then the current output stream is set to the stream represented by the handle.

Constructor Summary

Constructors

Constructor and Description
Tell()

Method Summary

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

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

Tell

public Tell()

Method Detail

evaluate

protected boolean evaluate(Term source)

Overrides:

evaluate in class AbstractSingleResultPredicate