org.projog.core.predicate.builtin.io

Class SetOutput

java.lang.Object

org.projog.core.predicate.AbstractSingleResultPredicate

org.projog.core.predicate.builtin.io.SetOutput

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class SetOutput
extends AbstractSingleResultPredicate

set_output(X) - sets the current output.

set_output(X) sets the current output to the stream represented by X.

X will be a term returned as the third argument of open, or the atom user_input, which specifies that output is to go to the computer display.

Constructor Summary

Constructors

Constructor and Description
SetOutput()

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

SetOutput

public SetOutput()

Method Detail

evaluate

protected boolean evaluate(Term arg)

Overrides:

evaluate in class AbstractSingleResultPredicate