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

Description

SetOutput()
Method Summary

Modifier and Type

Method

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 Details
- SetOutput
  
  public SetOutput()
Method Details
- evaluate
  
  protected boolean evaluate(Term arg)
  
  Overrides:
  
  evaluate in class AbstractSingleResultPredicate