gnu.prolog.vm.buildins.termcreation
Class Predicate_functor

java.lang.Object
  gnu.prolog.vm.ExecuteOnlyCode
      gnu.prolog.vm.buildins.termcreation.Predicate_functor

All Implemented Interfaces:

Installable, PrologCode

public class Predicate_functor
extends ExecuteOnlyCode

prolog code

Field Summary

static IntegerTerm

zero constant used in predicate

Fields inherited from interface gnu.prolog.vm.PrologCode

FAIL, HALT, SUCCESS, SUCCESS_LAST

Constructor Summary

Predicate_functor()

Method Summary

int	execute(Interpreter interpreter, boolean backtrackMode, Term[] args) this method is used for execution of code

Methods inherited from class gnu.prolog.vm.ExecuteOnlyCode

install, uninstall

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

zero

public static final IntegerTerm zero

constant used in predicate

Constructor Detail

Predicate_functor

public Predicate_functor()

Method Detail

execute

public int execute(Interpreter interpreter,
                   boolean backtrackMode,
                   Term[] args)
            throws PrologException

Description copied from interface: PrologCode

this method is used for execution of code

Specified by:

execute in interface PrologCode

Specified by:

execute in class ExecuteOnlyCode

Parameters:

interpreter - interpreter in which context code is executed

backtrackMode - true if predicate is called on backtracking and false otherwise

args - arguments of code

Returns:

either SUCCESS, SUCCESS_LAST, or FAIL.

Throws:

PrologException