gnu.prolog.vm.buildins.list
Class Predicate_predsort

java.lang.Object
  gnu.prolog.vm.ExecuteOnlyCode
      gnu.prolog.vm.buildins.list.Predicate_predsort

All Implemented Interfaces:

Installable, PrologCode

public class Predicate_predsort
extends ExecuteOnlyCode

Author:

Michiel Hendriks

Nested Class Summary

static class

Predicate_predsort.CallPredComparator

Field Summary

static CompoundTermTag

COMPARE_TAG

Fields inherited from interface gnu.prolog.vm.PrologCode

FAIL, HALT, SUCCESS, SUCCESS_LAST

Constructor Summary

Predicate_predsort()

Method Summary

int	execute(Interpreter interpreter, boolean backtrackMode, Term[] args) this method is used for execution of code
protected Comparator<? super Term>	getComparator(Interpreter interpreter, Term sorter)

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

COMPARE_TAG

public static final CompoundTermTag COMPARE_TAG

Constructor Detail

Predicate_predsort

public Predicate_predsort()

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

getComparator

protected Comparator<? super Term> getComparator(Interpreter interpreter,
                                                 Term sorter)
                                          throws PrologException

Returns:

Throws:

PrologException