org.deri.iris.builtins
Class GreaterBuiltin

java.lang.Object
  org.deri.iris.builtins.AbstractBuiltin
      org.deri.iris.builtins.BooleanBuiltin
          org.deri.iris.builtins.GreaterBuiltin

All Implemented Interfaces:

Comparable<IAtom>, IAtom, IBuiltinAtom

Direct Known Subclasses:

BooleanGreaterBuiltin, DateGreaterBuiltin, DateTimeGreaterBuiltin, DayTimeDurationGreaterBuiltin, NumericGreaterBuiltin, TimeGreaterBuiltin, YearMonthDurationGreaterBuiltin

public class GreaterBuiltin
extends BooleanBuiltin

Built-in to compare two terms and determine which one is bigger.

$Id: GreaterBuiltin.java,v 1.15 2007-10-12 12:40:58 bazbishop237 Exp $

Version:

$Revision: 1.15 $

Author:

Richard P??ttler, richard dot poettler at deri dot org

Field Summary

Fields inherited from class org.deri.iris.builtins.AbstractBuiltin

EMPTY_TERM

Constructor Summary

protected	GreaterBuiltin(IPredicate predicate, ITerm... terms) Construct a new GreaterBuiltin for the specific predicate and terms.
	GreaterBuiltin(ITerm... t) Constructs a builtin.

Method Summary

protected boolean

computeResult(ITerm[] terms) Compute the result of the comparison.

Methods inherited from class org.deri.iris.builtins.BooleanBuiltin

evaluateTerms

Methods inherited from class org.deri.iris.builtins.AbstractBuiltin

compareTo, equals, evaluate, getPredicate, getTuple, hashCode, isBuiltin, isGround, maxUnknownVariables, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GreaterBuiltin

protected GreaterBuiltin(IPredicate predicate,
                         ITerm... terms)

Construct a new GreaterBuiltin for the specific predicate and terms.

Parameters:

predicate - The predicate of the built-in.

terms - The terms.

Throws:

NullPointerException - If the predicate or one of the terms is null.

IllegalArgumentException - If the length of the terms and the arity of the predicate do not match.

GreaterBuiltin

public GreaterBuiltin(ITerm... t)

Constructs a builtin. Two terms must be passed to the constructor, otherwise an exception will be thrown.

Parameters:

terms - The terms.

Throws:

NullPointerException - If the predicate or one of the terms is null.

IllegalArgumentException - If the length of the terms and the arity of the predicate do not match.

Method Detail

computeResult

protected boolean computeResult(ITerm[] terms)

Description copied from class: BooleanBuiltin

Compute the result of the comparison.

Specified by:

computeResult in class BooleanBuiltin

Parameters:

terms - The terms

Returns:

The result of the comparison.