org.deri.iris.terms.concrete
Class GYear

java.lang.Object
  org.deri.iris.terms.concrete.GYear

All Implemented Interfaces:

Comparable<ITerm>, IGYear, IConcreteTerm, ITerm

public class GYear
extends Object
implements IGYear

Simple implementation of the IGYear.

This class represents a year.
ATTENTION: At the moment it is not possible to represent BC dates

$Id$

Version:

$Revision$

Author:

Richard P??ttler (richard dot poettler at deri dot at)

Constructor Summary

GYear(int year)
Creates a new year.

GYear(int year, int tzHour, int tzMinute)
Creates a new year within the given timezone.

Method Summary

int	compareTo(ITerm o)
boolean	equals(Object obj)
URI	getDatatypeIRI() Returns the fully qualified identifier for the data type corresponding to this term.
Integer	getValue() Return the wrapped type.
int	getYear() Returns the year (a gregorian calendar year).
int	hashCode()
boolean	isGround() Checks whether the term is ground (a term with no variables).
String	toCanonicalString() Returns a canonical string representation of this term.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

GYear

public GYear(int year)

Creates a new year. The zimezone will be set to GMT.

Parameters:

year - the year

GYear

public GYear(int year,
             int tzHour,
             int tzMinute)

Creates a new year within the given timezone.

Parameters:

year - the year

tzHour - the timezone hours (relative to GMT)

tzMinute - the timezone minutes (relative to GMT)

Throws:

IllegalArgumentException - if the tzHour and tzMinute wheren't both positive, or negative

Method Detail

compareTo

public int compareTo(ITerm o)

Specified by:

compareTo in interface Comparable<ITerm>

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getYear

public int getYear()

Description copied from interface: IGYear

Returns the year (a gregorian calendar year).

Specified by:

getYear in interface IGYear

Returns:

the year.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

isGround

public boolean isGround()

Description copied from interface: ITerm

Checks whether the term is ground (a term with no variables).

Specified by:

isGround in interface ITerm

Returns:

true if the term is ground, otherwise false.

getValue

public Integer getValue()

Description copied from interface: IGYear

Return the wrapped type.

Specified by:

getValue in interface IGYear

Specified by:

getValue in interface ITerm

Returns:

The term value.

getDatatypeIRI

public URI getDatatypeIRI()

Description copied from interface: IConcreteTerm

Returns the fully qualified identifier for the data type corresponding to this term. For instance, a terms representing a double data type should return the URI "http://www.w3.org/2001/XMLSchema#double".

Specified by:

getDatatypeIRI in interface IConcreteTerm

Returns:

The fully qualified identifier for the data type corresponding to this term.

toCanonicalString

public String toCanonicalString()

Description copied from interface: IConcreteTerm

Returns a canonical string representation of this term.

Specified by:

toCanonicalString in interface IConcreteTerm

Returns:

A canonical string representation of this term.