issrg.pba.rbac
Class AbsoluteValidityPeriod

java.lang.Object
  issrg.pba.rbac.SubsetCredentials
      issrg.pba.rbac.DefaultValidityPeriodBehaviour
          issrg.pba.rbac.AbsoluteValidityPeriod

All Implemented Interfaces:

Credentials, ValidityPeriod, java.lang.Cloneable

Direct Known Subclasses:

AnyTimeValidityPeriod

public class AbsoluteValidityPeriod
extends DefaultValidityPeriodBehaviour

This class represents a validity period, specified as two margins in time: the notBefore and notAfter times. The times are absolute and are input as java.util.Date objects. The notAfter can be set to time before notBefore, but such a validity period will mean "invalid time" and cause the credential to be not accepted.

Author:

A.Otenko

Field Summary

protected java.util.Date	notAfter
protected java.util.Date	notBefore

Constructor Summary

AbsoluteValidityPeriod()
This constructor creates an infinite validity period.

AbsoluteValidityPeriod(java.util.Date notBefore, java.util.Date notAfter)
This constructor creates a validity period with the margins specified.

Method Summary

java.lang.Object	clone() This method creates a copy of the credentials object.
java.util.Date	getNotAfter() This method returns the Date of NotAfter, as specified in the constructor.
java.util.Date	getNotBefore() This method returns the Date of NotBefore, as specified in the constructor.
java.lang.String	toString()

Methods inherited from class issrg.pba.rbac.DefaultValidityPeriodBehaviour

contains, intersection

Methods inherited from class issrg.pba.rbac.SubsetCredentials

equals, union

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface issrg.pba.Credentials

union

Field Detail

notBefore

protected java.util.Date notBefore

notAfter

protected java.util.Date notAfter

Constructor Detail

AbsoluteValidityPeriod

public AbsoluteValidityPeriod()

This constructor creates an infinite validity period. This is equivalent to calling AbsoluteValidityPeriod(null, null);

AbsoluteValidityPeriod

public AbsoluteValidityPeriod(java.util.Date notBefore,
                              java.util.Date notAfter)

This constructor creates a validity period with the margins specified. If a margin is null, the period is infinite in that direction.

Parameters:

notBefore - is the date and time when the period starts; if null, it existed forever

notAfter - is the date and time when the period ends; if null, it lasts forever

Method Detail

getNotBefore

public java.util.Date getNotBefore()

This method returns the Date of NotBefore, as specified in the constructor. Can be null, if the validity period exists "since time immemorial"

Returns:

the Date corresponding to the start of the validity period, or null, if infinitely valid in the past

getNotAfter

public java.util.Date getNotAfter()

This method returns the Date of NotAfter, as specified in the constructor. Can be null, if the validity period lasts forever.

Returns:

the Date corresponding to the end of the validity period, or null, if infinitely valid in the future

clone

public java.lang.Object clone()

Description copied from class: SubsetCredentials

This method creates a copy of the credentials object. Requires overriding in implementations of subclasses.

Specified by:

clone in interface Credentials

Specified by:

clone in class SubsetCredentials

Returns:

a copy of the credentials object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object