/*
* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
package com.nokia.mj.impl.utils;
/**
* JAVADOCS ARE UNDER CONSTRUCTION!!
* <p>
* Unique identifier.
*/
public class Uid
{
private String iValue = null;
/**
* Default constructor.
*/
protected Uid()
{
}
/**
* Constructor.
*/
protected Uid(String aValue)
{
iValue = aValue;
}
/**
* Creates a new Uid object from given string.
* If given string is not a valid Uid, returns null.
*/
public static Uid createUid(String aValue)
{
if (aValue == null || aValue.length() == 0)
{
return null;
}
return new Uid(aValue);
}
/**
* Returns string value for this Uid.
*/
public String getStringValue()
{
return iValue;
}
/**
* Returns a hash code value for the object.
*/
public int hashCode()
{
return iValue.hashCode();
}
/**
* Indicates whether given object is equal to this one.
*/
public boolean equals(Object aObj)
{
if (!(aObj instanceof Uid))
{
return false;
}
Uid uid = (Uid)aObj;
if (this.getStringValue().equals(uid.getStringValue()))
{
return true;
}
return false;
}
/**
* Compare this Uid to given one.
* @return a negative integer, zero, or a positive integer
* if this instance is less than, equal to, or greater than
* the given Uid.
*/
public int compareTo(Uid aUid)
{
return toString().compareTo(aUid.toString());
}
/**
* Returns string representation of this object.
*/
public String toString()
{
return getStringValue();
}
}