/*
* Copyright (C) 2012, Katy Hilgenberg.
* Special acknowledgments to: Knowledge & Data Engineering Group, University of Kassel (http://www.kde.cs.uni-kassel.de).
* Contact: sdcf@cs.uni-kassel.de
*
* This file is part of the SDCFramework (Sensor Data Collection Framework) project.
*
* The SDCFramework is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The SDCFramework is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SDCFramework. If not, see <http://www.gnu.org/licenses/>.
*/
package de.unikassel.android.sdcframework.util;
/**
* A static utility class providing functions for object comnparision.
*
* @author Katy Hilgenberg
*
*/
public final class ObjectUtils
{
/**
* Test method for the equivalence of two objects which does allow for both
* objects being null.
*
* @param o1
* first object
* @param o2
* second object
* @return true if equal pointers or equal values
*/
public static final boolean equals( Object o1, Object o2 )
{
if ( o1 != null && o2 != null )
{
// both objects are initialized return comparison value
return o1.equals( o2 );
}
// at least one object is null -> return true if both are null
return o1 == o2;
}
}