f@0: /*  
f@0:  CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool
f@0:   
f@0:  Copyright (C) 2011  Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/)
f@0: 
f@0:  This program is free software: you can redistribute it and/or modify
f@0:  it under the terms of the GNU General Public License as published by
f@0:  the Free Software Foundation, either version 3 of the License, or
f@0:  (at your option) any later version.
f@0: 
f@0:  This program is distributed in the hope that it will be useful,
f@0:  but WITHOUT ANY WARRANTY; without even the implied warranty of
f@0:  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
f@0:  GNU General Public License for more details.
f@0: 
f@0:  You should have received a copy of the GNU General Public License
f@0:  along with this program.  If not, see <http://www.gnu.org/licenses/>.
f@0: */  
f@0: 
f@0: package uk.ac.qmul.eecs.ccmi.utils;
f@0: 
f@0: /**
f@0:  * 
f@0:  * A Pair of objects.
f@0:  *
f@0:  * @param <T1> The first item type 
f@0:  * @param <T2> The second item type
f@0:  */
f@0: public class Pair<T1,T2> {
f@0: 	public Pair(T1 first, T2 second){
f@0: 		this.first = first;
f@0: 		this.second = second;
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public int hashCode() {
f@0: 		final int prime = 31;
f@0: 		int result = 1;
f@0: 		result = prime * result + ((first == null) ? 0 : first.hashCode());
f@0: 		result = prime * result + ((second == null) ? 0 : second.hashCode());
f@0: 		return result;
f@0: 	}
f@0: 
f@0: 	@Override
f@0: 	public boolean equals(Object obj) {
f@0: 		if (this == obj)
f@0: 			return true;
f@0: 		if (obj == null)
f@0: 			return false;
f@0: 		if (getClass() != obj.getClass())
f@0: 			return false;
f@0: 		@SuppressWarnings("rawtypes")
f@0: 		Pair other = (Pair) obj;
f@0: 		if (first == null) {
f@0: 			if (other.first != null)
f@0: 				return false;
f@0: 		} else if (!first.equals(other.first))
f@0: 			return false;
f@0: 		if (second == null) {
f@0: 			if (other.second != null)
f@0: 				return false;
f@0: 		} else if (!second.equals(other.second))
f@0: 			return false;
f@0: 		return true;
f@0: 	}
f@0: 
f@0: 	/**
f@0: 	 * the first item of the pair 
f@0: 	 */
f@0: 	public T1 first;
f@0: 	/**
f@0: 	 * the second item of the pair 
f@0: 	 */
f@0: 	public T2 second;
f@0: }