org.hibernate.envers.tools.Pair Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, 2013, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.envers.tools;
/**
* A pair of objects.
*
* @param
* @param
*
* @author Adam Warski ([email protected])
*/
public class Pair {
private final T1 obj1;
private final T2 obj2;
public Pair(T1 obj1, T2 obj2) {
this.obj1 = obj1;
this.obj2 = obj2;
}
public T1 getFirst() {
return obj1;
}
public T2 getSecond() {
return obj2;
}
@Override
public boolean equals(Object o) {
if ( this == o ) {
return true;
}
if ( !(o instanceof Pair) ) {
return false;
}
final Pair pair = (Pair) o;
if ( obj1 != null ? !obj1.equals( pair.obj1 ) : pair.obj1 != null ) {
return false;
}
if ( obj2 != null ? !obj2.equals( pair.obj2 ) : pair.obj2 != null ) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result;
result = (obj1 != null ? obj1.hashCode() : 0);
result = 31 * result + (obj2 != null ? obj2.hashCode() : 0);
return result;
}
public static Pair make(T1 obj1, T2 obj2) {
return new Pair( obj1, obj2 );
}
}