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/**
* This file is part of xss-jpa.
*
* Copyright 2012 Sebastian Schmelzer
* http://xss.nu/
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*
*/
package nu.xss.jpa.entity;
import javax.persistence.MappedSuperclass;
/**
* The Class AbstractEntity.
*
* @param <K>
* the key type
*/
@MappedSuperclass
public abstract class AbstractEntity<K> implements TypedEntity<K> {
/** The Constant serialVersionUID. */
private static final long serialVersionUID = 1L;
/**
* Instantiates a new abstract entity.
*/
public AbstractEntity() {
// NOOP
}
/**
* Instantiates a new abstract entity.
*
* @param id
* the id
*/
public AbstractEntity(final K id) {
this.setId(id);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ (this.getId() == null ? 0 : this.getId().hashCode());
return result;
}
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (this.getClass() != obj.getClass()) {
return false;
}
final AbstractEntity<?> other = (AbstractEntity<?>) obj;
if (this.getId() == null) {
if (other.getId() != null) {
return false;
}
} else if (!this.getId().equals(other.getId())) {
return false;
}
return true;
}
}
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