/**
* Copyright 2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.bricket.plugin.genericdomain.domain;
import java.io.Serializable;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
/**
* @author Henning Teek
*/
@MappedSuperclass
public abstract class DomainObject implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
public final void setId(Long id) {
this.id = id;
}
public final Long getId() {
return id;
}
public final boolean isNew() {
return null == this.id;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
DomainObject other = (DomainObject) obj;
if (id == null) {
if (other.id != null) {
return false;
}
} else if (!id.equals(other.id)) {
return false;
}
return true;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("DomainObject [id=").append(id).append(", isNew()=").append(isNew()).append("]");
return builder.toString();
}
}