/* Copyright c 2005-2012.
* Licensed under GNU LESSER General Public License, Version 3.
* http://www.gnu.org/licenses
*/
package org.beangle.model.pojo;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.beangle.model.predicates.ValidEntityKeyPredicate;
import org.hibernate.annotations.GenericGenerator;
@MappedSuperclass
public class LongIdObject implements LongIdEntity {
private static final long serialVersionUID = -7530111699332363124L;
@Id
@GeneratedValue(generator = "table_sequence")
@GenericGenerator(name = "table_sequence", strategy = "org.beangle.model.persist.hibernate.support.TableSeqGenerator")
protected Long id;
public LongIdObject() {
super();
}
public LongIdObject(Long id) {
super();
this.id = id;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Long getIdentifier() {
return id;
}
public boolean isPersisted() {
return ValidEntityKeyPredicate.INSTANCE.evaluate(id);
}
public boolean isTransient() {
return !ValidEntityKeyPredicate.INSTANCE.evaluate(id);
}
/**
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return new HashCodeBuilder(-64900959, -454788261).append(this.id).toHashCode();
}
/**
* 比较id,如果任一方id是null,则不相等
* <p>
* 因为业务对象被CGlib或者javassist增强的原因，这里只提供一般的基于id的比较,不提供基于Class的比较。如果在存在继承结构， 请重置equals方法。
*
* @see java.lang.Object#equals(Object)
*/
public boolean equals(final Object object) {
if (!(object instanceof LongIdObject)) { return false; }
LongIdObject rhs = (LongIdObject) object;
if (null == getId() || null == rhs.getId()) { return false; }
return getId().equals(rhs.getId());
}
}