1. 性别枚举类型类:Gender.java

/**
* Filename: ExportDBScript.java
* Author: qiujy
* Createtime:Nov 22, 2008
* Copyrights 2008 qjyong All rights reserved.
* EMail: [email protected]
*/
package com.qiujy.common.myusertype;

import java.io.Serializable;

/**
* 性别枚举类型
*
* @author qiujy
*/

public enum Gender implements Serializable {
Male("男", 0), Female("女", 1), Other("保密", 2);

private String name;
private value;

public String getName {
name;
}

public getValue {
value;
}

private Gender(String name, value) {
this.name = name;
this.value = value;
}

public Gender getGender( value) {
(0 value){
Male;
} (1 value){
Female;
}{
Other;
}
}
@Override
public String toString{
this.name;
}
}

2.自定义枚举映射类型类:GenderType.java

/**
* Filename: ExportDBScript.java
* Author: qiujy
* Createtime:Nov 22, 2008
* Copyrights 2008 qjyong All rights reserved.
* EMail: [email protected]
*/
package com.qiujy.common.myusertype;

import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.usertype.UserType;

/**
* 自定义hibernate性别枚举映射类型
*
* @author qiujy
*/
public GenderType implements UserType {

/** 告诉Hibernate要使用什么SQL列类型生成DDL */
public sqlTypes {
{Hibernate.SHORT.sqlType};
}

/** 告诉Hibernate这个UserType用来映射数据类型这里是Gender类 */
@SuppressWarnings("unchecked")
public Class edClass {
Gender.;
}

/** 告诉hibernate这个类型是不可变有微小性能优化 */
public boolean isMutable {
false;
}

/**这是用于Hibernate缓存Cache生成快照由于Gender是不可变直接返回就好了*/
public Object deepCopy(Object arg0) throws HibernateException {
arg0;
}

/** hibernate把这个数据放入 2级缓存Cache时要思路方法 */
public Serializable disassemble(Object arg0) throws HibernateException {
(Serializable)arg0;
}

/** 从 2级缓存Cache中取这个对象数据时要思路方法 */
public Object assemble(Serializable arg0, Object arg1)
throws HibernateException {
arg0;
}

/** 处理脱管对象状态合并*/
public Object replace(Object original, Object target, Object owner)
throws HibernateException {
original;
}

public boolean equals(Object x, Object y) throws HibernateException {
x y;
}

public hashCode(Object o) throws HibernateException {
o.hashCode;
}

/** 从JDBCResultSet读取属性值这个思路方法是在从数据库查询数据时用到 */
public Object nullSafeGet(ResultSet rs, String names, Object owner)
throws HibernateException, SQLException {
value = rs.getInt(names[0]);
Gender.getGender(value);
}

/** 将属性值设置到PreparedStatement */
public void nullSafeSet(PreparedStatement ps, Object value, index)
throws HibernateException, SQLException {
(value null) {
ps.Int(index, Hibernate.SHORT.sqlType);
} {
ps.Int(index, ((Gender) value).getValue);
}
}
}

3.在映射文件中使用:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
< name="com.qiujy.do.Account" table="account">
<id name="id" column="id">
<generator ="native"/>
</id>
<property name="loginname" column="login_name"/>
<property name="pwd"/>
<property name="gender" type="com.qiujy.common.myusertype.GenderType"/>
<property name="registedTime" type="timestamp" column="registed_time"/>
</>
</hibernate-mapping>