互联网数功能位，表扩展（flagBit,feature）

<select id="queryRegThreeDaysNotCharge" parameterType="map" resultMap="BaseResultMap">
		SELECT id FROM member m
		where m.register_time >= to_date(concat(to_char(sysdate-3,'yyyy-mm-dd'),' 11:00:00'),'yyyy-mm-dd hh24:mi:ss')
		<![CDATA[
			and m.register_time < to_date(concat(to_char(sysdate-2,'yyyy-mm-dd'),' 11:00:00'),'yyyy-mm-dd hh24:mi:ss')
		]]> 
		and  BITAND(m.flag_bit,${memberFlagBit}) = 0
	</select>

<update id="addMemberFlagBit" parameterType="map">
        update member set flag_bit = (flag_bit + ${flagBit}) - bitand(flag_bit, ${flagBit}) where id = #{memberId}
    </update>
    <update id="clearMemberFlagBit" parameterType="map">
        update member set flag_bit = bitand(flag_bit, ${flagBit}) where id = #{memberId}
    </update>

引用

package com.xxx.dao.domain;

public interface ExtensionFeatures {
	String getFeatures();

	void setFeatures(String features);

	int getFeaturesVersion();

	void setupFeature(String columnName, String value);

	void setupFeature(String columnName, Object value);

	void removeFeature(String columnName);

	String getFeature(String columnName);

	<T> T getFeature(String columnName, Class<T> clz);
}

package com.xxx.dao.domain;

public interface ExtensionFlagBit {
	long getFlagBit();

	/**
	 * flagBit的乐观锁字段，最好要有对应的数据表字段，要不代码/sql配置写得很麻烦。
	 * 
	 * 假设flagVersion没有数据表字段，而是用flagBit的旧值作为乐观锁：
	 * DO中有flagVersion存放从数据库刚取出时的值，
	 * 那就要setFlagBit()后手动调用setFlageVersion()，在setFlagBit()里隐藏地调用setFlagVersion()是不好的
	 * 或着mybatis中resultMap要配置多一行将同字段内容放进两个setter中。
	 * 
	 * 如果取单条要手动调用setFlagVersion()，在取出是列表时，要在manager中手动加个循环手动setFlagVersion()
	 * 
	 * 即使在mybatis中resultMap配置了多一行将同字段内容放进两个setter中，因为都是用自身的值作乐观锁，
	 * 处理不了超高频率并发交替改变这个bit的情形。
	 * 彩票行业比一些行业在这里多了一个乐观锁字段，因为我们行业会在"跟单"这业务领域在同一记录上的并发比较常见。
	 * 
	 */
	int getFlagVersion();
}

package com.xxx.dao.domain;

/**
 * <ul>
 * <li>某个设置如果不用于where条件，选用flagBit和feature都行</li>
 * <li>如果用于where条件，选用flagBit，用于where条件时用bitand()/bitor()/bitxor()函数</li>
 * <li>如果是值选取比较少，比如1~4，可以选用flagBit,或4个bit内的组合能比较对应</li>
 * <li>如果值的范围可能比较扩充，可用json表达的features</li>
 * </ul>
 * 
 * @author zhoufeng
 *
 */
public interface ExtensionField extends ExtensionFlagBit, ExtensionFeatures {

}

package com.xxxpiao.common.entity.member;

import java.util.Calendar;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Enumerated;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.SequenceGenerator;
import javax.persistence.Transient;

import org.hibernate.annotations.Type;

import com.xxx.dao.domain.ExtensionField;
import com.xxx.dao.domain.HasLoadedAttach;
import com.xxx.dao.util.HasLoadedAttachUtil;
import com.xxx.member.common.constant.MemberHasLoadedAttachBit;
import com.xxxpiao.common.entity.BaseEntity;
import com.xxxpiao.common.entity.enumerated.BindBankType;
import com.xxxpiao.common.entity.enumerated.CertType;
import com.xxxpiao.common.entity.enumerated.MemberStatus;
import com.xxxpiao.common.entity.enumerated.SellClient;
import com.xxxpiao.common.entity.enumerated.Sex;
import com.xxxpiao.common.entity.enumerated.ThirdType;
import com.xxxpiao.common.service.vo.RegisterType;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.parser.Feature;
import com.alibaba.fastjson.serializer.SerializerFeature;

/**
 * 网站客户
 * 
 * @author yaya
 * 
 */
@Entity
@org.hibernate.annotations.Entity(dynamicUpdate = true)
@SequenceGenerator(name = "SEQ_MEMBER", sequenceName = "SEQ_MEMBER", allocationSize = 1, initialValue = 1)
public class Member extends BaseEntity implements HasLoadedAttach, ExtensionField {
	private static final long serialVersionUID = 6014921986862506261L;

	@Id
	@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_MEMBER")
	private Long id;

	@Column(nullable = false, unique = true)
	private String account;

	/** 昵称(屏蔽手机号,默认跟帐户名相同) */
	@Column(nullable = false)
	private String nickname;

	@Column(nullable = false)
	private String password;

	/** 联系电话 */
	@Column(name = "phone")
	private String phone;

	/** 电邮地址 */
	private String email;

	/** 用户状态 (0-正常,1-关闭) */
	@Enumerated
	@Column(nullable = false)
	private MemberStatus status = MemberStatus.ENABLE;

	/** 注册时间 */
	@Column(nullable = false)
	private Calendar registerTime;

	/** 来源客户端 */
	@Enumerated
	@Column(nullable = false)
	private SellClient sellClient;

	/** 市场渠道 */
	@ManyToOne(fetch = FetchType.LAZY)
	@JoinColumn(name = "sell_channel", nullable = false)
	private MemberMarketChannel sellChannel;

	/** 证件类型 (0-身份证,1-军官证 ,2-护照) */
	@Enumerated
	private CertType certType;

	/** 证件号码 */
	private String certNo;

	/** */
	private Calendar lastLoginTime;

	/** */
	private String name;

	/** */
	private Calendar birthday;

	/** 性别 (0-男,1-女) */
	@Enumerated
	private Sex sex;

	/** 用户所在地区 */
	private Long areaId;

	/** IM */
	private String im;

	/** 提款银行ID */
	private Long bankId;

	/** 开户行全称 */
	private String bankName;

	/** 银行帐号 */
	private String bankCardNo;

	/** 消费级别 */
	private int userLevel = 0;

	/** 头衔 */
	private String title;

	/** 推荐人 */
	private String recoMember;

	/** 用户资料完整度(0-快速注册,1-完整注册) */
	@Column(name = "INFO_FULL_STATUS")
	private int infoFullStatus;

	@Type(type = "thirdType")
	private ThirdType thirdType = ThirdType.LOCAL;

	/** 用户在第三方系统的标识,如在支付宝的标识,一般会在共享注册时设置 */
	private String thirdId;
	
	/** 用户是本站注册的，但通过第三方绑定登陆的，有这个信息*/
	private MemberThirdLogin thirdLogin;
	
	/** 注册类型，暂时不保存到数据库中 */
	@Transient
	private RegisterType registerType;

	/** 用户绑定类型 */
	@Type(type = "bindBankType")
	private BindBankType bindBankType = BindBankType.NORMAL;

	/** 用户绑定银行卡信息 **/
	private String bindBankInfo;

	/** 会员信息更新时间 */
	private Calendar updateTime = Calendar.getInstance();

	/** 用户提款手机号码绑定 */
	private String getMoneyPhone;
	/**
	 * 出生月日
	 */
	private String birthdayMmdd;
	
	@Transient
	private long attachBit;

	private Long flagBit = 0L;

	private Integer flagVersion = 0;

	private JSONObject features = new JSONObject();

	private Integer featuresVersion = 0;

	public Member() {

	}

	public Member(Long id) {
		this.id = id;
	}

	/**
	 * 快速注册用户构造方法
	 * 
	 * @param account
	 * @param password
	 * @param sellClient
	 * @param sellChannel
	 */
	public Member(String account, String password, SellClient sellClient, MemberMarketChannel sellChannel) {
		this.account = account;
		this.nickname = account;
		this.password = password;
		this.registerTime = Calendar.getInstance();
		this.sellClient = sellClient;
		this.sellChannel = sellChannel;
	}

	public Member(String account, String password) {
		this.account = account;
		this.password = password;
	}
	
	@Override
	public Long getId() {
		return id;
	}

	public String getAccount() {
		return account;
	}

	public void setAccount(String account) {
		this.account = account;
	}

	public String getNickname() {
		return nickname;
	}

	public void setNickname(String nickname) {
		this.nickname = nickname;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public String getPhone() {
		return phone;
	}

	public void setPhone(String phone) {
		this.phone = phone;
	}

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public MemberStatus getStatus() {
		return status;
	}

	public void setStatus(MemberStatus status) {
		this.status = status;
	}

	public Calendar getRegisterTime() {
		return registerTime;
	}

	public void setRegisterTime(Calendar registerTime) {
		this.registerTime = registerTime;
	}

	public SellClient getSellClient() {
		return sellClient;
	}

	public void setSellClient(SellClient sellClient) {
		this.sellClient = sellClient;
	}

	public MemberMarketChannel getSellChannel() {
		return sellChannel;
	}

	public void setSellChannel(MemberMarketChannel sellChannel) {
		this.sellChannel = sellChannel;
		addAttachFlag(MemberHasLoadedAttachBit.sellChannel);
	}

	public void setSellChannelId(Long sellChannel) {
		this.sellChannel = new MemberMarketChannel(sellChannel);
		removeAttachFlag(MemberHasLoadedAttachBit.sellChannel);
	}

	public CertType getCertType() {
		return certType;
	}

	public void setCertType(CertType certType) {
		this.certType = certType;
	}

	public String getCertNo() {
		return certNo;
	}

	public void setCertNo(String certNo) {
		this.certNo = certNo;
	}

	public Calendar getLastLoginTime() {
		return lastLoginTime;
	}

	public void setLastLoginTime(Calendar lastLoginTime) {
		this.lastLoginTime = lastLoginTime;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		if(name!=null){
			this.name = name.trim();
		}else{
			this.name = null;
		}
	}

	public Calendar getBirthday() {
		return birthday;
	}

	public void setBirthday(Calendar birthday) {
		this.birthday = birthday;
	}

	public Sex getSex() {
		return sex;
	}

	public void setSex(Sex sex) {
		this.sex = sex;
	}

	public Long getAreaId() {
		return areaId;
	}

	public void setAreaId(Long areaId) {
		this.areaId = areaId;
	}

	public String getIm() {
		return im;
	}

	public void setIm(String im) {
		this.im = im;
	}

	public Long getBankId() {
		return bankId;
	}

	public void setBankId(Long bankId) {
		this.bankId = bankId;
	}

	public String getBankName() {
		return bankName;
	}

	public void setBankName(String bankName) {
		this.bankName = bankName;
	}

	public String getBankCardNo() {
		return bankCardNo;
	}

	public void setBankCardNo(String bankCardNo) {
		this.bankCardNo = bankCardNo;
	}

	public int getUserLevel() {
		return userLevel;
	}

	public void setUserLevel(int userLevel) {
		this.userLevel = userLevel;
	}

	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public String getRecoMember() {
		return recoMember;
	}

	public void setRecoMember(String recoMember) {
		this.recoMember = recoMember;
	}

	public int getInfoFullStatus() {
		if(this.name!=null && this.name.length()>0 &&
				this.phone!=null && this.phone.length()>0 &&
				this.certNo!=null && this.certNo.length()>0){
			return 1;//完善资料
		}
		return infoFullStatus;
	}

	public void setInfoFullStatus(int infoFullStatus) {
		this.infoFullStatus = infoFullStatus;
	}

	public String getThirdId() {
		return thirdId;
	}

	public void setThirdId(String thirdId) {
		this.thirdId = thirdId;
	}
	
	public MemberThirdLogin getThirdLogin() {
		return thirdLogin;
	}

	public void setThirdLogin(MemberThirdLogin thirdLogin) {
		this.thirdLogin = thirdLogin;
		this.addAttachFlag(MemberHasLoadedAttachBit.thirdLogin);
	}

	public void setId(Long id) {
		this.id = id;
	}

	public ThirdType getThirdType() {
		return thirdType;
	}

	public void setThirdType(ThirdType thirdType) {
		this.thirdType = thirdType;
	}

	public RegisterType getRegisterType() {
		return registerType;
	}

	public void setRegisterType(RegisterType registerType) {
		this.registerType = registerType;
	}

	public BindBankType getBindBankType() {
		return bindBankType;
	}

	public void setBindBankType(BindBankType bindBankType) {
		this.bindBankType = bindBankType;
	}

	public String getBindBankInfo() {
		return bindBankInfo;
	}

	public void setBindBankInfo(String bindBankInfo) {
		this.bindBankInfo = bindBankInfo;
	}

	public Calendar getUpdateTime() {
		return updateTime;
	}

	public void setUpdateTime(Calendar updateTime) {
		this.updateTime = updateTime;
	}

	public String getGetMoneyPhone() {
		return getMoneyPhone;
	}

	public void setGetMoneyPhone(String getMoneyPhone) {
		this.getMoneyPhone = getMoneyPhone;
	}
	
	@Override
	public boolean hasAttachLoaded(long bitForPart) {
		return HasLoadedAttachUtil.hasAttachLoaded(attachBit, bitForPart);
	}

	private void removeAttachFlag(long flagBit) {
		this.attachBit &= flagBit ^ Long.MAX_VALUE;
	}

	private void addAttachFlag(long flagBit) {
		this.attachBit |= flagBit;
	}

	@Override
	public long getFlagBit() {
		return this.flagBit == null ? 0 : flagBit;
	}

	@Override
	public int getFlagVersion() {
		return this.flagVersion == null ? 0 : flagVersion;
	}

	@Override
	public String getFeatures() {
		return JSON.toJSONString(features,SerializerFeature.UseISO8601DateFormat);
	}

	@Override
	public int getFeaturesVersion() {
		return this.featuresVersion == null ? 0 : featuresVersion;
	}

	@Override
	public void setupFeature(String columnName, String value) {
		features.put(columnName, value);
	}

	@Override
	public void setupFeature(String columnName, Object value) {
		features.put(columnName, value);
	}

	@Override
	public void removeFeature(String columnName) {
		features.remove(columnName);
	}

	@Override
	public String getFeature(String columnName) {
		return features.getString(columnName);
	}

	@Override
	public <T> T getFeature(String columnName, Class<T> clz) {
		return features.getObject(columnName, clz);
	}

	public void addFlagBit(Long flagBit) {
		this.flagBit |= flagBit.longValue();
	}
	public void removeFlagBit(long flagBit) {
		this.flagBit &= flagBit ^ Long.MAX_VALUE;
	}
	public void setFlagBit(Long flagBit) {
		this.flagBit = flagBit == null ? 0 : flagBit;
	}

	public void setFeatures(String features) {
		this.features = JSONObject.parseObject(features,Feature.AllowISO8601DateFormat);
	}

	public void setFlagVersion(Integer flagVersion) {
		this.flagVersion = flagVersion == null ? 0 : flagVersion;
	}

	public void setFeaturesVersion(Integer featuresVersion) {
		this.featuresVersion = featuresVersion == null ? 0 : featuresVersion;
	}

	public String getBirthdayMmdd() {
		return birthdayMmdd;
	}

	public void setBirthdayMmdd(String birthdayMmdd) {
		this.birthdayMmdd = birthdayMmdd;
	}
	
}

引用

http://blog.csdn.net/hengyunabc/article/details/34623957