java位运算权限设计

public class Auth {
    public static int insertAuth = 1 << 0;//增权限
    public static int updateAuth = 1 << 1;//修改权限
    public static int queryAuth = 1 << 2;//查询权限
    public static int deleteAuth = 1 << 3;//删除权限
    public static int currentAuth;
    //初始化权限
    public static void initAuth(int value) {
        currentAuth = currentAuth | value;
    }
    //添加权限
    public static void addAuth(int value) {
        currentAuth = currentAuth | value;
    }
    //删除权限
    public static void delAuth(int value) {
        currentAuth &= ~value;
    }
    //判断是否有权限
    public static boolean isAuth(int value) {
        return (currentAuth | value) == currentAuth;
    }
}

int value=Auth.insertAuth|Auth.deleteAuth;
initAuth(value);
System.out.println(Auth.isAuth(Auth.insertAuth));
delAuth(value);
System.out.println(Auth.isAuth(Auth.insertAuth));