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InterfaceBase
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IUserService.php
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IUserService.php
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<?php
namespace
DesignPatterns
\
InterfaceBase
;
interface
IUserService
{
public
function
register
(
$
cellPhone
,
$
password
);
public
function
login
(
$
cellphone
,
$
password
);
public
function
getUserInfoById
(
$
id
);
}
//如果我们这个时候想要实现删除用户的功能,这个时候我们该怎么做呢?
//你也许会说,在IserService方法中增加deleteUserById方法
//这样是可以解决问题,但是也隐藏了一些安全隐患
//删除用户是一个非常慎重的操作,我们希望只有通过后台管理系统,
//有权限的用户才能操作,如果我们将它放在userService中,
//那么所有使用userService类的接口都有可能被其他业务系统使用,
//可能导致误删除用户的情况存在。
interface
IUserRestrictService
{
public
function
deleteUserById
(
$
id
);
}
//正确的做法是,我们需要将删除接口的功能单独放在另外一个接口中,
//使用接口隔离来限制部分接口只能单独被所对应的调用者使用。
//而不是强迫其他调用者也依赖这部分不会被调用到的接口功能
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