public interface Guard
该接口表示一个保护,它是一个用于保护对另一个对象的访问的对象。
此接口包含一个单一的方法, checkGuard ,具有单个object参数。 checkGuard被调用(由GuardedObject getObject方法)来确定是否允许访问该对象。
GuardedObject
| Modifier and Type | Method and Description |
|---|---|
void |
checkGuard(Object object)
确定是否允许访问被保护对象
object 。
|
void checkGuard(Object object) throws SecurityException
object 。
如果允许访问,则默认返回。
否则,抛出SecurityException。
object - 被保护者保护的对象。
SecurityException - if access is denied.
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