程序包 java.security

接口 Guard

所有已知实现类:

AllPermission, AuthPermission, BasicPermission, FilePermission, LinkPermission, LoggingPermission, NetPermission, Permission, PrivateCredentialPermission, PropertyPermission, ReflectPermission, RuntimePermission, SecurityPermission, SerializablePermission, SocketPermission, SQLPermission, SSLPermission, UnresolvedPermission

public interface Guard

This interface represents a guard, which is an object that is used to protect access to another object.

This interface contains a single method, checkGuard, with a single object argument. checkGuard is invoked (by the GuardedObject getObject method) to determine whether or not to allow access to the object.

另请参阅:

GuardedObject

方法概要

限定符和类型	方法	说明
void	checkGuard(Object object)	Determines whether or not to allow access to the guarded object object.

方法详细资料

checkGuard

void checkGuard(Object object)
         throws SecurityException

Determines whether or not to allow access to the guarded object object. Returns silently if access is allowed. Otherwise, throws a SecurityException.

参数:

object - the object being protected by the guard.

抛出:

SecurityException - if access is denied.