لطفا منتظر باشید ...
This class uses a Guard
object to guard against unauthorized access to an arbitrary
encapsulated object. Create a GuardedObject by
specifying an object and a Guard for it. The
getObject( )
method calls the checkGuard( ) method of the
Guard to determine whether access to the object
should be allowed. If access is allowed, getObject(
) returns the encapsulated object. Otherwise, it throws a
java.lang.SecurityException.The Guard object used by a
GuardedObject is often a
Permission. In this case, access to the guarded
object is granted only if the calling code is granted the specified
permission by the current security policy.
Figure 14-11. java.security.GuardedObject
public class GuardedObject implements Serializable {
// Public Constructors
public GuardedObject (Object object , Guard guard );
// Public Instance Methods
public Object getObject ( ) throws SecurityException;
}