A GuardedObject is an object that is used to protect access to another object.
A GuardedObject encapsulates a target object and a Guard object,
such that access to the target object is possible
only if the Guard object allows it.
Once an object is encapsulated by a GuardedObject,
access to that object is controlled by the
method, which invokes the
checkGuard method on the Guard object that is
guarding access. If access is not allowed,
an exception is thrown.
Public Constructor Summary
Public Method Summary
Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.
Inherited Method Summary
Creates and returns a copy of this
Invoked when the garbage collector has detected that this instance is no longer reachable.
Returns an integer hash code for this object.
Causes a thread which is waiting on this object's monitor (by means of calling one of the
Causes all threads which are waiting on this object's monitor (by means of calling one of the
Returns a string containing a concise, human-readable description of this object.
wait(long timeout, int nanos)
Causes the calling thread to wait until another thread calls the
Constructs a GuardedObject using the specified object and guard. If the Guard object is null, then no restrictions will be placed on who can access the object.
|object||the object to be guarded.|
|guard||the Guard object that guards access to the object.|