зеркало из https://github.com/mozilla/pjs.git
54 строки
2.2 KiB
Java
54 строки
2.2 KiB
Java
/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License
|
|
* Version 1.0 (the "License"); you may not use this file except in
|
|
* compliance with the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS"
|
|
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
|
* the License for the specific language governing rights and limitations
|
|
* under the License.
|
|
*
|
|
* The Original Code is the Grendel mail/news client.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape Communications
|
|
* Corporation. Portions created by Netscape are Copyright (C) 1997
|
|
* Netscape Communications Corporation. All Rights Reserved.
|
|
*
|
|
* Created: Mauro Botelho <mabotelh@email.com>, 20 Mar 1999.
|
|
*/
|
|
|
|
package grendel.storage.mdb;
|
|
|
|
/** nsIMdbObject: base class for all message db class interfaces
|
|
**
|
|
** factory: all nsIMdbObjects from the same code suite have the same factory
|
|
**
|
|
** refcounting: both strong and weak references, to ensure strong refs are
|
|
** acyclic, while weak refs can cause cycles. CloseMdbObject() is
|
|
** called when (strong) use counts hit zero, but clients can call this close
|
|
** method early for some reason, if absolutely necessary even though it will
|
|
** thwart the other uses of the same object. Note that implementations must
|
|
** cope with close methods being called arbitrary numbers of times. The COM
|
|
** calls to AddRef() and release ref map directly to strong use ref calls,
|
|
** but the total ref count for COM objects is the sum of weak & strong refs.
|
|
*/
|
|
public interface nsIMdbObject { // msg db base class
|
|
|
|
// { ===== begin nsIMdbObject methods =====
|
|
|
|
// { ----- begin attribute methods -----
|
|
public boolean IsFrozenMdbObject(nsIMdbEnv ev);
|
|
// same as nsIMdbPort::GetIsPortReadonly() when this object is inside a port.
|
|
// } ----- end attribute methods -----
|
|
|
|
// { ----- begin factory methods -----
|
|
public nsIMdbFactory GetMdbFactory(nsIMdbEnv ev);
|
|
// } ----- end factory methods -----
|
|
|
|
public int CloseMdbObject(nsIMdbEnv ev); // called at strong refs zero
|
|
public boolean IsOpenMdbObject(nsIMdbEnv ev);
|
|
// } ----- end ref counting -----
|
|
}
|