Software-module dynamic loader, a software-module dynamic loading method and a medium storing the software-module dynamic loading method

• US 6,675,381 B1
• Filed: 08/11/2000
• Issued: 01/06/2004
• Est. Priority Date: 01/20/2000
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Yamaguchi, Tomohisa
• Primary Examiner(s): ZHEN, WEI Y
• Application Number:
  US09/635,795
• Time in Patent Office: 1,243 Days
• Field of Search: 717/162-178, 717/116, 707/203, 709/202, 709/203, 709/331-332, 713/2
• US Class Current: 717/168
• CPC Class Codes: G06F 9/445 Program loading or initiating bootstrapping G06F9/4401; security arrangements for program loading or initiating G06F21/57

Abstract

As a program configuration, a step of requesting a basic side to change an application class as an application module and a core class for changing the application class to a new version by themselves is provided in them. In a platform side for loading each of programs, a sub-core class loader for loading a new version based on a request for changing is provided. In a program of the base class in which the sub-core class loader is provided, a step of starting an operation of the application after loading the new version is provided.

Claims

1. A software-module dynamic loader, to be stored in a computer-readable medium, for storing an application class and an application class loader upon a platform comprising:

a sub-core class loader, generated from a base class for loading a new version of both the application class and the application class loader, both generated from a core class that is generated by said base class, based on a load demanding step, wherein the platform is working and,

wherein the one of the application class and the application class loader demands loading the new version to the sub-core class loader.

2. The software-module dynamic loader according to claim 1 further comprising a memory for the new version of the one of the application class and the application class loader, wherein the memory stores before the loading.

3. The software-module dynamic loader according to claim 1 further comprising an interface to a network system through which the new version of the one of the application class and the application class loader is sent.

4. A software-module dynamic loading method for storing an application class and an application class loader upon a platform comprising:

load demanding of loading one of the application class and the application class loader in the application class to a sub-core class loader;

loading a new version of both the application class and the application class loader based on a load demanding, wherein the platform is working; and

starting the application class after loading the new version;

wherein the sub-core class loader is generated from a base class;

wherein the application class and the application class loader are generated from a core class that is generated by said base class.

5. A medium storing software-module dynamic loading method for performing the steps of claim 4.

6. The software-module dynamic loading method according to claim 4, wherein the new version of the one of the application class and the application class loader is sent from a network.

7. A system for dynamic loading of a software-module, comprising:

a terminal for requesting a new version of software to be loaded;

a network for delivering said new version of software to be loaded;

a device, storable in a computer-readable medium, including a platform, wherein said platform including a base class for generating a core class and a sub-core class loader; and

wherein said sub-core class loader, during platform operation, to load said new version of software for both an application class and an application class loader, both generated from said core class, in response to a request from said terminal, by receiving said new version of software from said network.