Method for eliminating redundant method calls in an object oriented program

• US 7,093,241 B2
• Filed: 06/07/2002
• Issued: 08/15/2006
• Est. Priority Date: 06/07/2002
• Status: Active Grant

• Current Assignee: Sony Corporation Of America (Sony Group Corp.)
• Original Assignee: Intel Corporation
• Inventors: Hsieh, deceased, Hsien-Cheng E.
• Primary Examiner(s): Zhen, Wei
• Assistant Examiner(s): CHOW, CHIH CHING
• Application Number:
  US10/165,379
• Publication Number:
  US 20030229887A1
• Time in Patent Office: 1,530 Days
• Field of Search: 717/116, 717/148, 717/140, 717/108, 717/151, 717/166, 717/153, 706/47
• US Class Current: 717/153
• CPC Class Codes: G06F 9/4488 Object-oriented

Abstract

A method and machine-readable medium provide flags to commonly derived objects so that redundant method calls are avoided.

Claims

1. A computerized method comprising:

processing a group of objects in a sequence based on a single JAVA class library, each object comprising a method call, calling for a redundant process that is performed for all objects in the group of objects, the redundant process is a check of a buffer capacity; and

providing a first flag associated with a first object in a selected sequence of the group of objects for permitting the redundant process and a second flag in another object at another position in the sequence of objects for disabling the redundant process.

2. The computerized method according to claim 1, wherein the objects include a JAVA string class object and objects from parent classes of the object.

3. The computerized method according to claim 2 wherein providing the first flag comprises providing a “

define”

flag, and providing the second flag comprises providing a “

use”

flag, the first flag being provided in a first of the group of objects in sequence to be processed and the second flag in a last object in the sequence to be processed.

4. The computerized method according to claim 2 wherein the first flag and the second flag correspond to a root flag and a leaf flag, the root flag being placed at a first JAVA API entrance point of the group of objects to disable the redundant operation, and placing the leaf flag to perform a last call of the operation performed for all objects in the group.

5. The computerized method according to claim 4 wherein an exception is raised and further wherein the exception is reported as having happened at the object containing the root flag.

6. The computerized method according to claim 5 wherein the method comprises a check buffer method and wherein the flags indicate whether buffer capacity has been checked by a corresponding JAVA application.

7. A machine-readable storage medium that provides instructions which, when executed by a processor, cause the processor to perform operations comprising a method call, calling for an operation that is redundant performed for all objects in the group of objects, the operation being a check of a buffer capacity;

and providing a first flag associated with an object in a selected sequence of the group of objects for permitting the method call arid a second flag in another object at another position in the group of objects for disabling the method call.

8. A machine-readable storage medium according to claim 7 that provides instructions which, when executed by a processor, cause the processor to perform operations wherein the objects include a JAVA string class object and objects from parent classes of the object.

9. A machine-readable storage medium according to claim 8 that provides instructions which, when executed by a processor, a first flag comprising a “

define”

flag, and providing the second flag comprising a “

use”

flag, the first flag being provided in a first of the objects in sequence to be processed and the second flag in a last object in the sequence to be processed.

10. A machine-readable storage medium according to claim 8 that provides instructions which, when executed by a processor, when an exception is raised reporting the exception is as having happened at the object containing a root flag.

11. A machine-readable storage medium according to claim 10 that provides instructions which, when executed by a processor, the method comprises a check buffer method and wherein the flags indicate whether buffer capacity has been checked by a corresponding JAVA application.

12. A JAVA application program stored in memory and executed by a processor, the JAVA application program configured to processing a plurality of objects based on a single JAVA class library, each the object comprising a method call that calls for an operation that is redundantly performed for all objects in the group of objects, comprising:

a first object in a selected sequence of the plurality of objects, the first object including a first flag that, when set, permits the method call that is directed to a checking of a buffer capacity; and

a second abject in the selected sequence or the plurality of objects, the second object including a second flag that, when set, disables the method call.

13. The JAVA application program of claim 12 wherein the first and second objects include a JAVA string class object and objects from parent classes of the object.

14. The JAVA application program of claim 13 wherein the first and second flags indicate whether buffer capacity has been checked by a corresponding JAVA application.