PROCESS AND SYSTEM FOR PROVIDING NAME SERVICE SCOPING BEHAVIOR

• US 20020147696A1
• Filed: 08/12/1999
• Published: 10/10/2002
• Est. Priority Date: 08/12/1999
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: KNUTSON, JAMES IRWIN, LEBLANC, KARALEE BROWN, ACKER, LIANE ELIZABETH HAYNES
• Granted Patent: US 6,834,284 B2
• Time in Patent Office: Days
• US Class Current: 707/1
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface
• CPC Class Codes: Y10S 707/99944 Object-oriented database structure

Abstract

A process and system for providing name service scoping behavior is implemented. In an object-oriented data processing system, a request is received for an initial context for a namespace from a requesting object. A scoped initial context factory object is constructed, and an initial context is requested from the scoped initial context factory object. A class for the scoped initial context factory object may be determined from a variable in a hash table object passed as an argument. In response to the request for an initial context from the scoped initial context factory object, an initial context is requested from a non-scoped initial context factory object. The scoped initial context factory object may be a subclass of the non-scoped initial context factory object. The initial context returned by the non-scoped initial context factory object is scoped to a partition of the namespace, and the scoped initial context is returned. The initial context returned by the non-scoped initial context factory object may be scoped by performing a name service lookup on the partition of the namespace. The requesting object and the scoping object may be implemented in a platform-independent object-oriented programming language, such as Java.

Claims

1. A process for implementing a name service, the process comprising the computer-implemented steps of:

receiving a request for an initial context for a namespace;

scoping the initial context to a partition of the namespace; and

returning the scoped initial context.

2. The process of claim 1, wherein the requesting object and the scoping object are implemented in a platform-independent object-oriented programming language.

3. The process of claim 2 wherein the platform-independent object-oriented programming language is the Java programming language.

4. A process for implementing a name service in an object-oriented environment, the process comprising the computer-implemented steps of:

receiving a request for an initial context for a namespace from a requesting object;

constructing a scoped initial context factory object;

requesting an initial context from the scoped initial context factory object;

in response to the request for an initial context from the scoped initial context factory object, requesting an initial context from a non-scoped initial context factory object;

scoping the initial context returned by the non-scoped initial context factory object to a partition of the namespace; and

returning the scoped initial context.

5. The process of claim 4 wherein the initial context returned by the non-scoped initial context factory object is scoped by performing a name service lookup on the partition of the namespace.

6. The process of claim 4 wherein a class for the scoped initial context factory object is determined from a variable in a hash table object passed as an argument.

7. The process of claim 4 wherein the scoped initial context factory object is a subclass of the non-scoped initial context factory object.

8. The process of claim 4 wherein the requesting object and the scoping object are implemented in a platform-independent object-oriented programming language.

9. The process of claim 8 wherein the platform-independent object-oriented programming language is the Java programming language.

10. The process of claim 9, wherein the scoped initial context factory object is determined from the java.naming.factory.initial property.

11. A data processing system for implementing a name service in an object-oriented environment, the data process system comprising:

receiving means for receiving a request for an initial context for a namespace from a requesting object;

constructing means for constructing a scoped initial context factory object;

first requesting means for requesting an initial context from the scoped initial context factory object;

second requesting means for requesting, in response to the request for an initial context from the scoped initial context factory object, an initial context from a non-scoped initial context factory object;

scoping means for scoping the initial context returned by the non-scoped initial context factory object to a partition of the namespace; and

returning means for returning the scoped initial context.

12. The data processing system of claim 11 wherein the initial context returned by the non-scoped initial context factory object is scoped by performing a name service lookup on the partition of the namespace.

13. The data processing system of claim 11 wherein a class for the scoped initial context factory object is determined from a variable in a hash table object passed as an argument.

14. The data processing system of claim 11 wherein the scoped initial context factory object is a subclass of the non-scoped initial context factory object.

15. The data processing system of claim 11 wherein the requesting object and the scoping object are implemented in a platform-independent object-oriented programming language.

16. The data processing system of claim 15 wherein the platform-independent object-oriented programming language is the Java programming language.

17. The data processing system of claim 16, wherein the scoped initial context factory object is determined from the java.naming.factory.initial property.

19. The computer program product of claim 18 wherein the initial context returned by the non-scoped initial context factory object is scoped by performing a name service lookup on the partition of the namespace.

20. The computer program product of claim 18 wherein a class for the scoped initial context factory object is determined from a variable in a hash table object passed as an argument.

21. The computer program product of claim 18 wherein the scoped initial context factory object is a subclass of the non-scoped initial context factory object.

22. The computer program product of claim 18 wherein the requesting object and the scoping object are implemented in a platform-independent object-oriented programming language.

23. The computer program product of claim 22 wherein the platform-independent object-oriented programming language is the Java programming language.

24. The computer program product of claim 23, wherein the scoped initial context factory object is determined from the java.naming.factory.initial property.

18. A computer program product in a computer-readable medium for use in a data processing system for implementing a name service in an object-oriented environment, the computer program product comprising:

first instructions for receiving a request for an initial context for a namespace from a requesting object;

second instructions for constructing a scoped initial context factory object;

third instructions for requesting an initial context from the scoped initial context factory object;

fourth instructions for requesting, in response to the request for an initial context from the scoped initial context factory object, an initial context from a non-scoped initial context factory object;

fifth instructions for scoping the initial context returned by the non-scoped initial context factory object to a partition of the namespace; and

sixth instructions for returning the scoped initial context.