Process and system for providing name service scoping behavior in java object-oriented environment

• US 6,834,284 B2
• Filed: 08/12/1999
• Issued: 12/21/2004
• 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
• Primary Examiner(s): CHANNAVAJJALA, SRIRAMA T
• Application Number:
  US09/373,879
• Publication Number:
  US 20020147696A1
• Time in Patent Office: 1,958 Days
• Field of Search: 707/1-3, 707/100-104, 707/200-202, 707/500-501, 717/1-11, 717/100-108, 709/309, 709/315, 709/217, 709/316, 709/105, 709/310, 709/328, 709/330, 709/230-232, 709/235-236
• US Class Current: 1/1
• 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;

generating an instance of the initial context;

using the instance of the initial context to locate within the namespace a partition of the namespace; and

returning a narrowed initial context referring to only the partition of the namespace.

2. The process of claim 1, wherein the process is 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:

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 method belonging to a non-scoped initial context factory object class;

using the initial context returned by the method to locate within the namespace a partition of the namespace; and

returning a narrowed initial context referring to only the partition the namespace.

5. The process of claim 4 wherein a class or the scoped initial context factory object is determined from a variable in a hash table object.

6. The process of claim 4 wherein the scoped initial context factory object belongs to a subclass of the non-scoped initial context factory object lass.

7. The process of claim 4 wherein the process is implemented in a platform-independent object-oriented programming language.

8. The process of claim 7 wherein the platform-independent object-oriented programming language is the Java programming language.

9. The process of claim 8, wherein the scoped initial context factory object is determined from a java.naming.factory.initial property.

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

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 method belonging to a non-scoped initial context factory object class;

using means for using the initial context returned by the method to locate within the namespace a partition of the namespace; and

returning means for returning a narrowed initial context referring to only the partition of the namespace.

11. The data processing system of claim 10 wherein a class for the scoped initial context factory object is determined from a variable in a hash table object.

12. The data processing system of claim 10 wherein the scoped initial context factory object belongs to a subclass of the non-scoped initial context factory object class.

13. The data processing system of claim 10 wherein at least on of the constructing means, first requesting means, second requesting means, using means and narrowing means is implemented in a platform-independent object-oriented programming language.

14. The data processing system of claim 13 wherein the platform-independent object-oriented programming language is the Java programming language.

15. The data processing system of claim 14, wherein the scoped initial context factory object is determined from a java.naming.factory.initial property.

16. 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 constructing a scoped initial context factory object;

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

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

fourth instructions for using the initial context returned by the method to locate within the namespace a partition of the namespace; and

fifth instructions for returning a narrowed initial context referring to only the partition of the namespace.

17. The computer program product of claim 16 wherein a class for the scoped initial context factory object is determined from a variable in a hash the object.

18. The computer program product of claim 16 wherein the scoped initial context factory object belongs to a subclass of the non-scoped initial context factory object class.

19. The computer program product of claim 16 wherein the computer program product is implemented in a platform-independent object-oriented programming language.

20. The computer program product of claim 19 wherein the platform-independent object-oriented programming language is the Java programming language.

21. The computer program product of claim 20, wherein the scoped initial context factory object is determined from a java.naming.factory.initial property.