Method and apparatus for verifying Enterprise Java Beans

• US 6,684,387 B1
• Filed: 09/23/1999
• Issued: 01/27/2004
• Est. Priority Date: 09/23/1999
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Chen, Ping, LeBlanc, Karalee Brown, Acker, Liane Elizabeth Haynes, Apte, Ajay A.
• Primary Examiner(s): Chavis, John
• Assistant Examiner(s): SHRADER, LAWRENCE J
• Application Number:
  US09/404,404
• Time in Patent Office: 1,587 Days
• Field of Search: 707/203-204, 707/103.Y, 707/10, 717/102, 717/120-126, 717/174
• US Class Current: 717/126
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

The introspection capability of Java is utilized by the described verification tool to verify validity of a target bean'"'"'s Java Archive (JAR) file. The deployment descriptor class is verified first according to Enterprise Java Bean. specification rules. The remaining classes: remote interface, home interface and bean class are all loaded into a Java Virtual Machine (JVM) and verified by the described verification tool through Java introspection.

Claims

1. A method for determining validity of a server side object, said method comprising:

receiving an archive file in a data processing system memory location;

loading said archive file containing a server side object onto a server connected to said data processing system;

loading said server side object to a server memory, wherein said server side object is an

Enterprise Java Bean;

providing access by multiply clients to said server side object, wherein said multiple clients may be deployed on a separate data processing system;

introspecting, with reference to a standard, a deployment descriptor class, a remote interface, a home interface and a bean class of said archive file;

displaying a descriptive error for any non-compliant portion of said server side object; and

validating said server side object if no errors are displayed.

2. The method of claim 1, further comprising:

providing error messages, wherein said error messages correspond to server side object specification violations.

3. The method of claim 1, further comprising:

developing said server side object for implementation on multiple data processing systems having different operating systems.

4. The method of claim 3, wherein developing said server side object for implementation on multiple data processing systems each having a different operating system, further comprises:

determining validity of said server side object utilizing a Java Archive file of said Bean.

5. The method of claim 1, wherein loading said server side object, wherein said server side object is an Enterprise Java Bean, further comprises:

importing said Enterprise Java Bean from an off-system source.

6. A computer program product within a computer readable medium having instructions for determining validity of a server side object, said computer program product comprising:

instructions within said computer readable medium for receiving an archive file in a data processing system memory location;

instructions within said computer readable medium for loading said archive file containing a server side object onto a server connected to said data processing system;

instructions within said computer readable medium for loading said server side object to a server memory wherein said server side object is an Enterprise Java Bean;

instructions within said computer readable medium for providing access by multiple clients to said server side object, wherein said multiple clients may be deployed on a separate, connected data processing system;

instructions within said computer readable medium for displaying a descriptive error for any non-compliant portion of aid server side object; and

instructions within said computer readable medium for validating said server side object if no errors are displayed.

7. The program product of claim 6, further comprising:

instructions within said computer readable medium for providing error messages, wherein said error messages correspond to server side object specification violations.

8. The program product of claim 6, further comprising:

instructions within said computer readable medium for developing said server side object for implementation on different data processing systems having different operating systems.

9. The program product of claim 8, wherein developing said server side object for implementation on multiple data processing systems each having a different operating system, further comprises:

instructions within said computer readable medium for determining validity of said server side object utilizing a Java Archive file of said Bean.

10. The program product of claim 6, wherein loading said server side object, wherein said server side object is an Enterprise Java bean, further comprises:

instructions within said computer readable medium for importing said Enterprise Java Bean from an off-system source.

11. An apparatus for determining validity of a server side object, comprising:

a network;

a data processing system connected to said network;

a server for receiving said server side object, connected to said data processing system;

an archive file containing said server side object, wherein said archive file comprises a deployment descriptor class, a remote interface, a home interface and a bean class;

an introspection tool for verifying said server side object;

error signaling means for displaying a descriptive error for any non-compliant portion of said server side object; and

confirmation signaling means for displaying validation of said server side object.

12. The apparatus of claim 11, wherein said server said object is an Enterprise Java Bean.

13. The apparatus of claim 12, further comprising:

error signal messages corresponding to server side object specification violations.

14. The apparatus of claim 13, further comprising:

validation means for verifying said server side object on multiple data processing systems having different operating systems.