Method and apparatus in a data processing system for systematically serializing complex data structures

• US 6,292,933 B1
• Filed: 10/29/1999
• Issued: 09/18/2001
• Est. Priority Date: 08/02/1999
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bahrs, Peter C., Feigenbaum, Barry Alan, Sundberg, Sean Michael, Modh, Manish Mahesh, Woolfrey, John Allen Hubert, Chancey, Raphael Poole
• Primary Examiner(s): Powell, Mark R.
• Assistant Examiner(s): Khatri, Anil
• Application Number:
  US09/430,113
• Time in Patent Office: 690 Days
• Field of Search: 717/1, 717/9, 717/11, 707/103, 707/203, 707/100, 707/500, 707/511, 707/1, 707/104
• US Class Current: 717/107
• CPC Class Codes: H02M 3/285 Single converters with a plurality of output stages connected in parallel parallel operation of a plurality of converters in dc distribution networks H02J1/10
• CPC Class Codes: H02M 3/33592 having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

A method and apparatus in a data processing system for serialization data. A serializer receives a data element for serialization, wherein the data element includes a class name string. Responsive to receiving the data element, the serializer replaces the class name string with a code having a smaller size than the class name string to form a modified data element. Responsive to forming the modified data element, in which the serializer serializes the modified data element. The serialized data is transmitted and deserialized by deserializer which replaces the indicator with the class name.

Claims

1. A method in a data processing system for serializing a data element, the method comprising the data processing system implemented steps of:

receiving the data element for serialization, wherein data element includes a class name;

replacing the class name with an indicator having a smaller size than the class name to form a modified data element; and

serializing the modified data element.

2. The method of claim 1, wherein the step of replacing the class name string with an indicator having a smaller size than the class name to form a modified data element comprises hashing the class name to create a hash code and replacing the class name with the hash code.

3. The method of claim 2 further comprising:

receiving the modified data element;

deserializing the modified data element; and

replacing the hash code with the class name string.

4. The method of claim 1, wherein the data element includes a path and wherein the path and the class name string are replaced with the indicator.

5. The method of claim 1, wherein the steps receiving a data element for serialization, wherein data element includes a class name;

replacing the class name with an indicator having a smaller size than the class name to form a modified data element are performed at the data processing system; and

the steps of receiving the modified data element;

deserializing the modified data element; and

replacing the hash code with the class name are performed at another data processing system.

6. A method in a data processing system for serializing a data element, the method comprising the data processing system implemented steps of:

receiving the data element for serialization wherein data element includes a class name;

replacing the class name with an indicator having a smaller size than the class name to form a modified data element;

serializing the modified data element

determining whether the data element includes a class name that is replaceable; and

responsive to a determination that the data is unreplaceable serializing the data element using a default process.

7. A method in a data processing system for deserializing a data object, the method comprising:

receiving a data element for deserialization;

deserializing the data element; and

replacing an indicator within the data element with a class name.

8. The method of claim 7, wherein the indicator is a hash code and wherein the step of replacing an indicator within the data element with a class name comprises:

using the hash code as a key within a hash table to identify the class name; and

replacing the hash code with the class name.

9. The method of claim 8, wherein the hash code also identifies a base Java class.

10. The method of claim 9, wherein the data is a base Java class path.

11. A data processing system comprising:

a serializer having a plurality of modes of operation including;

a first mode of operation in which the serializer receives a data element for serialization, wherein the data element includes a class name string;

a second mode of operation, responsive to receiving the data element in which the serializer replaces the class name string with a code having a smaller size than the class name string to form a modified data element; and

a third mode of operation, responsive to forming the modified data element, in which the serializer serializes modified data element.

12. The data processing system of claim 11, wherein the serializer replaces the class name string with a code using a hashing function, wherein the code is a hash code.

13. A data processing system for serializing a data element, the data processing system comprising:

receiving means for receiving the data element for serialization, wherein data element includes a class name;

replacing means for replacing the class name with an indicator having a smaller size than the class name to form a modified data element; and

serializing means for serializing the modified data element.

14. The data processing system of claim 13, wherein the means of replacing the class name string with an indicator having a smaller size than the class name to form a modified data element comprises hashing the class name to create a hash code and replacing the class name with the hash code.

15. The data processing system of claim 14 further comprising:

receiving means for receiving the modified data element;

deserializing means for deserializing the modified data element; and

replacing means for replacing the hash code with the class name string.

16. The data processing system of claim 13, wherein the means of receiving a data element for serialization, wherein data element includes a class name;

replacing the class name with an indicator having a smaller size than the class name to form a modified data element are performed at the data processing system; and

the means of receiving the modified data element;

deserializing the modified data element; and

replacing the hash code with the class name are performed at another data processing system.

17. The data processing system of claim 13, wherein the data element includes a path and wherein the path and the class name string are replaced with the indicator.

18. A data processing system for serializing a data element, the data processing system comprising:

receiving means for receiving the data element for serialization, wherein data element includes a class name;

replacing means for replacing the class name with an indicator having a smaller size than the class name to form a modified data element;

serializing means for serializing the modified data element

determining means for determining whether the data element includes a class name that is replaceable; and

serializing means, responsive to a determination that the data is unreplaceable, for serializing the data element using a default process.

19. A data processing system for deserializing a data object, the data processing system comprising:

receiving means for receiving a data element for deserialization;

deserializing means for deserializing the data element; and

replacing means for replacing an indicator within the data element with a class name.

20. The data processing system of claim 19, wherein the indicator is a hash code and wherein the means of replacing an indicator within the data element with a class name comprises:

using means for using the hash code as a key within a hash table to identify the class name; and

replacing means for replacing the hash code with the class name.

21. The data processing system of claim 20, wherein the hash code also identifies a base Java class.

22. The data processing system of claim 21, wherein the data is a base Java class path.

23. A computer program product in a computer readable medium for serializing a data element, the computer program product comprising:

first instructions for receiving the data element for serialization, wherein data element includes a class name;

second instructions for replacing the class name with an indicator having a smaller size than the class name to form a modified data element; and

third instructions for serializing the modified data element.

24. A computer program product in a computer readable medium for deserializing a data object, the computer program product comprising:

first instructions for receiving a data element for deserialization;

second instructions for deserializing the data element; and

third instructions for replacing an indicator within the data element with a class name.