Data processing technique for formatting data files that are subjected to a high volume of changes

• US 6,886,018 B1
• Filed: 10/05/2001
• Issued: 04/26/2005
• Est. Priority Date: 10/05/2001
• Status: Expired due to Term

• Current Assignee: Fidelity Information Services, LLC (Fidelity National Information Services Incorporated)
• Original Assignee: Metavante Corporation (Fidelity National Information Services Incorporated)
• Inventors: Boudris, Edward J., Schumacher, Brian K.
• Primary Examiner(s): Metjahic, Safet
• Assistant Examiner(s): ALAUBAIDI, HAYTHIM J
• Application Number:
  US09/972,075
• Time in Patent Office: 1,299 Days
• Field of Search: 707/1, 707/101, 707/203, 707/205, 711/5, 711/111, 711/115, 711/132
• US Class Current: 707/625
• CPC Class Codes: G06F 16/258 Data format conversion from or to a database
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99942 Manipulating data structure, e.g. compression, compaction, compilation
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

A system for processing a data file which includes versioned records of a fixed length, each record having one or more data fields and a reserve area for accommodating a change in the record format by creating a further field using a portion of the reserve area such that the length of the record is not changed. Additional records may be added to the record set to accommodate new or expanded data fields that exceed the fixed length of the records. Each record of the data file has a version number. The system includes an input vertical stack processor for transitioning previous versions of the records into a current version of the record for processing by an application processor. An output vertical stack processor creates outbound versioned records including the current version and all previous versions for each record of the data file.

Claims

1. A systems for processing a data file that includes a plurality of versioned records which are of a fixed length, said system comprising:

an input vertical stack processor including a record transitioning routine for determining when a record is a previous record version from said plurality of versioned records and for transitioning the previous record version of said one record into a current record version of said one record for use in creating an application input file, wherein each of said records contain at least one field containing data and a reserve area for accommodating changes, said input vertical stack processor allowing individual records to grow horizontally by using reserved unused space and vertically by adding records to the set without requiring all existing users to make synchronized changes; and

an application processor for processing said application input file.

2. The system of claim 1, wherein said record transitioning routine reformats previous version data fields of said one record to current data fields of said one record.

3. The system of claim 1, wherein said input vertical stack processor validates said one record prior to transitioning said one record.

4. The system of claim 3, wherein said input vertical stack processor includes a structure editing routine for providing file structure editing of said versioned records of said data file.

5. The system of claim 1, wherein each input record of said plurality of records includes a version number which indicates if a record is a current version or a previous version.

6. The system of claim 5, wherein said record transitioning routine uses the version number to determine if a record is a previous version.

7. A system for processing a data file that includes a plurality of versioned records which are of a fixed length, said system comprising:

an input vertical stack processor including a record transitioning routine for determining when a record is a previous record version from said plurality of versioned records and for transitioning the previous record version of said one record into a current record version of said one record for use in creating an application input file, wherein each input record of said plurality of records includes a version number which indicates if a record is a current version or a previous version, wherein said record transitioning routine uses the version number to determine if a record is a previous version;

an application processor for processing said application input file; and

an output vertical stack processor responsive to said application processor for producing a destination file including a plurality of records wherein each record includes at least current record versions for each record of said data file, and for writing the current record version of each record to the destination file.

8. The system of claim 7, wherein said output vertical stack processor supplements data contained in at least one record of said plurality of records with data for at least one previous version of said one record prior to writing said one record to said destination file.

9. The system of claim 8, wherein said output vertical stack processor supplements data contained in said one record with data for all of the previous versions of said one record prior to writing said one record to said destination file.

10. A system for producing a destination data file that includes a plurality of versioned records which are of a fixed length, said system comprising:

an application processor for producing the current version of each record of said data file; and

an output vertical stack processor using the current version of at least one record of said data file and information contained in a static memory map to produce a record which includes current version data supplemented with data for at least one previous version of said one record, and for writing the record including current version data and previous version data to the destination data file, wherein each of said record contain at least one field containing data and a reserve area for accommodating changes, said output vertical stack processor allowing individual records to grow horizontally by using reserved unused space and vertically by adding records to the set without requiring all existing users to make synchronized changes.

11. A system for producing a destination data file that includes a plurality of versioned records which are of a fixed length, said system comprising:

an application processor for producing the current version of each record of said data file; and

an output vertical stack processor using the current version of at least one record of said data file and information contained in a static memory map to produce a record which includes current version data supplemented with data for at least one previous version of said one record, and for writing the record including current version data and previous version data to the destination data file, wherein said output vertical stack processor supplements the current version data with data for all previous versions of said one record, in combination with the current version, of said one record of said data file prior to writing the record including current version data and all previous version data of said one record to the destination file.

12. A method for processing a data file that includes a plurality of input records which are of a fixed length, said method comprising the steps of:

reading at least one of said input records to obtain from said one input record, a version number for said one input record, the version number indicating whether said one input record is a current version or a previous version of said one input record;

using said version number to determine if said one input record is a current version or a previous version; and

when said one input record is a previous version, transitioning said one input record to a current version of the input record by

moving said one input record to a first work area of a memory, the first work area defining data fields for said one input record;

initializing a second work area of the memory with default values for the current version of said one input record, with the default values contained in data fields of the current version of said one input record; and

moving data contained in the data fields of said one input record in said first memory work area to corresponding data fields of the current version of said one input record in said second memory work area, whereby said second memory work area contains said one input record transitioned to the current version of said record.

13. The method of claim 12, wherein each of said input records includes a data receiving portion and a reserve area, and including the step of determining for at least said one input record if at least a portion of the reserve area defined for said previous version of said one input record is being used, and halting processing of said data file when any portion of said defined reserve area is being used.

14. The method of claim 12, including the step of reformatting data fields of said one input record to current data fields after data contained in the data fields of said one input record in said first memory work area have been moved to corresponding data fields of the current version of said one input record in said second memory work area.

15. The method of claim 14, wherein reformatting data fields of said one input record includes moving data from a first data field in said second memory work area to a second data field in said second memory work area.

16. The method of claim 12, wherein initializing the second memory work area with default values includes the steps of reading a record definition for the current version of said one input record to obtain the default values for the current version of said one input record, and copying the default values for the current version of said one input record to said second memory work area.

17. The method of claim 12, including the step of writing the transitioned version of said one input record to an application data file.

18. The method of claim 17, and when said one input record is the current version, moving said one input record to a work area of the memory, and writing said one input record, without transitioning, to an application file.