Method for synchronization of a line-oriented text document and a stream-oriented text document

• US 20050097434A1
• Filed: 01/13/2004
• Published: 05/05/2005
• Est. Priority Date: 10/29/2003
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Storisteanu, Adrian
• Granted Patent: US 7,451,396 B2
• Time in Patent Office: Days
• US Class Current: 715/249
• CPC Class Codes: G06F 40/194 Calculation of difference between files

Abstract

A method for synchronizing the contents of a line-oriented text document and a stream-oriented text document. The line-oriented text document has a sequence number area. The line-oriented text document listens for a change in the content of the stream-oriented text document and vice versa. When a change is detected in one document, listening in the other document is suspended and a complementary document change is implemented in the other document. Document adjustments resulting from such a complementary change are listened for separately, and echoed similarly into the original document.

Claims

1. For a data processing system, a method for synchronizing the contents of a line-oriented document and a corresponding stream-oriented document, the line-oriented document having a sequence number area, the data processing system being operably coupled to memory, the method comprising the steps of:

listening for a change in the content of the line-oriented document;

listening for a change in the content of the stream-oriented document;

when a document change is detected in the line-oriented document, suspending listening for changes in the stream-oriented document and implementing a complementary document change in the stream-oriented document; and

when a document change is detected in the stream-oriented document, suspending listening for changes in the line-oriented document and implementing a complementary document change in the line-oriented document.

2. The method as claimed in claim 1, further comprising the steps of:

when a document change is detected in the stream-oriented document, listening for a document adjustment in the line-oriented document; and

when a document adjustment is detected in the line-oriented document, after the step of implementing a complementary document change in the line-oriented document, suspending listening for changes in the stream-oriented document and implementing a complementary document adjustment in the stream-oriented document.

3. The method as claimed in claim 2, further comprising the steps of:

when a document change is detected in the line-oriented document, translating coordinates of the document change in the line-oriented document into text coordinates in the stream-oriented document;

when a document change is detected in the stream-oriented document, translating coordinates of the document change in the stream-oriented document into text coordinates in the line-oriented document; and

when a document adjustment is detected in the line-oriented document, translating coordinates of the document adjustment in the line-oriented document into text coordinates in the stream-oriented document.

4. The method as claimed in claim 3, wherein the complementary document adjustment includes a change in the content of the stream-oriented document which corresponds to a complementary document change in the sequence number area, record length, or formatting of a record in the line-oriented document.

5. The method as claimed in claim 3, wherein the complementary document adjustment includes a change in the content of the stream-oriented document which corresponds to a complementary document change in the sequence number area.

6. The method as claimed in claim 3, further comprising the steps of:

when a document change is detected in the line-oriented document, after the step of implementing a complementary document change in the stream-oriented document, resuming listening for a change in the content of the stream-oriented document;

when a document change is detected in the stream-oriented document, after the step of implementing a complementary document change in the line-oriented document, resuming listening for a change in the content of the line-oriented document; and

when a document adjustment is detected in the line-oriented document, after the step of implementing a complementary document adjustment in the stream-oriented document, resuming listening for a change in the content of the stream-oriented document.

7. The method as claimed in claim 6, further comprising the steps of:

registering a document-change listener associated with the line-oriented document; and

registering a document-change listener associated with the stream-oriented document.

8. The method as claimed in claim 7, further comprising the step of:

when a complementary document change is implemented in the line-oriented document, registering a document-adjustment listener associated with the line-oriented document.

9. The method as claimed in claim 8, wherein the step of suspending listening includes de-registering the corresponding document-change or document-adjustment listener, and wherein the step of resuming listening includes re-registering the corresponding document-change or document-adjustment listener.

10. The method as claimed in claim 3, wherein the line-oriented document is associated with a line-oriented editor, and wherein the stream-oriented document is associated with a stream-oriented application having a document synchronization adapter.

11. The method as claimed in claim 10, wherein the line-oriented editor is formed integrally with the stream-oriented application.

12. A computer program product having a computer readable medium tangibly embodying code for directing a data processing system to synchronize the contents of a line-oriented document and a corresponding stream-oriented document, the line-oriented document having a sequence number area, the data processing system being operably coupled to memory, the computer program product comprising:

code for listening for a change in the content of the line-oriented document;

code for listening for a change in the content of the stream-oriented document;

code responsive to a document change detected in the line-oriented document for suspending listening for changes in the stream-oriented document and implementing a complementary document change in the stream-oriented document; and

code responsive to a document change detected in the stream-oriented document for suspending listening for changes in the line-oriented document and implementing a complementary document change in the line-oriented document.

13. The computer program product as claimed in claim 12, further comprising:

code responsive to a document change detected in the stream-oriented document for listening for a document adjustment in the line-oriented document; and

code responsive to a document adjustment detected in the line-oriented document for, after implementing a complementary document change in the line-oriented document, suspending listening for changes in the stream-oriented document and implementing a complementary document adjustment in the stream-oriented document.

14. The computer program product as claimed in claim 13, further comprising:

code responsive to a document change detected in the line-oriented document for translating coordinates of the document change in the line-oriented document into text coordinates in the stream-oriented document;

code responsive to a document change detected in the stream-oriented document for translating coordinates of the document change in the stream-oriented document into text coordinates in the line-oriented document; and

code responsive to a document adjustment detected in the line-oriented document for translating coordinates of the document adjustment in the line-oriented document into text coordinates in the stream-oriented document.

15. The computer program product as claimed in claim 14, wherein the complementary document adjustment includes a change in the content of the stream-oriented document which corresponds to a complementary document change in the sequence number area.

16. A data processing system for synchronizing the contents of a line-oriented document and a corresponding stream-oriented document, the line-oriented document having a sequence number area, the data processing system being operably coupled to memory, the data processing system comprising:

a document synchronization adapter, including;

a module for detecting a change in the content of the line-oriented document;

a module for detecting a change in the content of the stream-oriented document;

a module responsive to a document change detected in the line-oriented document for suspending detecting changes in the stream-oriented document and implementing a complementary document change in the stream-oriented document; and

a module responsive to a document change detected in the stream-oriented document for suspending detecting changes in the line-oriented document and implementing a complementary document change in the line-oriented document.

17. The data processing system as claimed in claim 16, further comprising:

a module responsive to a document change detected in the stream-oriented document for detecting a document adjustment in the line-oriented document; and

a module responsive to a document adjustment detected in the line-oriented document for, after implementing a complementary document change in the line-oriented document, suspending detecting changes in the stream-oriented document and implementing a complementary document adjustment in the stream-oriented document.

18. The data processing system as claimed in claim 17, further comprising:

a module responsive to a document change detected in the line-oriented document for translating coordinates of the document change in the line-oriented document into text coordinates in the stream-oriented document;

a module responsive to a document change detected in the stream-oriented document for translating coordinates of the document change in the stream-oriented document into text coordinates in the line-oriented document; and

a module responsive to a document adjustment detected in the line-oriented document for translating coordinates of the document adjustment in the line-oriented document into text coordinates in the stream-oriented document.

19. The data processing system as claimed in claim 18, wherein the complementary document adjustment includes a change in the content of the stream-oriented document which corresponds to a complementary document change in the sequence number area.

20. A computer data signal embodied in a carrier wave for directing a data processing system to synchronize the contents of a line-oriented document and a corresponding stream-oriented document, the line-oriented document having a sequence number area, the data processing system being operably coupled to memory, the computer data signal comprising:

a component in the computer data signal for detecting a change in the content of the line-oriented document;

a component in the computer data signal for detecting a change in the content of the stream-oriented document;

when a document change is detected in the line-oriented document, a component in the computer data signal for suspending detecting changes in the stream-oriented document and a component in the computer data signal for implementing a complementary document change in the stream-oriented document; and

when a document change is detected in the stream-oriented document, a component in the computer data signal for suspending detecting changes in the line-oriented document and a component in the computer data signal for implementing a complementary document change in the line-oriented document.

21. The computer data signal as claimed in claim 20, further comprising:

when a document change is detected in the stream-oriented document, a component in the computer data signal for detecting a document adjustment in the line-oriented document; and

when a document adjustment is detected in the line-oriented document, after implementing a complementary document change in the line-oriented document, a component in the computer data signal for suspending detecting changes in the stream-oriented document, and a component in the computer data signal for implementing a complementary document adjustment in the stream-oriented document.