Method for extending the hypertext markup language (HTML) to support enterprise application data binding

• US 5,940,075 A
• Filed: 09/30/1997
• Issued: 08/17/1999
• Est. Priority Date: 09/30/1997
• Status: Expired due to Term

• Current Assignee: Unisys Corporation
• Original Assignee: Unisys Corporation
• Inventors: Stefaniak, Joseph Peter, Mutschler, Eugene Otto III
• Primary Examiner(s): SAX, STEVEN PAUL
• Application Number:
  US08/941,437
• Time in Patent Office: 686 Days
• Field of Search: 345/335, 345/356, 345/357, 345/327, 345/326, 345/328, 345/329, 345/330-334, 345/336, 345/337-338, 345/339, 345/340-347, 345/398-399, 348/352-355, 348/466, 707/102-103, 707/500-514
• US Class Current: 715/760
• CPC Class Codes: G06F 16/252 between a Database Management System and a front-end application
• CPC Class Codes: G06F 9/44 Arrangements for executing specific programs

Abstract

A method operating in a computing system that has at least one server and a multiplicity of clients coupled thereto. The server has a CPU executing a Web Server program and a repository coupled thereto for storing description language of a Form to be displayed. The server is coupled to a host having a CPU executing a legacy application containing the Form. At least one of the clients executes a Web browser program. The method of the present invention operates in the server and the client for supporting enterprise application data binding. The method in the server includes the steps of opening the Forms and requesting a first Form and associating data names with data values received from the host and sending them to the client. The client then locates a corresponding GUI Control and makes an association between each of the data names and a corresponding GUI Control and obtains the contents of each of the corresponding GUI Controls associated with a data name and places data value/data name into a buffer, Next, the server processes the contents of the buffer and sends it to the host, whereby the GUI Controls are displayed containing values and states from the Form.

Claims

1. In a computing system having at least one server and a multiplicity of clients coupled thereto by means of a network, said server having a CPU executing a Web Server program and having a repository coupled thereto for storing description language of a Form to be displayed, at least one of said clients executing a Web browser program, a method operating in said server and said at least one of said clients (hereafter said client) for supporting enterprise application data binding, said method comprising the steps of:

a. in said server opening said Forms and requesting a first Form;

b. in said server generating data binding of data names with data values and sending to said client;

c. in said client processing said data binding with GUI Controls and sending to said server;

d. in said server taking contents of GUI Controls and generating results;

e. in said server processing said results and getting next Form from said Forms;

whereby said GUI Controls are displayed containing values and states from said Form.

2. The method as in claim 1 wherein step d thereof further includes for each GUI Control associated with a data name, obtaining contents of said GUI Control and placing value thereof and data name into a result buffer.

3. The method as in claim 2 further including the step of constructing a response URL containing said result buffer and a command.

4. The method as in claim 3 further including the step of passing said response URL to said Web browser.

5. The method as in claim 1 wherein step e thereof further includes the step of parsing said results to determine said command.

6. The method as in claim 5 further including the step of, in response to said command, accessing said file developed for said legacy application Form and, using information from said file as a template, extracting values from said result buffer to construct a legacy application buffer for transmittal to said host.

7. The method as in claim 5 further including the step of transmitting said legacy application buffer to said legacy application at said host and, in response to a next Form invocation from said legacy application, retrieving from said repository Form description language text and files developed for said next Form.

16. The method as in claim 1 wherein step c thereof further includes said client parsing said Form description language text parameter passed to it to obtain Constructs containing information relating to data names for said GUI Controls to be displayed.

17. The method as in claim 16 further including for each said Construct that includes a data name, locating a corresponding GUI Control and making an association between said data name and said GUI Control.

18. The method as in claim 17 further including the step of using information from said Form description language text and a data value from a data name/data value list for setting initial state information and contents of said GUI Control.

8. In a computing system having at least one server (hereafter "said server") and a multiplicity of clients coupled thereto by means of a network, said server having a CPU executing a Web Server program and having a repository coupled thereto for storing description language of a Form to be displayed, a host having a CPU executing a legacy application containing said Form, and at least one of said clients (hereafter said client) executing a Web browser program, a method operating in said server and said client for supporting enterprise application data binding, said method comprising the steps of:

a. in said server opening said Forms and requesting a first Form from said host;

b. in said server generating data binding by associating data names with data values received from said host and sending to said client;

c. in said client processing data binding by locating corresponding GUI Controls and making an association between each of said data names and said corresponding GUI Control;

d. in said client obtaining contents of each of said corresponding GUI Controls associated with a data name and placing value and data name into a buffer;

e. in said server processing contents of said buffer and sending to said host

f. in said server retrieving a next Form from said host;

whereby said GUI Controls are displayed containing values and states from said Form.

9. The method as in claim 8 wherein step a thereof includes receiving an URL from said Web browser and parsing said URL to obtain a command.

10. The method as in claim 9 further including in response to said command, further parsing of said URL to obtain partition in said repository and script for communicating with said host.

11. The method as in claim 10 further including the step of retrieving from said repository Form definition language text and a file developed for said Form for the purpose of mapping elements of a data stream from said legacy application to application data names contained in said Form definition language text.

12. The method as in claim 11 further including the step of parsing said developed file for said Form and associating data names of said legacy application with corresponding legacy application data values from a data stream returned from said host, thereby forming data name/data value pairs.

13. The method as in claim 12 further including the step of constructing an HTML object reference to said client, with parameters including said data name/data value pairs and said Form description language text.

14. The method as in claim 13 further including the step of generating an HTML page containing said object reference to said client.

15. The method as in claim 14 further including the step of returning said HTML page to said Web browser program.