JPH04322335A - Arbitrary screen history system - Google Patents

Abstract

PURPOSE:To accept the transaction processing progress confirmation request from a display terminal by the operating system of a host computer. CONSTITUTION:A screen register means 51 registers the screen discrimination name of the screen, which is displayed on a display terminal 60, in a temporary file management table 54 on the way of advance of the transaction processing, and a data mixing and register means 52 mixes input data inputted to the screen displayed on the display terminal 60 and screen data of the screen discrimination name, which is latest registered in the temporary file management table 54, in accordance with the screen history gathering request from the display terminal 60 and registers mixed them, and a screen extracting means 53 extracts screen data, where input data is mixed, from a temporary file 55 based on the screen discrimination name registered in the temporary file management table 54 in accordance with the screen history display request from the display terminal.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arbitrary screen history method, and more particularly to an arbitrary screen history method for a transaction processing system that shows the progress of transaction processing on a display terminal in response to a request from the display terminal.

0002

2. Description of the Related Art In transaction processing systems, a business program executed by a host computer generally consists of a plurality of transaction processes. For each transaction process, a dedicated screen is displayed on the display terminal,
The terminal operator enters data in an interactive manner on the screen displayed on the display terminal, and proceeds to the next transaction process. As the scale of a business program becomes larger, the number of transaction processes increases, the relationships between transaction processes become more complex, and the progress paths of transaction processes become more diverse.

[0003] In the transaction processing of such a business program, the terminal operator must know where the transaction processing that he/she is currently performing is in the overall business program, and what path the current transaction processing took. You may want to check whether the

[0004] In such cases, in conventional transaction processing systems, a business program sequentially outputs messages indicating the progress of transaction processing to a specific display terminal, and these messages are checked by a terminal operator. However, this method has the problem that the progress of transaction processing can only be checked on a specific display terminal.

Therefore, in conventional transaction processing systems, a terminal operator issues a transaction processing progress confirmation request to a display terminal, and the transaction processing progress confirmation request is processed by a business program.

[0006]

[Problems to be Solved by the Invention] In the conventional transaction processing system described above, it is not possible for the host computer's operating system to process a transaction processing progress confirmation request from a display terminal that occurs at an unexpected point in time. In order to handle the processing progress confirmation request, it is necessary to devise a way to process the transaction processing progress confirmation request in the business program, which poses a problem in that it places a burden on the business program designer/developer.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an optional screen history method in which the operating system of a host computer accepts transaction processing progress confirmation requests from a display terminal instead of a business program. be.

[0008]

[Means for Solving the Problems] The arbitrary screen history method of the present invention provides a transaction processing system that displays the progress of transaction processing on a display terminal in response to a request from the display terminal. screen registration means for registering the screen identification name of the displayed screen in a temporary file management table; and a screen registration means for registering the screen identification name of the screen displayed in the temporary file management table; a data mixing registration means for registering the screen data of the screen identification name most recently registered in the table in a temporary file; and a screen identification registered in the temporary file management table in response to a screen history display request from a display terminal. and screen extraction means for extracting screen data mixed with input data from the temporary file based on the name.

[0009]

[Operation] In the arbitrary screen history method of the present invention, the screen registration means registers the screen identification name of the screen displayed on the display terminal during the progress of transaction processing in the temporary file management table, and the data mixing registration means In response to a screen history collection request from , the input data entered on the screen displayed on the display terminal is mixed with the screen data of the screen identification name most recently registered in the temporary file management table and registered in a temporary file. A screen extraction means extracts screen data mixed with input data from a temporary file based on a screen identification name registered in a temporary file management table in response to a screen history display request from a display terminal.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a transaction processing system to which an arbitrary screen history method according to an embodiment of the present invention is applied. This transaction processing system is constructed by connecting a display terminal 60 and a host computer 70 via a communication line or the like.

The host computer 70 includes an execution control unit 50,
Screen registration means 51, data mixing registration means 52, screen extraction means 53, temporary file management table 54, temporary file 55, screen library 56, business program 57, screen transmission control section 58, screen reception Control unit 5
9.

Next, the operation of the arbitrary screen history method of this embodiment configured as described above will be explained.

[0014] The user registers the screen data of the screen used in the business program 57 in the screen library 56 in advance so that it can be identified by a screen identification name.

The execution control unit 50 that controls the execution of the business program 57 also prepares a temporary file management table 54 when the business program 57 is executed, and also stores screen history information (input data is mixed) for a specified number of times. Allocate a temporary file 55 with sufficient capacity to collect screen data).

When the business program 57 issues a screen display request specifying a screen identification name while transaction processing is in progress, the screen transmission control unit 58 sends the screen data of the screen having the corresponding screen identification name to the screen library 56. , and transmits it to the display terminal 60 to display the screen on the display terminal 60, and also calls the screen registration means 51.

The screen registration means 51 stores the screen identification name of the screen displayed on the display terminal 60 in the temporary file management table 5.
Register on 4.

The terminal operator inputs necessary data on the screen displayed on the display terminal 60 and causes the data to be transmitted to the host computer 70.

In the host computer 70, the screen reception control section 5
9 receives the input data and passes it to the business program 57.

The business program 57 performs transaction processing using the passed input data, and when performing the next transaction processing, issues a screen display request specifying the screen identification name of the corresponding screen.

[0021] In this manner, if a terminal operator issues a screen history collection request to the display terminal 60 at any time while transaction processing is in progress, the screen reception control unit 59 collects the data. The mixed registration means 52 is called.

The data mixing registration means 52 extracts the corresponding screen data from the screen library 56 based on the latest screen identification name registered in the temporary file management table 54, and mixes the input data with the extracted screen data. and registers it in the temporary file 55 as screen history information.

[0023] Also, while transaction processing is in progress,
When a terminal operator issues a screen history display request to the display terminal 60 at any time, the screen reception control section 59 calls the screen extraction means 53.

The screen extraction means 53 extracts screen history information from the temporary file 55 based on the screen identification name registered in the temporary file management table 54 and passes it to the screen transmission control section 58 .

The screen transmission control unit 58 transmits the screen data mixed with the input data of the screen history information to the display terminal 60.
Send it to and display it.

At this time, since the input data has already been passed to the business program 57 and is being processed by the program, the screen data mixed with the input data to be sent to the display terminal 60 cannot be rewritten by the terminal operator. Not allowed.

Continuing on, if a screen history display request is issued from the display terminal 60, the above-described process is repeated, and the second screen history display request in the temporary file 55 from the time when the most recent screen history display request was issued is The screen history information is extracted and the screen data mixed with the input data is sent to the display terminal 60 and displayed.

When the terminal operator issues a screen history display termination request to the display terminal 60, the screen reception control section 59 calls the screen extraction means 53.

The screen extraction means 53 extracts the screen identification name most recently registered in the temporary file management table 54 indicating the screen data of the screen displayed on the display terminal 60 when the screen history display request was first issued. It is taken out and notified to the screen transmission control unit 58.

The screen transmission control section 58 retrieves the screen data of the screen having the notified screen identification name from the screen library 56, and transmits it to the display terminal 60 for redisplay.

FIG. 2(a) is a diagram showing an example of a tree structure of transaction processing. Transactions T11, T22, T33, as shown by thick lines in (a) of FIG.
,...,Tnn, when transaction processing progresses, transaction T11 and transaction T3
At the time of processing step 3, a screen history collection request ((a) in Figure 2) is made.
(indicated by a star) has been issued.

FIG. 2B is a diagram illustrating the relationship between the temporary file management table 54 and the temporary file 55 when the process indicated by the bold line in FIG. 2A is performed.

Next, the operation of the arbitrary screen history method of this embodiment will be explained in more detail based on an example shown in FIGS. 2(a) and 2(b).

In the process of transmitting the screen P11 of the transaction T11, when the transmission of the screen data of the screen P11 to the display terminal 60 is completed, the screen transmission control section 58 calls the screen registration means 51.

The screen registration means 51 temporarily registers the screen identification name N11 at the head of the temporary file management table 54. The temporary registration position is always stored in the temporary registration position pointer a.

Next, when the terminal operator inputs a screen history acquisition request while the screen P11 is being displayed on the display terminal 60, the screen reception control section 59 calls the data mixing registration means 52.

The data mixing registration means 52 uses the latest screen identification name N registered in the temporary file management table 54.
11 from the screen library 56, and the extracted screen data of the screen P11 and input data are mixed and registered at the beginning of the temporary file 55 as screen history information D11. Then, the data mixing registration means 52 permanently registers the screen identification name N11 at the head position of the temporary file management table 54 pointed to by the temporary registration position pointer a, together with the registration position of the screen history information D11 in the temporary file 55.

When the processing of transaction T11 is completed, the screen identification name N22 of screen P22 is temporarily registered in the temporary file management table 54 in the same way in the processing of the next transaction T22. The position in the temporary file management table 54 where the screen identification name N22 is temporarily registered is the position immediately after the position where the screen identification name N11 is officially registered. In the process of transaction T22, since no screen history collection request is issued, the actual registration of screen identification name N22 by data mixing registration means 52 is not executed.

Next, screen P3 of transaction T33
In the transmission process No. 3, when the transmission of the screen data of the screen P33 to the display terminal 60 is completed, the screen transmission control section 58 calls the screen registration means 51.

The screen registration means 51 temporarily registers the screen identification name N33 in the second position of the temporary file management table 54 pointed to by the temporary registration position pointer a (the same position as the previous temporary registration position of the screen identification name N22). , this makes the screen identification name N
22 provisional registration will be invalidated.

Next, when the terminal operator inputs a screen history acquisition request while the screen P33 is being displayed on the display terminal 60, the screen reception control section 59 calls the data mixing registration means 52.

The data mixing registration means 52 uses the latest screen identification name N registered in the temporary file management table 54.
33, the screen data of the screen P33 is extracted from the screen library 56, and the extracted screen data of the screen P33 and input data are mixed and registered in the temporary file 55 as screen history information D33. Then, the data mixing registration means 52 transfers the screen identification name N33 to the temporary registration position pointer a.
The screen history information D33 is permanently registered in the second position of the temporary file management table 54 pointed to by the screen history information D33 along with the registered position in the temporary file 55.

In this way, the screen data, input data, and screen identification name for which a screen history acquisition request has been issued are registered in the temporary file 55 and the temporary file management table 54 in one-to-one correspondence. Note that, when the capacity of the temporary file management table 54 and the temporary file 55 reaches full capacity at the time of registration, the screen registration means 51 and the data mixing registration means 52 return to the top position and store the temporary file management table 54 and the temporary file 55. Use cyclically.

If a screen history display request is issued at the time of transaction Tnn, the screen reception control section 59 calls the screen extraction means 53.

The screen extracting means 53 temporarily extracts the screen identification name and screen history information registered at the first real registration position going back from the current temporary registration position of the temporary file management table 54 indicated by the temporary registration position pointer a. The registered position of the file 55 is taken out, and screen history information is extracted from the temporary file 55 and passed to the screen transmission control section 58. In addition, the screen extracting means 53 stores the first registered position in the registered position pointer b, and when a subsequent screen history display request is issued, the screen extracting means 53 stores the first registered position in the registered position pointer b. The screen with the screen identification name of the position is to be displayed. Note that when the screen extraction means 53 moves the registered position pointer b backward, if it reaches the head position of the temporary file management table 54, it returns to the final position and uses the temporary file management table 54 cyclically.

The screen transmission control section 58 controls the screen extraction means 53
The screen data mixed with the input data of the screen history information passed from is sent to the display terminal 60 and displayed.

When the terminal operator issues a screen history display termination request to the display terminal 60, the screen reception control section 59 calls the screen extraction means 53.

The screen extraction means 53 stores the latest information in the temporary file management table 54 pointed to by the temporary registration position pointer a indicating the screen data of the screen Pnn displayed on the display terminal 60 when the screen history display request was first issued. The screen identification name Nnn registered in is extracted and notified to the screen transmission control unit 58.

The screen transmission control unit 58 retrieves the screen data of the screen Pnn having the notified screen identification name Nnn from the screen library 56, and transmits it to the display terminal 60 for redisplay.

[0050]

Effects of the Invention As explained above, the present invention allows the terminal operator to change the current screen at any time while the terminal operator is proceeding with transaction processing in an interactive manner with the screen displayed on the display terminal. By making it possible to collect screen data and input data as screen history information, and redisplaying the collected screen history information on the display terminal at any time, it is possible to reduce the number of requests from terminal operators that occur during transaction processing. Business programs no longer need to consider special handling methods for transaction processing progress confirmation requests, making it easier to design business programs that process multiple transactions.
This has the effect of reducing the burden on business program designers and developers during development.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a transaction processing system to which an arbitrary screen history method according to an embodiment of the present invention is applied.

FIG. 2(a) is a diagram illustrating an example of a tree structure of transaction processing to which the arbitrary screen history method of this embodiment is applied; FIG. 2(b) is a diagram illustrating the relationship between temporary files and a temporary file management table; This is a diagram.

[Explanation of symbols]

50 Execution control unit 51 Screen registration means 52 Data mixing registration means 53 Screen extraction means 54 Temporary file management table 55 Temporary file 56 Screen library 57 Business program 58 Screen transmission control section 59 Screen reception control section 60 Display terminal 70 Host computer

Claims (1)

[Claims] Claim 1: In a transaction processing system that shows the progress of transaction processing on a display terminal in response to a request from the display terminal, the screen identification name of the screen displayed on the display terminal while the transaction processing is in progress is registered in a temporary file management table. and screen registration means for converting input data input to a screen displayed on a display terminal in response to a screen history collection request from a display terminal into screen data with a screen identification name most recently registered in the temporary file management table. a data mixing registration means for mixing and registering the data into a temporary file; and input data from the temporary file is mixed based on a screen identification name registered in the temporary file management table in response to a screen history display request from a display terminal. An arbitrary screen history method characterized by comprising a screen extraction means for extracting screen data.