JPS6386041A - File updating method - Google Patents

Abstract

PURPOSE:To reduce the load of a user program by displaying the contents of a 2nd file corresponding in 1:1 to the user file on a screen to update those contents with the data received from an input part and then updating the contents of the corresponding user file. CONSTITUTION:The display format information AA-ZZ corresponding to the user files A-Z stored in a file device 20 are stored in a picture library file device 50. Then a control program 1 prepares temporary files a-d designated by a user when a user program 2 is started and reads the data to be updated out of the files A-D respectively to read out the attribute information on the corresponding information AA-DD. These read-out data are stored in the files a-d and the requested file (a) is displayed on a terminal 30 and updated as necessary at the input part of the terminal 30. Then the contents of the corresponding file A are updated.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a file updating method.

[Conventional technology]

In the conventional method, by limiting the number of files to be referenced and updated to two, the screen on the terminal is divided into two areas, and each area corresponds to the file to be processed. For processing purposes, some fileroutes are provided for each file.

Therefore, in order to process three or more files, the user program must be devised so that two areas on the terminal screen and two partial files are each shared by a plurality of files.

[Problem that the invention seeks to solve]

Normally, the number of files that are subject to record reference/update processing at a terminal is not limited to just two, but various files may be subject to processing at the request of the terminal operator.

In the conventional method described above, when three or more files are to be processed, one partial file is shared for multiple refile operations, so reference/update processing is performed at the request of the terminal operator. When changing the target file.

It is necessary for the program to rewrite the contents of the file each time. This rewriting process re-registers some of the records necessary for reference/update processing from the newly requested file, and it is necessary to write a user program to perform this process. Yes, it becomes a burden on Grograma. Moreover, the efficiency of the entire process is reduced.

[Means for solving problems]

The method of the present invention includes a first processing means for executing a user program and a control program, a first file storage means storing a plurality of first files, and a first processing means for executing a user program and a control program;
A second file that is provided in one-to-one correspondence with the first file specified by a program and stores a second file that has at least a copy of the contents of the corresponding first file.
and a second processing means having a display screen and an input section, and based on the control program, the first processing means executes the display request based on the display request from the user program. a first process of displaying the contents of the second file specified by on the display screen of the second processing means; and a first process of displaying the contents of the second file specified by a second process of updating the contents of the second file currently being displayed on the second file storage means; and when an instruction to end the update process is given from the input section of the second processing means. and a third process of updating the contents of the corresponding first file with the contents of the second file.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

Referring to FIG. 1, one embodiment of the present invention includes a host computer 0 that executes a user program 2 and a control program 1, a terminal 30, and a file storage R20 that stores user files A-Z. , a file device 40, and a screen library file device 50 that stores a plurality of display format information AA-ZZ provided for user files A-1-j. Display format information AA-ZZT: Layout information that defines the layout on the screen when the contents of the corresponding user files A to Z are displayed on the display of the terminal 30, and the record length of the record of the corresponding user file. Contains information and complementary information (number of data types, etc.).

Next, the operation of this embodiment will be explained.

First, at the start of execution of the user program 2, the control program prepares partial file control tables as many as the number specified by the user in the execution JCL (JIP control language). For example, if the specified number is 4, four side leg tables aaxdd are prepared. Next, control is transferred to the user program 2, and the program 2 transfers four partial files a - d, the same number as the specified number 4, to the file device 40.
Instructs the control program l to secure it within. When the control program 1 secures some files a%-d, the user program 2 reads data of each record to be referenced and updated from each user file A-D and passes it to the program 1. After this, the program] will display the display format information A corresponding to these user files A-D.
The record length information and attribute information contained in the A-DD are read from the file device 50. Based on these record length information and attribute information, the control log 2m 1 stores the data of each record passed from the program 2 in a file reserved in the file device 40 for each user file A-D that they write. The data are stored in the subfiles a% and d, respectively. At this time, the control program 1 is
Information indicating the corresponding user dispute files A to D (for example, files A to D) is stored in control tables aa to dd provided for the corresponding
D file name). In this way, the preprocessing is completed.

Next user program 2 has one user file,
For example, user file A is selected and a display request to the terminal 30 is issued to the control program. - Program 1 displays display format information A corresponding to user file A.
While reading the layout information of the screen containing AK from the device 50, the control tables aa to dd are checked, and it is learned that the control table aa, which has information indicating file A, partially corresponds to file a. The data of each record is read out from the , and the data of each record is displayed on the display screen of the terminal 30 configured based on the layout information. The operator of the terminal 30 updates the data of the displayed record, if necessary, using the input section (keyboard, etc.) of the terminal 30. When the record of the terminal 30 is updated, the system program updates the data of the corresponding record of the time file a. After completing the update process for file a, when the operator of terminal 3 wishes to refer to or update the contents of another user's file C, the operator of terminal 30 transmits this to user log 2 via the control program. ,do. User program 2
issues a display request to the control program 1 for the requested user file C. Thereafter, in the same manner as described above, the update process can be performed while displaying each record of the partial file C on the display screen of the terminal 30, which is configured by the layout information included in the display format information CC.

The above process is repeated until the operator of the terminal 30 gives an instruction to end the process. When a termination instruction is given to the user program 2 from the terminal 30 via the control program, the user program 2 reads the records modified by the terminal operator from the respective files in the file device 40 and records them in the file device 20. corresponding user/
Update the contents of a file.

〔Effect of the invention〕

As described above, the present invention utilizes some files corresponding to each file in the process of sequentially displaying screens with different frameworks for each file and performing reference/update processing at the request of the terminal operator. avoid sharing,
Eliminating the process of rewriting some files by the user program has the effect of reducing the burden on the user program.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Claims (1)

[Scope of Claims] A first processing means for executing a user program and a control program; a first file storage means storing a plurality of first files; and at least one of the first files specified by the user program. a second file storage means for storing at least one second file provided in one-to-one correspondence with the first file and having at least a copy of the contents of the corresponding first file; a display screen and an input; and a second processing means having a section, based on the control program, the first processing means: based on a display request from the user program, the second file specified by the display request. a first process of displaying the contents of the second processing means on the display screen of the second processing means; and a first process of displaying the contents of the second processing means on the display screen of the second processing means; a second process of updating the contents of a file on the second file storage means; and responding with the contents of the second file when an update process end instruction is given from the input section of the second processing means. and a third process of updating the contents of the first file.