JPH0294944A - Terminal attribute defining/referring system - Google Patents

Abstract

PURPOSE:To dynamically change the attribute of a terminal even while an one-line program is executed by registering terminal attribute information correspondingly to the terminal by a terminal attribute registering means which is never managed by a communication control means. CONSTITUTION:A terminal attribute storing means 20 stores the pieces of the terminal attribute information correspondingly to the terminal names of terminals 201-20m, and a terminal attribute registering means 1 registers the pieces of the terminal attribute information in the terminal attribute storing means 20 correspondingly to the terminal names of the above-mentioned terminals. Further, a communication control means 2 transfers data between the terminals and on-line programs 31-3n, and a terminal attribute retrieving means 4 retrieves some pieces of the terminal attribute information of some terminals inquired from the on-line programs out of the pieces of the terminal attribute information stored in the terminal attribute storing means 20. Thus, the attributes of the terminals can be changed while the on-line programs are executed, and it becomes sufficient to correct only a necessary on-line program when a terminal type is to be newly added.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a terminal attribute definition/reference method, and particularly to a terminal attribute definition/reference method in an online system in which a terminal is controlled from a host computer [Prior Art] Host In an online system that controls a terminal from a computer, control may differ depending on the attributes of the terminal (such as what control codes can be used, whether images can be displayed, etc.), so online programs When controlling a terminal, it is necessary to know the attributes of the terminal to be controlled.

Conventionally, in this type of terminal attribute definition/reference method, the terminal attribute definition is made available to all online programs in the host computer at the start of the online program, and is managed by communication processing means in the host computer. This is achieved by indirectly defining a device type that represents the attributes of the terminal for each terminal in a fixed storage area, and by providing a terminal attribute table that stores terminal attribute information for each device type inside each online program. was.

Also, to refer to the attributes of a terminal, when the online program connects a session with the terminal, the online program searches the 8M storage area described above based on the terminal name of the terminal that connected the session, and connects the session. Receive the terminal type to which the connected terminal belongs, search the terminal attribute table inside the online program using the retrieved terminal type as a key, and refer to the terminal attribute information of the terminal type to which the connected terminal belongs. It was done by doing.

[Problem to be solved by the invention]

In the conventional terminal attribute definition/reference method described above, the device type that represents the terminal attributes is stored in a fixed storage area managed by the communication processing means, so it is not necessary to change the attributes of one terminal. Even when changing the device type of a terminal, the communication processing means must be stopped, and all online programs in the host computer must be stopped accordingly.

Additionally, since each online program managed a terminal attribute table that stored terminal attribute information for each terminal type, all online programs had to be modified in order to add a new terminal type to the online system. , the drawback is that there are subtle discrepancies in the interpretation of terminal types among online programs.

The above disadvantages become more pronounced as the host computer system of the online system becomes larger.

In view of the above points, it is an object of the present invention to make it possible to change the attributes of a terminal when executing an online program, and to add a new terminal type, the online program only needs to be modified for the necessary online program. The purpose of this invention is to provide a definition/reference method for terminal attributes.

[Means to solve the problem]

The terminal attribute definition/reference method of the present invention is provided in an online system in which a plurality of terminals are controlled from a host computer, including a terminal attribute storage means for storing terminal attribute information corresponding to the terminal name of the terminal, and a terminal attribute storage means for storing terminal attribute information corresponding to the terminal name of the terminal. Terminal attribute registration means for registering terminal attribute information corresponding to the terminal name of the terminal; communication processing means for transferring data between the terminal and the online program; and terminal attribute information stored in the terminal attribute storage means. and a terminal attribute search means for searching terminal attribute information of the terminal inquired from the online program.

[Effect]

In the terminal attribute definition/reference method of the present invention, the terminal attribute storage means stores terminal attribute information corresponding to the terminal name of the terminal, and the terminal attribute registration means stores terminal attribute information in the terminal attribute storage means corresponding to the terminal name of the terminal. The communication processing means transfers data between the terminal and the online program, and the terminal attribute search means retrieves the terminal attribute information of the terminal inquired from the online program from among the terminal attribute information stored in the terminal attribute storage means. Search for.

〔Example〕

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

FIG. 1 is a block diagram showing the configuration of an online system to which a terminal attribute definition/reference method according to an embodiment of the present invention is applied. This online system includes a host computer system 100 and a plurality of terminals 201 and 202.
, =z 20m (m is a positive integer). The host computer system 100 includes a host computer 10 and a terminal attribute storage means 20.

The host computer 10 includes a terminal attribute registration means 1, a communication processing means 2, and a plurality of online programs 31.3.
2. ..., 3n (n is a positive integer), and a terminal attribute search means 4.

FIG. 2 is a diagram showing an example of terminal attributes stored in the terminal attribute storage means 20. In the terminal attribute storage means 20,
Terminal name 2 of terminals 201, 202, .=, 20m
Terminal attribute information 22 of terminals 201, 202, . . . , 20 is stored in correspondence with terminal 1.

Next, the operation of the terminal attribute definition/reference method of this embodiment configured as described above will be explained.

First, enter the terminal 20c (c is a positive integer) into the online system.
We will explain the operation when it is newly introduced.

For example, the newly introduced terminal 20c has the terminal name CC
In C, the display area is 80ffi x 24 lines, kanji.

Assuming that the display terminal is capable of displaying images and graphs and has a screen dot density of 1120 dots horizontally x 720 dots vertically, the terminal attribute registration means 2 stores the terminal name 21 "CCC" of the terminal 20c and the terminal name 21 "CCC". Terminal attribute information 22 corresponding to ``Display terminal 2 display area 8
0 (digit) x 24 (row).

Kanji YES, image YES, graph YES, dot density 1120 (horizontal) x 720 (vertical) dots” are registered.

Next, the operation when a session is connected between the online program 3k (k is a positive integer between 1≦ and ≦n) and the above-mentioned terminal 20c via the communication processing means 2 will be described.

First, the communication processing means 2 notifies the online program 3k of the terminal name 21"CCC" of the terminal 20c.

When the communication processing means 2 notifies the terminal name 21 "CCC", the online program 3 includes the terminal name 21 "CCC".
In order to know how to control the terminal 20c of ", the terminal attribute search means 4 is activated and the terminal name 2pi CCc" is passed.

When the terminal name 21"ccc" is passed from the online program 3k, the terminal attribute search means 4 selects the terminal name 21"ccc".
” is used as a key to search the terminal attribute storage means 2o. “C
When a terminal name 21 matching "CC" is found, the terminal attribute search means 4 returns terminal attribute information 22 corresponding to the terminal name 21 "CCC" to the online program 3k.

When the terminal attribute information 22 defined by the terminal name 21 "CCC" is returned from the terminal attribute search means 4, the online program 3 controls the terminal 20c according to the returned terminal attribute information fI122.

〔Effect of the invention〕

As explained above, the present invention allows terminal attribute information to be registered in a terminal-compatible manner by the terminal attribute registration means that is not managed by the communication processing means, so that the terminal information can be dynamically registered even when an online program is running. This has the effect that attributes can be changed.

Furthermore, since all online programs can refer to the same terminal attribute information stored in the terminal attribute storage means corresponding to the terminal name of the terminal, there is an effect that consistency can be maintained in the method of recognizing the attributes of the terminals.

Furthermore, by making it possible to refer to the terminal attribute information for each terminal, there is an effect that if there is a change in the attributes of a certain terminal, there is no need to modify online programs that do not refer to the changed attribute elements. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an online system in which the terminal attribute definition/reference method according to an embodiment of the present invention is applied, and FIG. 2 shows the terminal attributes stored in the terminal attribute storage means in FIG. 1. It is a figure which illustrates the content of an attribute. In the figure, ■...Terminal attribute registration means, 2...Communication processing means, 4...Terminal attribute search means, IO...20...21・ ・ ・ 22・ ・ 31, 32 100 ・ ・ ・ ・ ・ Host computer, terminal attribute storage means, ・ ・ Terminal name, ・ ・ ・ Terminal attribute information, ・ 3n・Online program, ・ ・ ・Host computer system..., 20m...terminal.

Claims (1)

[Scope of Claims] An online system in which a plurality of terminals are controlled from a host computer, comprising: a terminal attribute storage means for storing terminal attribute information corresponding to the terminal name of the terminal; and a terminal attribute storage means storing terminal attribute information corresponding to the terminal name of the terminal. a terminal attribute registration means for registering terminal attribute information in the terminal attribute information; a communication processing means for transferring data between the terminal and the online program; 1. A terminal attribute definition/reference method, comprising: a terminal attribute search means for searching terminal attribute information of an inquired terminal.