JPH10283314A - Transaction processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transaction processing system in which transferred information amounts from a host computer to a terminal equipment can be suppressed, an output message and the validity of screen definition can be instantaneously recognized by an application program at the host computer side, and the maintenance of the screen definition information can be excellent. SOLUTION: Screen definition which can be shared by a host computer and a terminal equipment is preliminarily stored in a screen definition storage file 8 by a screen definition registering means 7. An output message editing means 6 preliminarily confirms the output message and the validity of the screen definition by the screen definition storage file 8, and then transmits the output message. When the screen definition is not valid, the output message editing means 6 transfers an error information to an application program 4. A terminal equipment 1 displays a screen corresponding to the received output message according to the screen definition storage file 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a transaction processing system in which a host computer executes transaction processing in response to a request from a terminal device.

[0002]

2. Description of the Related Art In a transaction processing system, a terminal device and a host computer are connected via a communication line, a message requesting transaction processing is input from the terminal device to the host computer, and an application program in the host computer is executed. The resulting output message (output message displayed on a certain screen) is output to the terminal device.

FIGS. 3, 4 and 5 are block diagrams each showing a conventional configuration example of this type of transaction processing system. In these figures, the host computer includes a message input means 2 for receiving a message requesting transaction processing from the terminal device 1, and a transaction execution control means 3 for controlling the execution of the corresponding application program 4 in accordance with the received message. Message output means 6 for supplying an output message as a result of the transaction processing to the terminal device 1.
And The screen indicating the result of the transaction processing is created in accordance with the screen definition storage file 8 registered by the screen definition registration means 7, and the handling of the screen definition storage file 8 differs between systems.

First, the transaction processing system shown in FIG. 3 has a screen definition storage file 8 in which screen definition information is stored, which is unique to the host computer.
In this transaction processing system, an output message editing unit 5 in a host computer performs definition of a screen to be output to the terminal device 1 and generation of a screen object according to an output message that is an execution result of the application program 4.

Therefore, in this system, the message output means 6 transmits a screen object indicating an output message as a result of the transaction processing to the terminal device 1, and the output message increases, so that the amount of data transmitted through the communication line is increased. And may cause a delay in the response of the transaction processing.

Next, in the transaction processing system shown in FIG. 4, each of the host computer and the terminal device 1 has a screen definition storage file 8 in which screen definition information is stored.

In this transaction processing system,
Since the same screen definition information needs to be registered in a plurality of different screen definition storage files 8, maintenance of the screen definition information becomes difficult. Further, if different screen definition information is mistakenly registered in the screen definition storage file 8 between the host computer and the terminal device 1 when creating and registering the screen definition information, there is a risk that the transaction processing system cannot operate normally. there were.

Next, in the transaction processing system shown in FIG. 5, the terminal device 1 has a screen definition storage file 8 in which screen definition information is stored.

In this transaction processing system,
Although the terminal device 1 generates and displays a screen object corresponding to the output message from the application program 4, it is impossible for the application program to immediately recognize the screen definition and the validity of the output message in this case. There was a problem.

[0010]

As described above,
There have been various types of conventional transaction processing systems, but all of them have had the above-mentioned various problems due to handling of screen definition information.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can minimize an output message from a host computer to a terminal device. An application program on the host computer can output an output message and its screen. It is an object of the present invention to provide a transaction processing system capable of immediately recognizing the validity of a definition and having excellent maintainability of screen definition information.

[0012]

The invention according to claim 1 is
In a transaction processing system that sends a message requesting transaction processing from a terminal device to a host computer, the host computer executes an application program according to the message, and outputs an output message as an execution result to the terminal device, A screen definition registration unit for registering a screen definition sharable in a terminal device in a screen definition storage file, wherein the host computer, before transmitting the output message, communicates with the host computer in the screen definition storage file. Based on the screen definition that can be shared by the terminal device, determine the validity of the screen definition and the output message, send the output message to the terminal device when the validity is recognized, and when the validity is not recognized Error notification Delivered to an application program, the terminal device displays a screen corresponding to the output message received from the host computer in accordance with a screen definition sharable by the host computer and the terminal device in the screen definition storage file. The gist of the transaction processing system is as follows.

According to a second aspect of the present invention, there is provided the transaction processing system according to the first aspect, wherein the terminal device includes the screen definition registration unit.

According to a third aspect of the present invention, there is provided the transaction processing system according to the first aspect, wherein the host computer includes the screen definition registering means.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG.
1 shows a configuration of a transaction processing system according to an embodiment of the present invention. In these transaction processing systems, information representing a screen definition that can be shared between the host computer and the terminal device is created in advance by the screen definition registration unit 7 and registered in the screen definition storage file 8. Here, the screen definition storage file 8 stores a plurality of screen definitions. The output message editing means 5 in the host computer transmits the output message to the terminal device 1 via the message output means 6, but at this time, refers to the screen definition storage file 8 and checks the screen definition and the validity of the output message. The transmission is determined by confirming. In the transaction processing system shown in FIG. 1, the terminal device 1 has the screen definition registration unit 7, whereas in the transaction processing system shown in FIG. 2, the host computer has the screen definition registration unit 7. There is no difference between the two systems in regard to the above.

Next, during the operation of the transaction processing system, certain processing (processing by executing the application program 4) is performed based on a message requesting the transaction processing from the terminal device 1, and the output as the execution result is output. An embodiment of the present invention will be described for a series of operations when a message is output to the terminal device 1.

When a message requesting transaction processing is input from the terminal device 1 to the host computer, the message input means 2 receives the message and sends the message to the transaction execution control means 3.
Pass to.

The transaction execution control means 3 transfers the message passed from the message input means 2 to an application program 4 relating to a task to be processed.
The execution of the application program 4 is controlled, and an output message for the terminal device 1, which is the execution result of the application program 4 specified by the application program 4, is passed to the output message editing means 5.

The output message editing means 5 executes the application program 4 passed by the transaction execution control means 3 from the screen definition storage file 8 which can be shared by the terminal device and the host computer registered by the screen definition registration means 7. Based on the resulting output message for the terminal device 1 and its screen definition, the validity of the output message and the screen definition is checked, and the validity is immediately notified to the application program 4. Then, when the output message editing unit 5 confirms the validity (when the error is not notified to the application program 4), the output message editing unit 5 passes the output message for the terminal device 1, which is the execution result of the application program 4, to the message output unit 6.

The message output means 6 passes the output message for the terminal device 1 which is the execution result of the application program 4 whose validity has been confirmed by the output message editing means 5 to the terminal device 1.

The terminal device 1 uses an output message for the terminal device 1, which is an execution result of the application program 4 passed by the message output means 6, and a screen definition storage file 8 that can be shared by the host computer and the terminal device. Then, a screen object to be displayed is generated and displayed.

[0022]

As is apparent from the above description, according to the present invention, the following effects can be obtained. (1) A screen definition that can be shared by the host computer and the terminal device is created and registered in advance, and the host computer determines the validity of the screen definition for the output message from the application program on the host computer. In this case, the application program is immediately notified, and the generation and display of the screen object according to the output message that is the execution result of the application program are performed on the terminal device side. Therefore, the output message from the host computer to the terminal device is minimized. And the application program on the host computer can immediately recognize the validity of the output message and the screen definition. Therefore, the transmission control efficiency between the host computer and the terminal device can be improved without impairing the operability of the application program. (2) Maintainability of screen definition information is improved because it is not necessary to have a screen definition storage file in each of the host computer and the terminal device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a transaction processing system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a transaction processing system according to another embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a conventional transaction processing system.

FIG. 4 is a block diagram showing a configuration of a conventional transaction processing system.

FIG. 5 is a block diagram showing a configuration of a conventional transaction processing system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal device 2 Message input means 3 Transaction execution control means 4 Application program 5 Output message editing means 6 Message output means 7 Screen definition registration means 8 Screen definition storage file

Claims (3)

[Claims] A transaction processing system for sending a message requesting transaction processing from a terminal device to a host computer, executing the application program in accordance with the message, and outputting an output message as an execution result to the terminal device. , A screen definition registration unit for registering a screen definition sharable by a host computer and a terminal device in a screen definition storage file, wherein the host computer stores the screen definition in the screen definition storage file prior to transmitting the output message. Based on the screen definition that can be shared by the host computer and the terminal device, the screen definition and the validity of the output message are determined, and if the validity is recognized, the output message is sent to the terminal device, Is not allowed Passes an error notification to an application program, and the terminal device displays a screen corresponding to the output message received from the host computer according to a screen definition sharable by the host computer and the terminal device in the screen definition storage file. A transaction processing system, characterized in that: 2. The transaction processing system according to claim 1, wherein the terminal device includes the screen definition registration unit. 3. The transaction processing system according to claim 1, wherein the host computer includes the screen definition registration unit.