JP2002041290A - Business processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a business processing system that is highly efficient in software development work and operates on a C/S system. SOLUTION: In a client, a screen process means handles the screen process related to GUI, a business C process means informs its own information to the screen process means and performs the business process C related to GUI in the business processes, and a business R process means performs the business process R related to the communication process to a server in the business processes. In a server, the business S process means performs the business process S related to the requirement process in the business processes based on the requirement from the business process R class. The business C process means, the business R process means, and the business S process means take over the data or the method from the business common class in the client.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a business processing system, and more particularly, to a client / server (hereinafter, referred to as a client / server).
C / S), which is a business processing system with high software development work efficiency.

[0002]

2. Description of the Related Art Many business processing systems employ a three-tier model including a client, an application (hereinafter, referred to as an AP) server, and a database (hereinafter, referred to as a DB) server. Increases flexibility. For software development on the AP server side, a business processing system based on object orientation such as EJB (Enterprise JavaBeans) is becoming widespread.

In software development in a conventional business processing system, information concealment and processing allotment are not modeled for processes that require cooperation between a client and an AP server, and are left to the discretion of each system, and are performed independently. Software development was taking place.

[0004]

[0005] Even when developing a part of the software on the client side, the AP developer can use the A
Since it is necessary to understand information such as the mechanism and operation of the P server and newly design and develop corresponding software, the work efficiency of software development is low.

[0005] Further, in the software development of the business system, the flexibility of the business logic distribution between the client and the AP server and the G
There are development issues such as UI (Graphical User Interface) independence. In the conventional C / S system, since each system independently solves a development problem, there is also a problem that a double investment occurs with this.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art,
A business processing system operated on the S system,
By modularizing each process, the information required by the developer can be limited, and by increasing the versatility of each module, double investment can be suppressed, thereby reducing the work efficiency of software development. The purpose is to provide a high-level business processing system.

[0007]

In order to achieve the above object, a business processing system according to the present invention operates on a client / server system and realizes a business processing centered on a GUI. In the system, a screen processing unit arranged on the client and performing a screen processing related to a GUI, and a self-information is notified to the screen processing unit arranged on the client and performs a business process C related to the GUI in the business process. A task C processing means and a task R arranged on the client and performing a task processing R relating to a communication process with a server in the task processing;
The business C processing means, comprising: a processing means; and a business S processing means arranged on a server and performing a business processing S relating to a request processing in the business processing based on a request from the business R processing means. The business R processing means and the business S processing means are provided with a business common class that inherits data or method.

The business processing system of the present invention divides a target business processing function into one parent class and three subclasses based on object orientation and distributes each class to a client and a server. Functions can be easily extended or changed, the functions of the business processes to be arranged in the C / S system can be easily distributed, and information is concealed in the screen processing, the business processing, and the communication processing, and the mutual influence is small.

The business processing system according to the present invention further comprises DBAPI processing means arranged on the server for performing DBAPI processing for accessing a database via an API, and the request processing may be business processing related to the DBAPI processing. it can. In this case, access to the database is performed unconsciously.

It is also a preferred embodiment of the present invention that the DBAPI processing means is means for accessing a general-purpose database that is not based on object orientation. In this case, general database access processing can be used.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the object orientation will be described. Object orientation is the idea of creating software as a collection of objects corresponding to real world objects. An object internally has data representing its own state and a method that is a program for operating itself. Access to the data held by the object is performed by encapsulating the data (encapsulatio
n) through the methods of that object. In object orientation, a collection of objects having the same properties and methods is called a class.
An instance (inst
ance). When an instance receives a message, it inherits the method and data from the class (in
heritance), invoke methods and access data.

A business processing system according to the present invention will be described below with reference to the drawings based on an embodiment of the present invention. FIG. 1 is a block diagram showing an outline of a CRS model which is a business processing system according to an embodiment of the present invention. The CRS model of this embodiment is adopted in business processing software, adopts object orientation,
This is an effective method for system software development. CR
The S model includes a screen process 1, a business C process 2, a business R process 3, a resident session window process 4, a business S process 5, and a DBAPI process 6. The screen processing 1, the business C processing 2, the business R processing 3, and the processing 4 of the resident session window operate on the client, and the business S processing 5 and the DBAPI processing 6 operate on the AP server.

The screen processing 1 performs processing related to screen display and event processing to provide a GUI environment, inherits data of a higher class for screen common processing, and performs business C processing 2 for business dedicated processing. , The information of the remote method is hidden. The GUI is an operation environment in which the operation of a computer is visualized using graphics. The screen processing on the client side and the DB access processing on the AP server side are independent of each other, and minimize the effects of mutual changes.

The business C process 2 performs business logic processing on the client, inherits the remote method from the business R class, and hides the remote method information from the screen processing 1. The task R process 3 converts the remote method into a CI format (a communication processing format with a server determined by the format of the application server) and starts the process. Process 4 of the resident session window converts the CI format into a remote method and activates it. Information on the C / S communication (RMI) and the session management method (Thread) of the server is hidden.

The business S process 5 performs a remote method process, and performs all DB access processes via the DBAPI process 6. DBAPI processing 6 is for all DB
This is processing related to access and processing related to mutual structure conversion between the DB table structure and object attributes. A
The PI (Application Programming Interface) is a specification for reading a function prepared in the operation system from an AP program. DBAPI processing 6
Hides information about DB access.

The DBAPI process 6 is a process relating to all DB accesses and a process relating to mutual structure conversion between a DB table structure and an object attribute. The DB access always goes through the DBAPI processing 6, and the change in the data configuration of the DB and the change accompanying the RDB / ODB switching are localized. API (Application Programming Interface)
ace) is a specification for reading a function prepared in the operation system from the AP program.

FIG. 2 is an object relation diagram showing a basic class configuration of a specific example of the CRS model of FIG. The basic class configuration shown in the figure is a screen processing class 11 of class name BusinessGui and a business C processing class 1 of class name BusinessC.
2. Business R processing class 13 with class name BusinessR, business common class 14 with class name Business, class name Business
Business S processing class 15 of S and class name BaDbapiStra
It is composed of a DBAPI processing class 16 composed of tegy, DBapi1, and DBapi2.

The business C processing class 12 is “BusinessC
() ”And“ Lmethod () ”are defined, and the business common class 14 defines one method of“ Rmethod (). ”The screen processing class 11, the business C processing class 12, and the business R The processing class 13 and the business common class 14 are arranged on the client side, and the business S processing class 15 and the DBAPI processing class 16 are arranged on the AP server side.

The business R processing class 13 and the business S processing class 15 are subclasses of the business common class 14. The business C processing class 12 is a subclass of the business R processing class 13. Class name DBap of DBAPI processing class 16
Both i1 and DBapi2 classes have the class name BaDbapiStrat
It is a subclass of egy. DBAPI processing class 16
Is included in a part of the business S processing class 15.

The screen processing class 11 recognizes information of the business C processing class 12, and hides information such as RMI and DB access. Interaction with the AP server is hidden from the GUI, and whether the business logic is on the AP server or the client is hidden from the screen.

The business C processing class 12 is a class for implementing light business logic and the like involving GUI and the like, and inherits method information from the business R processing class 13. The business R processing class 13 is a concealment class of communication processing for converting a method call of business processing into a predetermined remote object call and requesting the AP server. The AP server calls a method of the business S processing class 15.

The business common class 14 is an abstract class that defines a remote type method interface and the like common to business classes on the client side and the server side. The business S processing class 15 is a class having the entity of the business logic method defined by the interface in the business processing.
The business S processing class 15 performs remote method processing, and performs processing related to all DB accesses using the DBAPI processing class 16.

The business C processing class 12 is an implementation class of business logic on the client side, conceals the existence of the AP server and DB from screen processing, and performs heavy processing by A.
It is outsourced to the business S processing class 15 which is a business class on the P server, and has a role of a gateway for reducing the load on the client. Therefore, from the screen processing, this class must appear to have all necessary data and business logic. Screen processing class 11 is local (Lmetho
d) Delegate to the business C processing class 12 without considering the remote (Rmethod). The business C processing class 12 is “Rmetho
When calling the “d ()” method, the “Rmethod ()” method is inherited from the business common class 14 and activated.

The business R processing class 13 is a class for hiding the remote interface of the client.
The remote method activated via the business C processing class 12 is converted into a prescribed remote processing call format by the AP server and transferred to the AP server. Business S processing class 15
In the business process on the AP server side, particularly heavy processes are made independent of the distributed environment and encapsulated, and are entrusted from the business C processing class 12 on the client side via the business R processing class 13.

For example, the business C processing class 12 includes a screen-related process for confirming the start of construction, and uses a confirmed plan attribute as a cache of the DB. In the business S processing class 15, heavy processing such as process evaluation for confirming the start of construction is arranged. There is no change method. To localize the interface with the DB, use DBAP as the attribute.
I have an instance of I processing class 16 in has-a format (S
trategy design pattern).

According to the above embodiment, the target business processing function is divided into one parent class and three subclasses based on the object orientation and is distributed to the client and the server. Changes are easy,
The functions of the business processes to be arranged in the C / S system are easily distributed, and information is concealed in the screen processing, the business process, and the communication process, and the mutual influence is small.

Although the present invention has been described based on the preferred embodiment, the business processing system of the present invention is not limited to the configuration of the above-described embodiment, but rather the configuration of the above-described embodiment. A business processing system in which various modifications and changes have been made is also included in the scope of the present invention.

[0028]

As described above, in the business processing system of the present invention, the target business processing function is divided into one parent class and three subclasses based on object orientation, and the client, server, and Is distributed to
Functions can be easily extended or changed, the functions of the business processes to be arranged in the C / S system can be easily distributed, and information is concealed in the screen processing, the business processing, and the communication processing, and the mutual influence is small.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of a CRS model which is a business processing system according to an embodiment of the present invention.

FIG. 2 is an object relation diagram showing a basic class configuration of a specific example of the CRS model of FIG. 1;

[Explanation of symbols]

 1 Screen Processing 2 Business C Processing 3 Business R Processing 4 Resident Session Window Processing 5 Business S Processing 6 DBAPI Processing 11 Screen Processing Class 12 Business C Processing Class 13 Business R Processing Class 14 Business Common Class 15 Business S Processing Class 16 DBAPI Processing class

Continued on the front page (72) Inventor Atsushi Yoshida 2-9-32 Nakamachi, Musashino-shi, Tokyo F-term in Yokogawa Electric Corporation (reference) 5B076 DA01 DB01

Claims (3)

[Claims] Claims: 1. An operating system in a client / server system,
In a business processing system based on object orientation that realizes business processing centered on a GUI, a screen processing means arranged on a client and performing screen processing related to a GUI, and a screen processing means arranged on the client and having its own screen processing means A business C processing means for notifying information and performing a business processing C relating to a GUI in the business processing; and a business R processing means arranged on a client and performing a business processing R relating to communication processing with a server in the business processing And a business S processing unit arranged on a server and performing a business process S related to a requested process in the business process based on a request from the business R processing unit, A task characterized by a task R processing means and a task common class in which the task S processing means inherits data or methods. Management systems. 2. A DBAP arranged on a server and performing a DBAPI process for accessing a database via an API.
The business processing system according to claim 1, further comprising an I processing unit, wherein the request processing is business processing related to the DBAPI processing. 3. The business processing system according to claim 2, wherein said DBAPI processing means is means for accessing a general-purpose database that is not based on object orientation.