Method and device to transfer data by buffer technique in enterprise application frame

Abstract

The invention discloses a method for invoking data using buffer technology in an enterprise application framework, comprising: a pre-set interceptor intercepting a caller's invocation of a business method; the interceptor judges whether the business method has been executed, and if so, The interceptor retrieves the data that needs to be called from the buffer and returns it to the caller, otherwise, it returns to the process in which the caller calls the business method, wherein the business method directly returns the executed result to the For the caller, when the business method directly returns the executed result to the caller, the interceptor stores the executed result of the business method in the buffer. The present invention does not need to modify the original code and change the original business process too much, which not only reduces the workload of developers and maintenance personnel, but also can be based on the results after the actual operation of the system without considering buffering during the development period. Flexible adjustment of buffer execution, especially suitable for system tuning.

Description

technical field [0001] The invention relates to the technology of enterprise application framework, in particular to the technique of invoking data in the enterprise application framework. Background technique [0002] At present, there are various types of enterprise application frameworks, such as enterprise application frameworks in J2EE and enterprise application frameworks in .net, and each framework will have the technology of invoking data. Taking the enterprise application architecture in J2EE as an example, this architecture basically adopts the N-tier architecture pattern of MVC (Model-View-Controller, Model-View-Controller), and its typical pattern is as follows: figure 1 shown. Among them, Servlet is a Server (server) program written in Java, which has nothing to do with protocols and platforms. Servlet runs in Java-enabled Web Server. Servlet can dynamically expand the capabilities of Server and provide Web services in request-response mode. ; JSP is the abbre...

AI Technical Summary

Problems solved by technology

[0007] 1. Every method that requires buffering needs to introduce such complex buffering code, which will not only lead to a lot of code duplication, but also mix the code that processes business logic with the buffered code, which will bring many difficulties to code maintenance;

[0008] 2. Designers must change the original data call process during development and introduce cache (cache memory) objects that have nothing to do with business logic;

[0009] 3. If you need to use such a buffer method to optimize the process of data calls that have already been executed, you must obtain the corresponding source code, add the buffer implementation, and modify all references to this method. These conditions are often used in practical applications is not available

[0010] 4. If the performance of the Cache cannot meet the requirements, no modification can be made without the code. If you need to remove the buffer in the method, you must modify the source code to remove the buffer, and recompile and release. This process violates the OCP (Open- Close Principle, open and close principle)

[0011] From the above disadvantages, image 3 The biggest disadvantage of using the buffering technology to call the data method shown is that buffering code is introduced into each business method that needs buffering, resulting in the mixing of business logic code and buffering code, which is not conducive to code maintenance and modification. In essence, this Method implements an intrusive buffer that violates OCP

In addition, this shortcoming is not unique to the J2EE enterprise architecture, and this problem also exists in other architectures

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