Software technology serial charm (b) POWERBUILDER (b) application-level object-oriented capabilities of: breeze Personal Home Page: http: //gentlebreeze.home4u.china.com
For the academic level or in terms of language itself, the object-oriented ability is more, refers to the language control capabilities that give technical personnel, such as interface, polymorphism. However, it is very different from the object-oriented ability of the application level. The most concerned that the applicant is the object-oriented ability, simply, is functional and adaptability. A skilled WINDOWS programming technician is often done is to find an existing control that has a powerful function, not how to build this object or control. Function and adaptability are the most interesting object-oriented characteristics of the application. The function is to support the basis of the entire application. Through the powerful function of object exposure, the application staff saves a lot of programming work, and is turned to the application's customization, and the application type of technicians do not need to understand the object. The internal specific mechanism is reduced by maintenance. With the complexity of application development and the continuous change of application environment, the adaptability of the subject has gradually increased to the main contradiction. The so-called adaptability is the adaptability of the environment on the environment of the application, and the same object can basically do not change the use of different environmental types, and the main task of application technicians is the configuration of environmental parameters. We know that object-oriented and component programming is reused, but most of the previous reuse models are reused in a single environment. Even the components are also reused interconnections that stay in a certain environment. For example, COM, although the language is spanning, but the application environment is still difficult to span. But the application personnel are just very concerned about this real issue. The current application has gradually developed from the desktop to a variety of environmental coexistence of desktop, server, miniature equipment. But on a specific team, its software application can achieve basically stable. For example, a team is mainly engaged in financial systems or production systems. The current challenge is that the original application environment should be expanded, extended to the Internet, desktop, miniature equipment, etc. The team had to repeatedly construct the business model that has been very clear. In fact, we have repeatedly work so much, and have led to a lot of failure, the reason is that this re-real cost is too high, and basically negates the original technology. Mode and development organization model Powerbulider powerful data computing power and data window packaging technology is prestigious, in the previous series, we will not repeat. We focus on discussing the problem of adaptability of the data window. Suppose we have designed an inventory-calculated model, and package the calculation model of the data window, what are we getting? 1. You can use this model to calculate inventory in the Client / Server structure, and perform the results on the desktop, which is the special length of the data window. 2. If the user, the amount of data is large, it needs to be transferred to the 3-layer structure, placed to the server, we can reuse the data window, simply call the results and publish it into the interface, and finally become components in the component server, It is COM or CORBA and delivers the results to the client of any calling component. 3. If other systems want to use this model, even partners in the supply chain, we can deliver this data window model to a web service through the new version of Easerver, so that other systems use this inventory calculation result. 4. We can post the result of this data window model to the web page to present to the final user 5. If it is the data in the handheld device, you can publish the results into the handheld device 6. In the new plan, we can put This calculation model is integrated into the EJB (not limited to Easerver) and is called by any JALEE client member. 7. In the new plan, we can completely integrate this computing model into the .NET environment this is the adaptation Sexual power. Applicants should care about their own business models and the law of implementation, and encapsulate into a technical model through existing object models.
