Thứ Tư, 13 tháng 3, 2013

Presentation Layer - Business Layer - Data Access Layer

Presentation Layer

JSF is used to build the presentation layer of the application. JFS allows us to create rich GUI for web application. It resolves the technical challenges of creating rich GUI web application. In this layer we have JSP pages
consists of JSF components. All the requests to the web server pass through FacesServlet.

Business Layer

The POJO classes and classes to process the business logic are used to create the Business Layer. The POJO classes, with the help of spring framework, create an ideal solution to implement the Business Layer.

Data Access Layer

The data access layer handles all the logic to save and retrieve the data from database. Hibernate O/R mapping tools is an ideal solution for enterprise application of any size. Hibernate handles all the logic to store and retrieve POJO objects. It also handles resource management and transaction management activities.

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