Model-View-Controller, or MVC for short, is a common pattern in Web frameworks where it is used predominantly to build HTML applications. The model refers to the application’s data, the view to the application’s data presentation and the controller to the part of the system responsible for managing input, updating models and producing output.
The Jakarta Server Faces project provides the specification document for the Jakarta Server Faces specification.
Jakarta Contexts and Dependency Injection defines a powerful set of complementary services that help to improve the structure of application code.
A well-defined lifecycle for stateful objects bound to lifecycle contexts, where the set of contexts is extensible
A sophisticated, typesafe dependency injection mechanism, including the ability to select dependencies at either development or deployment time, without verbose configuration
The Jakarta Batch project describes the XML-based job specification language (JSL), Java programming model, and runtime environment for batch applications for the Java platform.
The specification ties together the Java API and the JSL (XML) allowing a job designer to compose a job in XML from Java application artifacts and conveniently parameterize them with values for an individual job. This structure promotes application reuse of artifacts across different jobs.
Some key features: