The mission of the e4 project is to build a next-generation platform for pervasive, component-based applications, and tools.įreeware programs can be downloaded used free of charge and without any time limitations. The e4 project is an incubator for developing the next generation of the platform.

The PDE makes integrating plug-ins easy and fun. Using the PDE, you can create your plug-in manifest file (plugin.xml), specify your plug-in runtime and other required plug-ins, define extension points, including their specific markup, associate XML Schema files with the extension point markup so extensions can be validated, create extensions on other plug-in extension points, etc. The PDE project provides a number of views and editors that make it easier to build plug-ins for Eclipse SDK. The JDT plug-ins themselves can also be further extended by other tool builders. The JDT allows Eclipse to be a development environment for itself. The JDT adds the notion of Java projects and a Java perspective to the platform, as well as a number of views, editors, wizards, builders, and code merging and refactoring tools.

The JDT provides the tool plug-ins for the platform that implement a Java IDE for power-users, that supports the development of any Java application, including plug-ins. These services and frameworks include a standard workbench user interface model and portable native widget toolkit, a project model for managing resources, automatic resource delta management for incremental compilers and builders, language-independent debug infrastructure, and infrastructure for distributed multi-user versioned resource management. The Platform defines the set of frameworks and common services that collectively make up 'integration-ware' required to support the use of Eclipse as a component model, as a rich client platform (RCP) and as a comprehensive tool integration platform. These projects can be conceptually organized into seven different 'pillars' or categories:

The Eclipse Platform is written in the Java language and comes with extensive plug-in construction toolkits and examples. By collaborating and exploiting core integration technology, tool producers can leverage platform reuse and concentrate on core competencies to create new development technology. Eclipse SDK provides a plug-in based framework that makes it easier to create, integrate, and utilize software tools, saving time and money. Eclipse SDK includes tools made to give developers the freedom of choice in a multi-language, multi-platform, and multi-vendor environment.

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