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This document is a work in progress.

Configuring Extensions to the IntelliJ IDEA Core

This topic explains how you can create a plugin that contributes to extension points declared in the IntelliJ IDEA core.
From this page, you can also download a sample plugin illustrating how to contribute to the applicationConfigurable extenstion point.

How to Get the Extension Points List?

To get a list of extension points available in the IntelliJ IDEA core, consult the <extensionPoints> section of the following XML configuration files:

How to Create an Extension in Your Plugin?

To create an extension that contributes to the specified extension point, perform the following steps:

  1. In your plugin project, create a Java class that implements a bean class or an interface that is allowed to access the extension point to which you want to contribute.
  2. In the plugin configuration file plugin.xml, create the <extensions defaultExtensionNs="com.intellij"> </extensions> section.
  3. To this section, add the child element similar to the following syntax: <extensionPointName implementation=implementation class name></extensionPointName>.
    Where the extensionPointName refers to the extension point name to access, and the implementation class name refers to the newly created Java class.
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