section of the plugin.xml file.
==== Wizard Creation ====
In your project:
* open the context menu of the destination package and click New (or press Alt+Insert).
* In the New menu, click Project Component.
* In the New Project Component dialog box that opens, enter the project component name, and then click OK.
The IntelliJ Platform will:
* generate a new Java class that implements the ProjectComponent interface;
* register the newly created component
* add a node to the module tree view;
* and open the created application component class file in the editor.
==== State Persistence ====
When implemeting JDOMExternalizable (deprecated) interface, the project component save their state to the project (.ipr) file. However, if the workspace option in the plugin.xml file is set to true, the component saves its configuration to the workspace (.iws) file instead.
See Idea Plugin Dev - Component
IDEA Plugin Dev - Project level components
