netbeans.apache.org/src/content/wiki/DevFaqModulesStartupActions.asciidoc

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= DevFaqModulesStartupActions
:jbake-type: wiki
:jbake-tags: wiki, devfaq, needsreview
:jbake-status: published
:keywords: Apache NetBeans wiki DevFaqModulesStartupActions
:description: Apache NetBeans wiki DevFaqModulesStartupActions
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:toc-title:
:syntax: true

=== How do I run some code when my module starts/loads/unloads?

To run some code when your module is loaded, and basically every time the IDE starts and your module is enabled, simply create a subclass of `org.openide.modules.ModuleInstall` and override the `restored()` method. Bear in mind that this is being executing during the time the IDE/platform is starting up. You should limit the work you do here to that which is absolutely necessary.

Once the class is created, you must declare it in your module's `manifest.mf` file, like so:

[source,java]
----

OpenIDE-Module-Install: org/netbeans/modules/editor/EditorModule.class
----

Likewise, to execute code when the IDE is shutting down, you can override the `close()` method. This method of `ModuleInstall` is called when the IDE is shutting down, contrary to the `closing()` method, which is called to alert the module that the IDE is about to shut down. However, another module may veto the shutdown by returning `false` from the `closing()` method, so the `close()` method is best for performing any cleanup work for your module.

You can simply use *File > New File > Module Development | Module Installer* to create the `ModuleInstall` class and its registration in the manifest.

<hr/>
Applies to: NetBeans 6.5 and later

=== Apache Migration Information

The content in this page was kindly donated by Oracle Corp. to the
Apache Software Foundation.

This page was exported from link:http://wiki.netbeans.org/DevFaqModulesStartupActions[http://wiki.netbeans.org/DevFaqModulesStartupActions] , 
that was last modified by NetBeans user Jglick 
on 2009-12-03T13:43:29Z.


*NOTE:* This document was automatically converted to the AsciiDoc format on 2018-02-07, and needs to be reviewed.