View source for FAQ How do I associate an action with a command?

Actions are associated with commands in various ways depending on how the actions are defined.  For actions contributed via the <tt>actionSets</tt> extension point, the association with a command is done directly in the action definition.  The <tt>definitionId</tt> attribute of the <tt>action</tt> element must match the ID of the command it is associated with:
<pre>
   &lt;actionSet ...&gt;
      &lt;action
         definitionId=&quot;org.eclipse.faq.sampleCommand&quot;
         ...&gt;
      &lt;/action&gt;
   &lt;/actionSet&gt;
   &lt;command
      id=&quot;org.eclipse.faq.sampleCommand&quot;
      ...&gt;
   &lt;/command&gt;
</pre>

For actions created programmatically, associating the action with a command is a two-step process.  As with declarative actions, the first step is to set the action&#146;s definition ID to match the ID of the command. The command must still be defined declaratively, using the <tt>command</tt> extension point.  The definition ID is set by calling <tt>Action.setDefinitionId</tt>. The second step is to register the action with the platform, using the  key-binding service.  This service can be accessed from the  <tt>IWorkbenchPartSite</tt>, which is accessible to both views and  editors.  Here is an example of these steps for an action in a view:
<pre>
   action.setActionDefinitionId(&quot;some.unique.id&quot;);
   view.getSite().getKeyBindingService().registerAction(action);
</pre>

== See Also: ==
*[[FAQ How do I make key bindings work in an RCP application?]]
*[[FAQ What is the difference between a command and an action?]]

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