| Attributes |
| Name | Required | Request-time | Type | Description |
| action | false | true | java.lang.String | Action to invoke when clicked. This must be a MethodBinding or a String representing the application action to invoke when this component is activated by the user. The MethodBinding must evaluate to a public method that takes no parameters, and returns a String (the logical outcome) which is passed to the NavigationHandler for this application. The String is directly passed to the Navigationhandler. |
| actionListener | false | true | java.lang.String | MethodBinding representing an action listener method that will be notified when this component is activated by the user. The expression must evaluate to a public method that takes an ActionEvent parameter, with a return type of void. |
| immediate | false | true | java.lang.String | Flag indicating that, if this component is activated by the user, notifications should be delivered to interested listeners and actions immediately (that is, during Apply Request Values phase) rather than waiting until Invoke Application phase. |
| onclick | false | true | java.lang.String | Script to be invoked when clicked |
| link | false | true | java.lang.String | Link to an arbitrary URL |
| transition | false | true | java.lang.String | Specify, if the command calls an JSF-Action. Useful to switch off the Double-Submit-Check and Waiting-Behavior. |
| id | false | true | java.lang.String | The component identifier for this component. This value must be unique within the closest parent component that is a naming container. |