public interface MVCActionCommand extends MVCCommand
The action command to be invoked is determined by two factors:
ActionRequest.ACTION_NAMEof the action URL.
Implementations of this interface must be OSGi components that are registered in the OSGi Registry with the following properties:
javax.portlet.name: The portlet name associated to this action command.
mvc.command.name: the command name to match with the parameter value
ActionRequest.ACTION_NAME. This name cannot contain any comma (
searches the OSGi Registry for the action command that matches both the
portlet name with the property
javax.portlet.name and the
ActionRequest.ACTION_NAME with the property
In general, only one action command is executed per portlet action URL. If
the parameter value
ActionRequest.ACTION_NAME is, however, a
comma separated list of names,
MVCPortlet finds the matching action
commands and invokes them sequentially in the order they're specified in the
When there are multiple action commands registered for the same portlet name and with the same command name, only the action command with the highest service ranking is invoked.
BaseMVCActionCommand is an abstract class that implements this
interface and can be extended to simplify using action commands.
static final MVCActionCommand EMPTY
boolean processAction(ActionRequest actionRequest, ActionResponse actionResponse) throws PortletException
MVCPortletto allow the portlet to process an action request.
actionRequest- the action request
actionResponse- the action response
trueif an error occurs in processing the action request;