portlet-instances.xml file have to be packaged with a war file because they
require the portlet to be present and the only way to achieve that is by doing
such a deployment.
otherwise the -instances.xml file could be created before the war file
containing the portlet is deployed.
you still have the option of using programmatic code that will use directly the
InstanceContainer interface to create portlet instances programmatically :
public interface InstanceContainer
| {
|
| ...
|
| /**
| * Return the underlying portlet invoker for the instance container.
| *
| * @return the portlet invoker
| */
| PortletInvoker getPortletInvoker();
|
| /**
| * Create a new instance of the specified portlet.
| *
| * @param id
| * @param portletId the portlet id
| * @return the newly created instance
| * @throws DuplicateInstanceException if the instance already exist
| * @throws IllegalArgumentException if the instance id is null
| */
| InstanceDefinition createDefinition(String id, String portletId) throws
DuplicateInstanceException, IllegalArgumentException, PortletInvokerException;
|
| ...
|
| }
In order to find out the right portlet id to use, you should use the
getPortletInvoker() method to retrieve the portlet invoker behind the instance
container and on the portlet invoker you have a getPortlets() method which
returns all the portlets known by the portlet invoker. It is a set of
PortletInfo interface which will give you the portlet name as well as all the
metadata provided by the portlet (from portlet.xml and jboss-portlet.xlm for
example).
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