If you configure your portlet-instance.xml like this:
<?xml version="1.0" standalone="yes"?>
| <deployments>
| <deployment>
| <instance>
| <instance-id>XPortletInstance</instance-id>
| <portlet-ref>XPortlet</portlet-ref>
| <preferences>
| <preference>
| <name>name</name>
| <value>X-Portlet</value>
| </preference>
| </preferences>
| <security-constraint>
| <policy-permission>
| <action-name>admin</action-name>
| <role-name>role1</role-name>
| </policy-permission>
| </security-constraint>
| </instance>
| </deployment>
| <deployment>
| <instance>
| <instance-id>YPortletInstance</instance-id>
| <portlet-ref>YPortlet</portlet-ref>
| <preferences>
| <preference>
| <name>name</name>
| <value>Y-Portlet</value>
| </preference>
| </preferences>
| <security-constraint>
| <policy-permission>
| <action-name>admin</action-name>
| <role-name>role1</role-name>
| </policy-permission>
| </security-constraint>
| </instance>
| </deployment>
| </deployments>
then you can retrieve the values within your portlet with this code:
renderRequest.getPreferences().getValue("name", "default_name");
and thus, make your X portlet act differentlyto your Y portlet instance
accordingly
Hope this helps,
Mat
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