portlet window preferences and transactions

[erezharari]

is it so that in order to read/write portlet window properties from within the portlet i must declare the portlet as requires a transaction?
is there a way to access properties (portlet window / page / portal) without transactions?

[peterj]

You do not need to worry about transactions when accessing portlet preferences. But if you update the preferences in processAction() method, make sure your call PortletPreferences.sator().

[erezharari]

well, i'm using JSF portlets with the portlet bridge. i don't cnage the properties from the default jsr 168 methods. does that make any change?

so there is no requirement to configure in jboss-portlet.xml:

<transaction>
<trans-attribute>Required</trans-attribute>
</transaction>

?

[peterj]

The preferences are handled entirely by the portlet container - it handles any required transactions to save updated property values.

You need the trans-attribute only if your portlet does its own database work.

(also, earlier I meant PortletPreferences.store(), one of these days I will either learn how to type or how to spell...)

[erezharari]

OK, so freferences is clear.
what about window properties?
do i need a transaction to read/write portlet window properties?