How do I set the CoreTable sort column in the managed bean?

Question

I have a CoreTable with two columns, first name and company, from the managed bean in a session scope, how do I set the company column to be the default/selected sort order?
Or is that done by binding the af:column to a CoreColumn object in the managed bean, which method would I use?
<af:column sortProperty="company" sortable="true">
<f:facet name="header">
<af:outputText value="#{common.labelCompany}"/>
</f:facet>
<af:outputText value="#{row.company}"/>
</af:column>
Thanks,
--Todd                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Answer 1

Yes, I know, "sortable", see, I even used it in my example. I don't want to disable default sorting.
What I'm asking is how to have more than one sortProperty. When the user clicks the column heading, I want to sort by "myFirstProperty" AND "mySecondProperty". The sortProperty only seems to allow one sort property.
One possibility seems to be to programatically add items to the List of SortCriterion objects as in your example, but where would I put this code so that it is executed when the user clicks the column heading, but before the table is sorted.