I was just trying learn sortHeader Component. But got a doubt about its
flow. Below is code for ready reference...
use in JSP:
------------
<x:dataTable
var="car"
value="#{list.cars}"
sortColumn="#{list.sort}"
sortAscending="#{list.ascending}"
preserveDataModel="true"
preserveSort="true">
<f:facet name="header">
<h:outputText value="(header table)" />
</f:facet>
<f:facet name="footer">
<h:outputText value="(footer table)" />
</f:facet>
<h:column>
<f:facet name="header">
<x:commandSortHeader columnName="type" arrow="true">
<h:outputText value="#{example_messages['sort_cartype']}" />
</x:commandSortHeader>
</f:facet>
.........
in managed bean list(SortableList):
getter/setter are there for sort and ascending atrribute
And sort() method which uses these attributes to sort the list.
in HtmlCommandSortHeader component class there is :
public void broadcast(FacesEvent event) throws
AbortProcessingException
{
..................
dataTable.setSortColumn(getColumnName());
dataTable.setSortAscending(true);
}
Now question is:
In broadcast method, dataTable attribute are set based on the header
clicked.And we are
sorting based on "list" bean's sort/ascending attribute.
How "list" bean properties are updated? Or say how datatable attribute
update will result in
updation of bean property?
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