As Needed Not Working. Getting all rows on page open.

Question

Using JDev 9.0.3.1 I have a simple viewObject that is flagged for retrieve data "As Needed" along with a Fetch size of 100 and Maximum Fetch = -1
I have a .uix page with selectable search parameters on top of the page and the VO on the second half of the page.
The problem: All data is retrieved and displayed when the page is openned. I tried all different settings for the VO but it still does this. I don't want any rows retrieved until the "Search" button is selected.
Any Idea? Is this a bug? Let me know.
Thanks for your time.

Answer 1

You can make use of an event named null to init you viewobject.In the event,
1.get the viewobject;
2.set the viewobject whereclause
In UIX:
<event name="null">
<bc4j:findRootAppModule name="VTbReceiveListView1AppModule">
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="VTbReceiveListView1">
<method class="propackage.ReceiveListAffirm" method="initReceiveList"/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
In Java code:
public static EventResult initReceiveList(
BajaContext context,
Page page,
PageEvent event) throws Throwable
String sWhere="";
ViewObject voThis = ServletBindingUtils.getViewObject(context);
if (voThis == null)
return null;
sWhere = ...;
voThis.setWhereClause(sWhere);
voThis.executeQuery();
EventResult result = new EventResult(page);
return result;