Even though I've gotten past the prefetching problems caused by missing
reverse dbRelationships, I'm still having to disable prefetching because I
cannot figure out how to apply restrictingQualifiers to them.
For the simple non-prefetch case, GenericSelectQuery.getRoot() contains the
class of the DataObject which can be used to look up the
restrictingQualifier.
For the prefetch case, GenericSelectQuery.getRoot() returns an ObjEntity,
but I've been unable to determine how to get a list of all of the
ObjEntities in order to apply all of the appropriate restrictingQualifers.
At best, I only get one of them using anObjEntity.getClassName().
Maybe this is because there is no such list available yet?
-Mike
public GenericSelectQuery willPerformSelect(
DataContext aDataContext,
GenericSelectQuery aGenericSelectQuery)
{
if (aGenericSelectQuery instanceof SelectQuery)
{
SelectQuery aSelectQuery = (SelectQuery)aGenericSelectQuery;
Object aSelectQueryRoot = aSelectQuery.getRoot();
if (aSelectQueryRoot instanceof Class)
{
// called with no prefetching -- aSelectQueryRoot is class to restrict.
Class aClass = (Class)aSelectQueryRoot;
Expression restrictingQualifer = getRestrictingQualifier(aClass);
if (null != restrictingQualifer)
{
aSelectQuery.andQualifier(restrictingQualifer);
return aSelectQuery;
}
}
else if (aSelectQueryRoot instanceof ObjEntity)
{
// called with prefetching -- aSelectQueryRoot is ObjEntity
// anObjEntity.getClassName() is only one of the classes to restrict
ObjEntity anObjEntity = (ObjEntity)aSelectQueryRoot;
}
else // ?
}
return aGenericSelectQuery;
}
This archive was generated by hypermail 2.0.0 : Mon Oct 06 2003 - 15:47:27 EDT