[Already posted to hibernate-users, but no responses.]
Hi,
I have pagination working, but am doing so with two queries; one to get the
results page and a second one to get the total count.
I'd like to do this in a single query: Is it possible to build a criteria,
so my results set includes columns for each of the properties on my bean,
plus an additional column which has the row count (downside: this is
duplicated for each row in the page).
I figured I could build a projection like this to return all the beans
properties plus the row count.
private Projection getProjectionsForBeanAndRowCount() {
ClassMetadata classMetadata =
session().getSessionFactory().getClassMetadata(modelClass);
ProjectionList projectionList = Projections.projectionList();
projectionList.add(Projections.rowCount());
String[] propertyNames = classMetadata.getPropertyNames();
for (String propertyName : propertyNames) {
projectionList.add(Projections.property(propertyName));
}
return projectionList;
}
..and then write a ResultsTransformer to process these results,
instantiating a class like:-
public class PageResult {
Object bean;
int rowCount;
}
..but it seems that by the time ResultsTransformer is called, you already
have the bean instantiated.
Is there a way I can jump in at a slightly lower level, like at a single row
of the result set, the level where the results bean's are built?
Any info much appreciated.
All the best, Jon
_______________________________________________
hibernate-dev mailing list
hibernate-dev@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/hibernate-dev
