On 13 September 2012 17:24, Ales Justin <[email protected]> wrote:
> While thinking about EntityLoader as interface (imo, it should be an
> interface ...),
+1, feel free to patch it, but before jumping on it make sure you need
to replace it; I'm not sure of that.
> just stumbled upon this:
>
> public List<Object> load(EntityInfo... entityInfos) {
> int size = entityInfos.length;
> ArrayList<Object> list = new ArrayList<Object>(size);
> for (EntityInfo e : entityInfos) {
> Object entity = load(e);
> if (entity != null) {
> list.add(entity);
> }
> }
> return list;
> }
>
>
> We pass "size" into ArrayList.
> What if some "entity" is the null, hence not added, will the "list" size
> still be ok?
> I would say you need to call "trimToSize"?
No that's not needed.
>
> @Sanne: how would we get just key to be used / loaded, not full entity;
> e.g GAE has Query::setKeysOnly
> ... you mentioned some projections
I was referring to the following Hibernate Search capability:
http://docs.jboss.org/hibernate/search/4.2/reference/en-US/html_single/#projections
In short:
org.hibernate.search.FullTextQuery query =
s.createFullTextQuery( luceneQuery, Book.class );
query.setProjection( "id" );
List results = query.list();
But I just realized Infinispan Query doesn't implement _setProjection_ :-(
Open a feature request?
I'd prefer we implement projections over converting the EntityLoader
to an interface.
Sanne
>
> -Ales
>
>
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