LL API uses LazyList, so PreparedQuery#asList is very fast.
I modified the test code as follows:
DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
Query q = new Query("Bar");
PreparedQuery pq = ds.prepare(q);
List<Entity> list =
pq.asList(FetchOptions.Builder.withOffset(0).limit(
Integer.MAX_VALUE));
list.size();
return list;
The result:
The number of entities: 10000
low-level API:get: 1199 millis
Slim3: 1238 millis
JDO: 3298 millis
Slim3 does not need runtime reflection for mapping between a entity and a model.
The mapping logic is automatically created as the source code when compiling.
so the speed of Slim3 is almost equal to LL API.
Yasuo Higa
On Tue, Jun 7, 2011 at 8:27 PM, Anders <blabl...@gmail.com> wrote:
> I started by looking at JDO but after finding some info about potential
> performance loss I wrote a simple wrapper abstract base class around a
> low-level Entity object and then extended the base class into the data
> classes I needed. Super light weight. :-)
>
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