Why you interate the results?
2010/2/21 Ftaylor <finbarrtay...@googlemail.com>
> Is this the fastest way to load all of the Elements of a given type
> from the DataStore?
>
> @SuppressWarnings("unchecked")
> public static final List<Page> loadAllPagesFromDataStore() {
> List<Page> pages = new ArrayList<Page>();
> PersistenceManager pm = PMF.get().getPersistenceManager();
> Query query = null;
> try {
> query = pm.newQuery(Page.class);
> List<Page> results = (List<Page>)query.execute();
> if(results.iterator().hasNext()) {
> Iterator<Page> it = results.iterator();
> while(it.hasNext())
> pages.add(pm.detachCopy(it.next()));
> }
> } finally {
> query.closeAll();
> pm.close();
> }
> return pages;
> }
>
> I ask because the datastore is meant to be very fast at reading huge
> amounts of data, but slow at writing huge amounts of data, yet this
> query is quite slow for only 100 elements.
>
> Thanks,
>
> Finbarr
>
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