Hello,
deleting 500 should not take a lot of time. Did you try the
deletePersistentAll method?
Query q = pm.newQuery(persistentClass);
q.deletePersistentAll();
otherwise what I do is using the task queue. I delete 1000 entities
and then put a task in the queue to delete another 1000. In that case
you can not use the deletePersistentAll. You need to query by object
type and limit:
Query q = pm.newQuery(query);
q.setRange(0, size);
try {
resultList = (List<T>) q.execute();
resultSize = resultList.size();
for (T t : resultList) {
pm.deletePersistent(t);
}
return resultSize;
} finally {
q.closeAll();
}
since I return the size I see how much records where affected. If it
is less than 1000 I know that I can stop doing the queuing.
This is a bit difficult to set up but works fine. I believe there is
not better way to do that but I am happy about any other suggestions.
Cheers,
Toby
On Mar 12, 7:08 am, 杨浩 <[email protected]> wrote:
> in the admin console:clike the next 20 entity,then change the brower's
> location.href set *size=200* and *offset=0*, enter^ ^
> The offset's max is *1000*
> Good luck！
>
> 2010/3/12 Spines <[email protected]>
>
>
>
> > I'm only able to delete 20 entities at a time, I have over 500
> > entities of a certain kind. Is there a way I can delete them all from
> > the admin console?
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