Yes. I have just checked and found ERXFetchSpecificationBatchIterator in er.extensions.
Mark > On 10 Mar 2016, at 10:51, Daniele Corti <[email protected]> wrote: > > Hi, > I have a question, about performance while working with LongRequest and many > EO. > > Here's the situation: I've prepared a class that extends > ERXLongResponseTask.DefaultImplementation. > In this class, I operate a database migration, over 10000 record. > Each of them has, at least, 50/60 objects releated. From them, I create > others objects, for a total of 60 new objects for each of the starting 10000 > rows. > > The procedure works fine, but, I experience a difference in speed during the > procedure. At first, 300-400 objects are processed in few seconds, then the > procedure slow down until, from 5000, it processes about 7/8 objects in 5 > seconds. > > The procedure is very simple: > 1. Fetch all objects in a NSArray > 2. Manipulate each object in a for loop, fetching related objects and > creating other objects in every iteration. > > I use just one EOEditingContext, so, I think the slowness begin when it > became really full of elements. > > I would like to know, if there is a way to "clean up" the manipulated objects > from the EC, or if a different approach is preferred. > > One last thing: it is good to use a NSArray of 1000 object in the for loop to > do this? I ask this because, I fetch all the objects and save them in memory > using EOObject.fetchAllObjects(EC) method from the class. > > Thanks in advance! > Daniele C. > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/webobjects-dev/mark%40wardle.org > > This email sent to [email protected]
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