Re: AR: Saving parent but not all children

I forgot tx.Commit(); at the end. 2009/5/14 Flominator flomina...@gmx.net: Thanks for your support. Tried to evict the Measurand within the transaction = exception on disposal The other solution would compile, since it didn't recognize typeof (ActiveRecord). I then tried it with

Re: AR: Saving parent but not all children

All entities that NH persists, are put into this cache. Does that mean that NH caches all my 18 million objects after they were created and saved via ARMediator? Is there a way to remove objects from the cache after they were created and saved? Could I make created and saved objects in a

Re: AR: Saving parent but not all children

About 1st-level-cache: Each session has one (except for stateless sessions that don't exist currently in AR). When code executes using the same session scope, it shares one session and therefore one 1st-level-cache. All entities that NH persists, are put into this cache. Now, if you load an

Re: AR: Saving parent but not all children

Hi Markus, sorry for writing such a crap last time: I'm currently only reading data from some file and write it into the database. So I meant, that I'm currently not reading data from the db. 1. Is there any way to stop NHibernate from opening too many sessions? 2. What about batching more

Re: AR: Saving parent but not all children

Hi Flo answers inline 2009/5/6 Flominator flomina...@gmx.net: 1. Is there any way to stop NHibernate from opening too many sessions? AR by default opens a NH session per operation. NH opens a db connection per session, but disconnects and reconnects it per operation. If you use a

Re: AR: Saving parent but not all children

Hi Markus, I'm currently only reading data. 1. I have one TransactionScope for every row of data, which means 30 measurands (one for each channel). The method that opens and disposes the TransactionScope gets the measurands and an enumerator containing my channels. It iterates over the channels

Re: AR: Saving parent but not all children

Hi Flo 2009/5/4 Flominator flomina...@gmx.net 1. I have one TransactionScope for every row of data, which means 30 measurands (one for each channel). The method that opens and disposes the TransactionScope gets the measurands and an enumerator containing my channels. It iterates over the

Re: AR: Saving parent but not all children

Hi Flo 1. Do you have a single session scope spanning the read and save operations? If there is no shared 1st level cache, NH assumes it has to update the entity. 2. Are you using IDENTITY fields? -Markus 2009/4/29 Flominator flomina...@gmx.net Hi Markus, thanks for your reply. I will try

AR: Saving parent but not all children

Hi there, I use AR to store measurands which are in channels which are in a measurement: Part of Measurement.cs: [HasMany(typeof(Channel), Table = Channels, ColumnKey = measurementid, Lazy=true, Cascade = ManyRelationCascadeEnum.AllDeleteOrphan)] private IListChannel Channels Part of

Re: AR: Saving parent but not all children

Flominator,A collection that large shouldn't be a collection On Tue, Apr 21, 2009 at 10:42 AM, Flominator flomina...@gmx.net wrote: Hi there, I use AR to store measurands which are in channels which are in a measurement: Part of Measurement.cs: [HasMany(typeof(Channel), Table =

Re: AR: Saving parent but not all children

What should it be then? On Apr 21, 9:47 am, Ayende Rahien aye...@ayende.com wrote: Flominator,A collection that large shouldn't be a collection On Tue, Apr 21, 2009 at 10:42 AM, Flominator flomina.@gmx.net wrote: --~--~-~--~~~---~--~~ You received this

Re: AR: Saving parent but not all children

Remove the collection, make the association one directional On Tue, Apr 21, 2009 at 11:05 AM, Flominator flomina...@gmx.net wrote: What should it be then? On Apr 21, 9:47 am, Ayende Rahien aye...@ayende.com wrote: Flominator,A collection that large shouldn't be a collection On Tue, Apr

Re: AR: Saving parent but not all children

Isn't this solution one directional? On Apr 21, 10:10 am, Ayende Rahien aye...@ayende.com wrote: Remove the collection, make the association one directional On Tue, Apr 21, 2009 at 11:05 AM, Flominator flomina..@gmx.net wrote: What should it be then? On Apr 21, 9:47 am, Ayende

Re: AR: Saving parent but not all children

Not if you have a collection of them.Remove the HasMany, basically On Tue, Apr 21, 2009 at 11:13 AM, Flominator flomina...@gmx.net wrote: Isn't this solution one directional? On Apr 21, 10:10 am, Ayende Rahien aye...@ayende.com wrote: Remove the collection, make the association one

Re: AR: Saving parent but not all children

What do I have left after removing HasMany? Is there any documentation on this? On Apr 21, 10:18 am, Ayende Rahien aye...@ayende.com wrote: Not if you have a collection of them.Remove the HasMany, basically On Tue, Apr 21, 2009 at 11:13 AM, Flominator flomina..@gmx.net wrote: Isn't

Re: AR: Saving parent but not all children

Hi Flo, if I understood the problem correctly, Measurand is a value type without a reference to the Channel entity it belongs to. I set value type into quotes because I don't believe that they qualify for a value type. I rather think it should be an entity in the channel aggregate. Anyway,