Hi Pavel, I was going through all methods and trying to implement cache using ado.net while doing that i came across some scenario which are as follows,
1.Data is added to cache and when trying to retrieve it using key first it checks if it is present in cache then gets it from cache if not then there will be a db call and fetches the data from DB and stores it in cache which again follows for the next time as well. 2. The second scenario is i have loaded cache with two values from DB taking your cars table as example.Once i have loaded cache then i went ahead and deleted a record from DB. so when i use a get() method by passing the key which i deleted in DB it actually shows me the value which because it is present in cache. so my question is when there is a record deleted in DB it should be deleted in cache. when user tries to retrieve any information which is not there in DB it should not be displayed from cache as well. Can you please guide me how to handle this. Regards Chetan D On Tue, May 30, 2017 at 5:36 PM, Pavel Tupitsyn <ptupit...@apache.org> wrote: > Basically, data streamer does the same thing as cache.Put() in a loop. > Data streamer is more efficient on large amounts of keys. > > 1) Yes, I guess there is no different than using tables > 2) Data streamer performs batched updates. IDataStreamer.PerNodeBufferSize > controls how many entries are batched before being sent to remote nodes. > 3) Once the streaming is complete (IDataStreamer.Flush() or > IDataStreamer.Close(false)), all data is guaranteed to be in the cache. So > you can do cache.Get. > > On Tue, May 30, 2017 at 2:49 PM, Chetan D <ccheta...@gmail.com> wrote: > >> Hi Pavel, >> >> Thank you for the quick response. >> I tried using data streamer to get all the values in a table and store it >> in cache. while i was doing that i came across a situation where in i need >> to store data to cache from SQL VIEWS. >> >> 1.Is it possible to load cache from sql views? >> 2.with respect to data streamer, when i use AddData() method will it add >> data to cache which i specified while creating data streamer or the data >> will be stored in data streamer itself? >> 3. when i use data streamer can i use the same way such as cache.get() >> method or by using a foreach loop to get cache or is it different with >> respect to datastreamer? >> >> >> Regards >> Chetan D >> >> >> >> >> On Mon, May 29, 2017 at 6:45 PM, Pavel Tupitsyn <ptupit...@apache.org> >> wrote: >> >>> 1) ICache implements IEnumerable, so you can do `foreach (var entry in >>> cache)` or `cache.ToList()`. >>> 2) To bulk load the data into cache you can either use IDataStreamer [1] >>> or, in case with cache store, ICacheStore.LoadCache method. >>> 3) No, you have to handle this manually. >>> 4) GetAll returns multiple cache entries by a set of known keys. >>> >>> [1] https://apacheignite-net.readme.io/docs/data-streamers >>> >>> On Mon, May 29, 2017 at 3:28 PM, Chetan D <ccheta...@gmail.com> wrote: >>> >>>> Hi Pavel, >>>> >>>> Thanks for the quick response. code helped me a lot. >>>> I have some general questions, >>>> >>>> 1.is it possible to get all data stored in cache without calling >>>> explicit get method if so how? >>>> 2.can i fetch all data from sql table and store it in cache without >>>> using any of the loops such as for each. >>>> 3.if i add any data in table will my cache gets updated automatically? >>>> 4.how can i make use of GetAll() method? will this fetch all cache data? >>>> >>>> Regards >>>> Chetan D >>>> >>>> On Fri, May 26, 2017 at 10:36 PM, Pavel Tupitsyn <ptupit...@apache.org> >>>> wrote: >>>> >>>>> Short writeup with example code, inspired by user questions: >>>>> >>>>> ADO.NET + Binary Mode Cache Store >>>>> https://ptupitsyn.github.io/Ado-Net-Cache-Store/ >>>>> >>>>> >>>> >>> >> >
