Hi, How many notifications do you want to get? If it's just a several notifications, then you can even register separate CQ for each of the entry with its own remote filters. At the same time, if you have a requirement to send these notifications for a lot of entries, then this approach will create a big overhead.
Its possible to unregister a CQ after you get first notification - you just need to return FALSE from a remote filter. Also, you can send not exact entry, but only some fields using Transformer: https://www.gridgain.com/docs/latest/developers-guide/key-value-api/continuous-queries#remote-transformer. You can create some another object, which will contain only part of the fields. Best Regards, Evgeni пн, 17 февр. 2020 г. в 03:58, narges saleh <snarges...@gmail.com>: > Hi All, > I am getting the following streams of the following records: > name, org, year, month, day > 1- john, acc, 2004, 2, 1 > 2- pete, rd, 2004, 3,1 > 3- jim,hr,2004, 5,2 > 4- jerry,math,2005,2,1 > 5- betty,park,2005,3,2 > 6- carry,acc,2006,1,1 > > I want to get notification for the first occurrence of a particular value. > So, I want to get notifications when I get records 1, 4 and 6, and in this > case, I want to get the fields, org, and year back only. > > Questions: > 1) Is CQ overkill in this case? If yes, what's a better alternative? > 2) If not, how can I set up CQ to get only one record per occurrence? > 3) How would I return only org and year back with the CQ transformer, > considering that I am working with a flat object? Note that in reality this > record has 25-30 fields (I am showing only 5 of them). > > thanks. >
