I'm currently writing a method which, in order to reduce transaction costs, inserts entities into Azure Table Services in batches of 100. The entities inserted are immutable. I.e. if the PartitionKey and the RowKey are identical between two entitiy-object it means that all other properties are identical as well. Therefore I will never n...
Hi, I am trying to wrap my head around Entity Groups in Google AppEngine. I understand them in general, but since it sounds like you can not change the relationships once the object is created AND I have a big data migration to do, I want to try to get it right the first time. I am making an Art site where members can sign up as regul...
I am building an app based on google app engine (Java) using JDO for persistence. Can someone give me an example or a point me to some code which shows persisting of multiple entities (of same type) using javax.jdo.PersistenceManager.makePersistentAll() within a transaction. Basically I need to understand how to put multiple entites i...