Hi, I am keeping a table mapping from Long to a persistent object.
However, I would like to add the persistent object iff this object has not been already added to the table. I thought about a solution: -Keeping a second table with Key == my object unique id. -Before adding the object to my primary table, I check that this unique Id is not in the secondary table. However, this solution is very time consuming : it decreases the time whole writing operation by 30% What is, please, the right solution for that ? Best regards Benjamin
