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I need to insert many entities into the database via Hibernate. So, I want to find the most effective algorithm for Id generation.
Accordingly Hibernate Documentation exists four widely used generation strategies:
I should use MySQL database, so I cannot apply SEQUENCE generation strategy. What about other strategies? What is the most efficient from performance point of view?
The best id generators in Hibernate are enhanced-table and enhanced-sequence, coupled with an appropriate optimizer, such as hilo. I have experience with enhanced-table + hilo, inserting over 10,000 records per second.
BTW the statement that “hilo needs an additional query per generated entity” is patently false: the whole point of the optimizer is to prevent this.