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Content Tagged with batch + Hibernate
Batch Processing
How to handle enormous inserts and updates in Hibernate
Chapter 13. Batch processing
is would fall over with an OutOfMemoryEx
Chapter 13. Batch processing
naive approach to inserting 100 000 rows in the database using Hibernate might look like this:
Chapter 13. Batch processing
Batch-inserting records using Hibernate
Spring-Batch Hibernate writer sample context
Shows how to configure Spring-Batch to batch import Hibernate entities
Chapter 13. Batch processing
This would fall over with an OutOfMemoryException somewhere around the 50 000th row. That's because Hibernate caches all the newly inserted Customer instances in the session-level cache.
Hibernate: Tuning Lazy Fetching
While joins are probably the optimal solution for performance whenever possible, it isn't always worth the complexity that may be required; the performance impact may be minimal given the context that you are working with, so you choose lazy fetching.
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