Jimmer ORM: An Alternative to JPA
summary
A comparison of Jimmer ORM against Hibernate and JPA focusing on common pain points: overfetching, nested projections, the Criteria API, nullability handling, and L2 cache invalidation. The talk explains how Jimmer addresses each of these issues and demonstrates how it makes typical data-access tasks simpler.
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chapters (19)
- 0:00Introduction
- 1:10Why JPA alternative
- 2:56Jimmer ORM overview
- 4:00Speed and performance
- 6:54Java and Kotlin support
- 8:43Common tasks and productivity
- 14:25Reading object graph
- 17:20Modifying object graph
- 19:54Handling relationships
- 23:05Data access approach
- 24:52DTO projections in Jimmer
- 27:40Data creation and updates
- 30:31Specifications and filtering
- 31:57Jimmer query language
- 36:12Computed fields
- 40:28Caching in Jimmer
- 42:14JPA and Hibernate comparison
- 44:23Usage experience and migration
- 45:29Resources and closing
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