JPA 2.0 Features II (Java EE 6)

Topics

Criteria API
- Criteria API with single entity
- Criteria API with relationship
- Criteria API with meta-model
Locking
- Optimistic locking
- Pessimistic locking

Criteria API with Single Entity

JPA 2.0: Criteria API

Strongly typed criteria API
- Compile time type-checking possible
- Similar to Hibernate Criteria API
Object-based query definition objects
- Rather than string-based JPQL
You could use a metamodel – compile time type checking using Generics
- Each entity X has a metamodel class X_
- Criteria API operates on the metamodel

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JPA 2.0 Features II (Java EE 6)

Topics

Criteria API with Single Entity

JPA 2.0: Criteria API

Jpassion Courses