About performance

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Consulting and Training

... Consulting Facing a migration project? Performance issues with your current persistence architecture / framework? ... in depth from the very basics up to advanced topics, performance tuning and production tools. This course does not focus on a ...

 
issue

RDBMS-ObjectDB Replication

Replication between ObjectDB and RDBMS will enable managing the same synchronized data in ObjectDB and in an external relational database, using a JPA ORM provider. This could be useful in systems that must use an RDBMS for other purposes, but need better performance for specific tasks. For systems that already use JPA - this feature might enable using ObjectDB as a performance booster, without writing new code.... that must use an RDBMS for other purposes, but need better performance for specific tasks. For systems that already use JPA - this feature might enable using ObjectDB as a performance booster, with almost no need to write new code. ...

 
api-jpa

javax.persistence.criteria.Join

A join to an entity, embeddable, or basic type.(Interface of JPA)

 
api-jpa

javax.persistence.criteria.Path

Represents a simple or compound attribute path from a bound type or collection, and is a "primitive" expression.(Interface of JPA)

 
api-jpa

lock(entity, lockMode)

Lock an entity instance that is contained in the persistence context with the specified lock mode type.(Method of javax.persistence.EntityManager)

 
api-jpa

javax.persistence.criteria.Subquery

The Subquery interface defines functionality that is specific to subqueries.(Interface of JPA)

 
api-jpa

javax.persistence.criteria.PluralJoin

The PluralJoin interface defines functionality that is common to joins to all collection types.(Interface of JPA)

 
api-jpa

javax.persistence.criteria.CriteriaBuilder.In

Interface used to build in predicates.(Interface of JPA)

 
api-jpa

javax.persistence.criteria.ParameterExpression

Type of criteria query parameter expressions.(Interface of JPA)

 
api-jpa

javax.persistence.criteria.CriteriaBuilder.SimpleCase

Interface used to build simple case expressions.(Interface of JPA)