JPA - Database Synchronization

Card Puncher Data Processing


The Database synchronization involves writing to the database any updates to persistent entities and their relationships.

The state of persistent entities is (synchronized to|entered into) the database:

The persistence provider runtime is permitted to perform synchronization to the database when a transaction is active.

The EntityManager and Query setFlushMode methods can be used to control synchronization semantics.

Discover More
Card Puncher Data Processing
JPA - Cascade Type

The cascade parameter on a relationship defines the entity operation that must be cascaded to the target of the association. See javax/persistence/CascadeTypecascadeType For all entities Y referenced...
Card Puncher Data Processing
JPA - Detached Entity

A detached entity results from: transaction commit if a transaction-scoped container-managed entity manager is used from transaction rollback from detaching the entity from the persistence context;...
Card Puncher Data Processing
JPA - Entity (Operations|Lifecycle)

All entity operations are described in the chapter 3: Entity Operations of the specification The following operations are possible: PERSIST, MERGE, REMOVE, REFRESH, DETACH FLUSH This...
Card Puncher Data Processing
JPA - Removed Instance

A managed entity instance becomes removed by: invoking the remove method on it or by cascading the remove operation. If X is a: new entity, it is ignored by the remove operation. However, the...

Share this page:
Follow us:
Task Runner