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Callback methods are user defined methods that are attached to entity lifecycle events and are invoked automatically by JPA when these events occur. Internal Callback Methods Internal callback methods are methods that are defined

is bundled in a product that uses only signed enhanced persistable classes - activation by end users is unnecessary.

Fields of persistable user defined classes (entity classes, embeddable classes and mapped superclasses) can be classified into the following five groups: Transient fields Persistent fields Inverse (Mapped By) fields Primary

> The Product shall only be distributed with a license agreement that guarantees that any user

with a structure that is known only at runtime (e.g. depending on which fields are filled by a user

bundled in a product to an unlimited number of end users. For a quote please contact

and the changes are visible to other users (who use other EntityManager instances

="$objectdb/db/guests.odb"/> <property name="javax.persistence.jdbc.user" value="admin"/>

://localhost/points.odb;user=admin;password=admin).

.persistence.jdbc.user" value="admin"/> <property name="javax.persistence.jdbc.password