JPA Interface

PersistenceProvider

Interface implemented by the persistence provider.

It is invoked by the container in Jakarta EE environments and by the Persistence class in Java SE environments to create an EntityManagerFactory and/or to cause schema generation to occur.

Since:
JPA 1.0

Public Methods

EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info, Map<?,?> map)
Called by the container when an EntityManagerFactory is to be created.
Parameters:
info - metadata for use by the persistence provider
map - a Map of integration-level properties for use by the persistence provider (may be null if no properties are specified). These properties may include properties to control schema generation. If a Bean Validation provider is present in the classpath, the container must pass the {@code ValidatorFactory} instance in the map with the key {@code "jakarta.persistence.validation.factory"} . If the containing archive is a bean archive, the container must pass the {@code BeanManager} instance in the map with the key {@code "jakarta.persistence.bean.manager"} .
Return:
{@link EntityManagerFactory} for the persistence unit specified by the metadata
Since:
JPA 1.0
EntityManagerFactory createEntityManagerFactory(PersistenceConfiguration configuration)
Called by Persistence class when an EntityManagerFactory is to be created.
Parameters:
configuration - the configuration of the persistence unit
Return:
EntityManagerFactory for the persistence unit, or null if the provider is not the right provider
Throws:
IllegalStateException - if required configuration is missing
See Also:
createEntityManagerFactory()
Since:
JPA 3.2
EntityManagerFactory createEntityManagerFactory(String emName, Map<?,?> map)
Called by Persistence class when an EntityManagerFactory is to be created.
Parameters:
emName - the name of the persistence unit
map - a Map of properties for use by the persistence provider. These properties may be used to override the values of the corresponding elements in the {@code persistence.xml} file or specify values for properties not specified in the {@code persistence.xml} (and may be null if no properties are specified).
Return:
EntityManagerFactory for the persistence unit, or null if the provider is not the right provider
See Also:
createEntityManagerFactory()
Since:
JPA 1.0
void generateSchema(PersistenceUnitInfo info, Map<?,?> map)
Create database schemas and/or tables and/or create DDL scripts as determined by the supplied properties.

Called by the container when schema generation is to occur as a separate phase from creation of the entity manager factory.

Parameters:
info - metadata for use by the persistence provider
map - properties for schema generation; these may also include provider-specific properties
Throws:
PersistenceException - if insufficient or inconsistent configuration information is provided of if schema generation otherwise fails
Since:
JPA 2.1
boolean generateSchema(String persistenceUnitName, Map<?,?> map)
Create database schemas and/or tables and/or create DDL scripts as determined by the supplied properties.

Called by the Persistence class when schema generation is to occur as a separate phase from creation of the entity manager factory.

Parameters:
persistenceUnitName - the name of the persistence unit
map - properties for schema generation; these may also contain provider-specific properties. The value of these properties override any values that may have been configured elsewhere.
Return:
true if schema was generated, otherwise false
Throws:
PersistenceException - if insufficient or inconsistent configuration information is provided or if schema generation otherwise fails
Since:
JPA 2.1
ProviderUtil getProviderUtil()
Return the utility interface implemented by the persistence provider.
Return:
an instance of {@link ProviderUtil}
Since:
JPA 2.0