SessionFactory (Hibernate JavaDocs)

All Superinterfaces:

AutoCloseable, Closeable, Referenceable, Serializable

All Known Subinterfaces:

SessionFactoryImplementor

All Known Implementing Classes:

SessionFactoryDelegatingImpl, SessionFactoryImpl
```
public interface SessionFactory
extends Referenceable, Serializable, Closeable
```
The main contract here is the creation of Session instances. Usually an application has a single SessionFactory instance and threads servicing client requests obtain Session instances from this factory.
The internal state of a SessionFactory is immutable. Once it is created this internal state is set. This internal state includes all of the metadata about Object/Relational Mapping.
Implementors must be threadsafe.

See Also:

Configuration

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`close()` Destroy this `SessionFactory` and release all resources (caches, connection pools, etc).
`boolean`	`containsFetchProfileDefinition(String name)` Determine if this session factory contains a fetch profile definition registered under the given name.
`Map<String,ClassMetadata>`	`getAllClassMetadata()` Retrieve the `ClassMetadata` for all mapped entities.
`Map`	`getAllCollectionMetadata()` Get the `CollectionMetadata` for all mapped collections.
`Cache`	`getCache()` Obtain direct access to the underlying cache regions.
`ClassMetadata`	`getClassMetadata(Class entityClass)` Retrieve the `ClassMetadata` associated with the given entity class.
`ClassMetadata`	`getClassMetadata(String entityName)` Retrieve the `ClassMetadata` associated with the given entity class.
`CollectionMetadata`	`getCollectionMetadata(String roleName)` Get the `CollectionMetadata` associated with the named collection role.
`Session`	`getCurrentSession()` Obtains the current session.
`Set`	`getDefinedFilterNames()` Obtain a set of the names of all filters defined on this SessionFactory.
`FilterDefinition`	`getFilterDefinition(String filterName)` Obtain the definition of a filter by name.
`SessionFactoryOptions`	`getSessionFactoryOptions()` Get the special options used to build the factory.
`Statistics`	`getStatistics()` Retrieve the statistics fopr this factory.
`TypeHelper`	`getTypeHelper()` Retrieve this factory's `TypeHelper`.
`boolean`	`isClosed()` Is this factory already closed?
`Session`	`openSession()` Open a `Session`.
`StatelessSession`	`openStatelessSession()` Open a new stateless session.
`StatelessSession`	`openStatelessSession(Connection connection)` Open a new stateless session, utilizing the specified JDBC `Connection`.
`SessionBuilder`	`withOptions()` Obtain a `Session` builder.
`StatelessSessionBuilder`	`withStatelessOptions()` Obtain a `StatelessSession` builder.

Methods inherited from interface javax.naming.Referenceable
getReference

- Method Detail
  - getSessionFactoryOptions
```
SessionFactoryOptions getSessionFactoryOptions()
```
    Get the special options used to build the factory.
    
    Returns:
    
    The special options used to build the factory.
  - withOptions
```
SessionBuilder withOptions()
```
    Obtain a Session builder.
    
    Returns:
    
    The session builder
  - openSession
```
Session openSession()
             throws HibernateException
```
    Open a Session.
    JDBC connection(s will be obtained from the configured ConnectionProvider as needed to perform requested work.
    
    Returns:
    
    The created session.
    
    Throws:
    
    HibernateException - Indicates a problem opening the session; pretty rare here.
  - getCurrentSession
```
Session getCurrentSession()
                   throws HibernateException
```
    Obtains the current session. The definition of what exactly "current" means controlled by the CurrentSessionContext impl configured for use.
    Note that for backwards compatibility, if a CurrentSessionContext is not configured but JTA is configured this will default to the JTASessionContext impl.
    
    Returns:
    
    The current session.
    
    Throws:
    
    HibernateException - Indicates an issue locating a suitable current session.
  - withStatelessOptions
```
StatelessSessionBuilder withStatelessOptions()
```
    Obtain a StatelessSession builder.
    
    Returns:
    
    The stateless session builder
  - openStatelessSession
```
StatelessSession openStatelessSession()
```
    Open a new stateless session.
    
    Returns:
    
    The created stateless session.
  - openStatelessSession
```
StatelessSession openStatelessSession(Connection connection)
```
    Open a new stateless session, utilizing the specified JDBC Connection.
    
    Parameters:
    
    connection - Connection provided by the application.
    
    Returns:
    
    The created stateless session.
  - getClassMetadata
```
ClassMetadata getClassMetadata(Class entityClass)
```
    Retrieve the ClassMetadata associated with the given entity class.
    
    Parameters:
    
    entityClass - The entity class
    
    Returns:
    
    The metadata associated with the given entity; may be null if no such entity was mapped.
    
    Throws:
    
    HibernateException - Generally null is returned instead of throwing.
  - getClassMetadata
```
ClassMetadata getClassMetadata(String entityName)
```
    Retrieve the ClassMetadata associated with the given entity class.
    
    Parameters:
    
    entityName - The entity class
    
    Returns:
    
    The metadata associated with the given entity; may be null if no such entity was mapped.
    
    Throws:
    
    HibernateException - Generally null is returned instead of throwing.
    
    Since:
    
    3.0
  - getCollectionMetadata
```
CollectionMetadata getCollectionMetadata(String roleName)
```
    Get the CollectionMetadata associated with the named collection role.
    
    Parameters:
    
    roleName - The collection role (in form [owning-entity-name].[collection-property-name]).
    
    Returns:
    
    The metadata associated with the given collection; may be null if no such collection was mapped.
    
    Throws:
    
    HibernateException - Generally null is returned instead of throwing.
  - getAllClassMetadata
```
Map<String,ClassMetadata> getAllClassMetadata()
```
    Retrieve the ClassMetadata for all mapped entities.
    
    Returns:
    
    A map containing all ClassMetadata keyed by the corresponding String entity-name.
    
    Throws:
    
    HibernateException - Generally empty map is returned instead of throwing.
    
    Since:
    
    3.0 changed key from Class to String.
  - getAllCollectionMetadata
```
Map getAllCollectionMetadata()
```
    Get the CollectionMetadata for all mapped collections.
    
    Returns:
    
    a map from String to CollectionMetadata
    
    Throws:
    
    HibernateException - Generally empty map is returned instead of throwing.
  - getStatistics
```
Statistics getStatistics()
```
    Retrieve the statistics fopr this factory.
    
    Returns:
    
    The statistics.
  - close
```
void close()
    throws HibernateException
```
    Destroy this SessionFactory and release all resources (caches, connection pools, etc).
    It is the responsibility of the application to ensure that there are no open sessions before calling this method as the impact on those sessions is indeterminate.
    No-ops if already closed.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Throws:
    
    HibernateException - Indicates an issue closing the factory.
  - isClosed
```
boolean isClosed()
```
    Is this factory already closed?
    
    Returns:
    
    True if this factory is already closed; false otherwise.
  - getCache
```
Cache getCache()
```
    Obtain direct access to the underlying cache regions.
    
    Returns:
    
    The direct cache access API.
  - getDefinedFilterNames
```
Set getDefinedFilterNames()
```
    Obtain a set of the names of all filters defined on this SessionFactory.
    
    Returns:
    
    The set of filter names.
  - getFilterDefinition
```
FilterDefinition getFilterDefinition(String filterName)
                              throws HibernateException
```
    Obtain the definition of a filter by name.
    
    Parameters:
    
    filterName - The name of the filter for which to obtain the definition.
    
    Returns:
    
    The filter definition.
    
    Throws:
    
    HibernateException - If no filter defined with the given name.
  - containsFetchProfileDefinition
```
boolean containsFetchProfileDefinition(String name)
```
    Determine if this session factory contains a fetch profile definition registered under the given name.
    
    Parameters:
    
    name - The name to check
    
    Returns:
    
    True if there is such a fetch profile; false otherwise.
  - getTypeHelper
```
TypeHelper getTypeHelper()
```
    Retrieve this factory's TypeHelper.
    
    Returns:
    
    The factory's TypeHelper

Interface SessionFactory

Method Summary

Methods inherited from interface javax.naming.Referenceable

Method Detail

getSessionFactoryOptions

withOptions

openSession

getCurrentSession

withStatelessOptions

openStatelessSession

openStatelessSession

getClassMetadata

getClassMetadata

getCollectionMetadata

getAllClassMetadata

getAllCollectionMetadata

getStatistics

close

isClosed

getCache

getDefinedFilterNames

getFilterDefinition

containsFetchProfileDefinition

getTypeHelper