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SessionFactory (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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org.hibernate
Interface SessionFactory

All Superinterfaces:

Referenceable, Serializable

All Known Subinterfaces:

SessionFactoryImplementor

All Known Implementing Classes:

SessionFactoryImpl, SessionFactoryStub

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public interface SessionFactory

extends Referenceable, Serializable

Creates Sessions. Usually an application has a single SessionFactory. Threads servicing client requests obtain Sessions from the factory.

Implementors must be threadsafe.

SessionFactorys are immutable. The behaviour of a SessionFactory is controlled by properties supplied at configuration time. These properties are defined on Environment.

Author:

Gavin King

See Also:

Session, Environment, Configuration, ConnectionProvider, TransactionFactory

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Method Summary
void	close()           Destroy this SessionFactory and release all resources (caches, connection pools, etc).
void	evict(Class persistentClass)           Evict all entries from the second-level cache.
void	evict(Class persistentClass, Serializable id)           Evict an entry from the second-level cache.
void	evictCollection(String roleName)           Evict all entries from the second-level cache.
void	evictCollection(String roleName, Serializable id)           Evict an entry from the second-level cache.
void	evictEntity(String entityName)           Evict all entries from the second-level cache.
void	evictEntity(String entityName, Serializable id)           Evict an entry from the second-level cache.
void	evictQueries()           Evict any query result sets cached in the default query cache region.
void	evictQueries(String cacheRegion)           Evict any query result sets cached in the named query cache region.
Map	getAllClassMetadata()           Get all ClassMetadata as a Map from entityname String to metadata object
Map	getAllCollectionMetadata()           Get all CollectionMetadata as a Map from role name to metadata object
ClassMetadata	getClassMetadata(Class persistentClass)           Get the ClassMetadata associated with the given entity class
ClassMetadata	getClassMetadata(String entityName)           Get the ClassMetadata associated with the given entity name
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.
Statistics	getStatistics()           Get the statistics for this session factory
boolean	isClosed()           Was this SessionFactory already closed?
Session	openSession()           Create database connection and open a Session on it.
Session	openSession(Connection connection)           Open a Session on the given connection.
Session	openSession(Connection connection, Interceptor interceptor)           Open a Session on the given connection, specifying an interceptor.
Session	openSession(Interceptor interceptor)           Create database connection and open a Session on it, specifying an interceptor.
StatelessSession	openStatelessSession()           Get a new stateless session.
StatelessSession	openStatelessSession(Connection connection)           Get a new stateless session for the given JDBC connection.

 

Methods inherited from interface javax.naming.Referenceable

getReference

 

Method Detail

openSession

public Session openSession(Connection connection)

Open a Session on the given connection.

Note that the second-level cache will be disabled if you supply a JDBC connection. Hibernate will not be able to track any statements you might have executed in the same transaction. Consider implementing your own ConnectionProvider.

Parameters:

connection - a connection provided by the application.

Returns:

Session

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openSession

public Session openSession(Interceptor interceptor)
                    throws HibernateException

Create database connection and open a Session on it, specifying an interceptor.

Parameters:

interceptor - a session-scoped interceptor

Returns:

Session

Throws:

HibernateException

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openSession

public Session openSession(Connection connection,
                           Interceptor interceptor)

Open a Session on the given connection, specifying an interceptor.

Note that the second-level cache will be disabled if you supply a JDBC connection. Hibernate will not be able to track any statements you might have executed in the same transaction. Consider implementing your own ConnectionProvider.

Parameters:

connection - a connection provided by the application.

interceptor - a session-scoped interceptor

Returns:

Session

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openSession

public Session openSession()
                    throws HibernateException

Create database connection and open a Session on it.

Returns:

Session

Throws:

HibernateException

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getCurrentSession

public 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 a JTA TransactionManagerLookup is configured this will default to the JTASessionContext impl.

Returns:

The current session.

Throws:

HibernateException - Indicates an issue locating a suitable current session.

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getClassMetadata

public ClassMetadata getClassMetadata(Class persistentClass)
                               throws HibernateException

Get the ClassMetadata associated with the given entity class

Throws:

HibernateException

See Also:

ClassMetadata

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getClassMetadata

public ClassMetadata getClassMetadata(String entityName)
                               throws HibernateException

Get the ClassMetadata associated with the given entity name

Throws:

HibernateException

Since:

3.0

See Also:

ClassMetadata

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getCollectionMetadata

public CollectionMetadata getCollectionMetadata(String roleName)
                                         throws HibernateException

Get the CollectionMetadata associated with the named collection role

Throws:

HibernateException

See Also:

CollectionMetadata

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getAllClassMetadata

public Map getAllClassMetadata()
                        throws HibernateException

Get all ClassMetadata as a Map from entityname String to metadata object

Returns:

a map from String an entity name to ClassMetaData

Throws:

HibernateException

Since:

3.0 changed key from Class to String

See Also:

ClassMetadata

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getAllCollectionMetadata

public Map getAllCollectionMetadata()
                             throws HibernateException

Get all CollectionMetadata as a Map from role name to metadata object

Returns:

a map from String to CollectionMetadata

Throws:

HibernateException

See Also:

CollectionMetadata

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getStatistics

public Statistics getStatistics()

Get the statistics for this session factory

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close

public 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 close().

Throws:

HibernateException

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isClosed

public boolean isClosed()

Was this SessionFactory already closed?

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evict

public void evict(Class persistentClass)
           throws HibernateException

Evict all entries from the second-level cache. This method occurs outside of any transaction; it performs an immediate "hard" remove, so does not respect any transaction isolation semantics of the usage strategy. Use with care.

Throws:

HibernateException

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evict

public void evict(Class persistentClass,
                  Serializable id)
           throws HibernateException

Evict an entry from the second-level cache. This method occurs outside of any transaction; it performs an immediate "hard" remove, so does not respect any transaction isolation semantics of the usage strategy. Use with care.

Throws:

HibernateException

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evictEntity

public void evictEntity(String entityName)
                 throws HibernateException

Evict all entries from the second-level cache. This method occurs outside of any transaction; it performs an immediate "hard" remove, so does not respect any transaction isolation semantics of the usage strategy. Use with care.

Throws:

HibernateException

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evictEntity

public void evictEntity(String entityName,
                        Serializable id)
                 throws HibernateException

Evict an entry from the second-level cache. This method occurs outside of any transaction; it performs an immediate "hard" remove, so does not respect any transaction isolation semantics of the usage strategy. Use with care.

Throws:

HibernateException

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evictCollection

public void evictCollection(String roleName)
                     throws HibernateException

Evict all entries from the second-level cache. This method occurs outside of any transaction; it performs an immediate "hard" remove, so does not respect any transaction isolation semantics of the usage strategy. Use with care.

Throws:

HibernateException

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evictCollection

public void evictCollection(String roleName,
                            Serializable id)
                     throws HibernateException

Evict an entry from the second-level cache. This method occurs outside of any transaction; it performs an immediate "hard" remove, so does not respect any transaction isolation semantics of the usage strategy. Use with care.

Throws:

HibernateException

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evictQueries

public void evictQueries()
                  throws HibernateException

Evict any query result sets cached in the default query cache region.

Throws:

HibernateException

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evictQueries

public void evictQueries(String cacheRegion)
                  throws HibernateException

Evict any query result sets cached in the named query cache region.

Throws:

HibernateException

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openStatelessSession

public StatelessSession openStatelessSession()

Get a new stateless session.

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openStatelessSession

public StatelessSession openStatelessSession(Connection connection)

Get a new stateless session for the given JDBC connection.

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getDefinedFilterNames

public Set getDefinedFilterNames()

Obtain a set of the names of all filters defined on this SessionFactory.

Returns:

The set of filter names.

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getFilterDefinition

public 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.

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