C# Class Customer.Project.DataAccess.NHibernateHelpers.NHibernateSessionManager

Handles creation and management of sessions and transactions. It is a singleton because building the initial session factory is very expensive. Inspiration for this class came from Chapter 8 of Hibernate in Action by Bauer and King. Although it is a sealed singleton you can use TypeMock (http://www.typemock.com) for more flexible testing.

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Private Properties

Property	Type	Description
AutoMappings	ISessionFactory
BeginTransaction	void
GetSession	ISession
IsInWebContext	bool
NHibernateSessionManager	System

Public Methods

Method	Description
BeginTransaction ( ) : void	Begins the transaction.
CloseSession ( ) : void	Closes the session.
CloseSessionFactory ( ) : void	Closes the session and the disposes the session factory
CommitTransaction ( ) : void	Commits the transaction / Unit of Work if autocommit is set to true, canceltransaction to false and if the transaction is not committed or rolled back yet
ExportDatabaseSchema ( ) : void	Exports the database schema.
GetSession ( ) : ISession	Gets the session.
ImportDatabaseSchema ( ) : void	Imports the database schema.
InitSessionFactory ( ) : void
InitSessionFactory ( string xmlConfigFile ) : void	Inits the session factory.
OpenNewSession ( ) : ISession
RegisterInterceptor ( IInterceptor interceptor ) : void	Allows you to register an interceptor on a new session. This may not be called if there is already an open session attached to the HttpContext. If you have an interceptor to be used, modify the HttpModule to call this before calling BeginTransaction().
RollbackTransaction ( ) : void	Rollbacks the transaction.

Private Methods

Method	Description
AutoMappings ( ) : ISessionFactory
BeginTransaction ( ISession session ) : void
GetSession ( IInterceptor interceptor ) : ISession	Gets a session with or without an interceptor. This method is not called directly; instead, it gets invoked from other public methods.
IsInWebContext ( ) : bool
NHibernateSessionManager ( ) : System	Initializes the NHibernate session factory upon instantiation.

Method Details

BeginTransaction() public method

Begins the transaction.

public BeginTransaction ( ) : void
return	void

CloseSession() public method

Closes the session.

public CloseSession ( ) : void
return	void

CloseSessionFactory() public method

Closes the session and the disposes the session factory

public CloseSessionFactory ( ) : void
return	void

CommitTransaction() public method

Commits the transaction / Unit of Work if autocommit is set to true, canceltransaction to false and if the transaction is not committed or rolled back yet

public CommitTransaction ( ) : void
return	void

ExportDatabaseSchema() public method

Exports the database schema.

public ExportDatabaseSchema ( ) : void
return	void

GetSession() public method

Gets the session.

public GetSession ( ) : ISession
return	ISession

ImportDatabaseSchema() public method

Imports the database schema.

public ImportDatabaseSchema ( ) : void
return	void

InitSessionFactory() public method

public InitSessionFactory ( ) : void
return	void

InitSessionFactory() public method

Inits the session factory.

public InitSessionFactory ( string xmlConfigFile ) : void
xmlConfigFile	string
return	void

OpenNewSession() public method

public OpenNewSession ( ) : ISession
return	ISession

RegisterInterceptor() public method

Allows you to register an interceptor on a new session. This may not be called if there is already an open session attached to the HttpContext. If you have an interceptor to be used, modify the HttpModule to call this before calling BeginTransaction().

public RegisterInterceptor ( IInterceptor interceptor ) : void
interceptor	IInterceptor
return	void

RollbackTransaction() public method

Rollbacks the transaction.

public RollbackTransaction ( ) : void
return	void