NHibernate 2.0

Well, here comes NHibernate 2.0!

Downloading from SourceForge: http://sourceforge.net/project/showfiles.php?group_id=73818


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Details without translation (many letters of niasilil):
New features:

• Add join mapping
• <union> tables and <union-subclass> inheritance strategy
• HQL functions 'current_timestamp', 'str' and 'locate' for PostgreSQL dialect
• VetoInterceptor - Cancel Calls to Delete, Update, Insert via the IInterceptor Interface
• Using constants in select clause of HQL
• Added [Table per subclass, using a discriminator] Support to Nhibernate
• Added support for paging in sub queries.
• Auto discovery of types in custom SQL queries
• Added OnPreLoad & OnPostLoad Lifecycle Events
• Added ThreadStaticSessionContext
• Added <on-delete> tag to <key>
• Added foreign-key = "none" since the Parent have not-found = "ignore". (not relevant to SQL Server)
• Added DetachedQuery
• ExecuteUpdate support for native SQL queries
• From Hibernate:

Breaking changes:

• Changed NHibernate.Expression namespace to NHibernate.Criterion
• Changed NHiberante.Property namespace to NHiberante.Properties
• There is no need to read or write data.
• <nhibernate> section is ignored, using <hibernate-configuration> section (note that they have different XML formats)
• Configuration values ​​are no longer prefixed by "hibernate.", If you specify just "dialect"
• IInterceptor changed to match the Hibernate 3.2 Interceptor - interface changed
• If there is no validity.
• NHibernate will return long for count (*) queries on SQL Server
• SaveOrUpdateCopy return a new instance of the entity without change the original.
• INamingStrategy interface changed
• NHibernate.Search - Moved Index / Store attributes to the Attributes namespace
• Changes to IType, IEntityPersister, IVersionType - NHibernate.
• <formula> must contain parenthesis when needed
• IBatcher interface change

Fixed bugs:

• Fixing bug with HQL queries on map with formula.
• Fixed when the <idbag> has a <composite-element> inside; inside which has a <many-to-one>
• Multi criteria doesn’t support limiting the query size using SQL.
• Fixed issue of MsSql2005 dialect sorting incorrectly on machines with multiple processors
• Fixed an issue with getting NullReferenceException when using SimpleSubqueryExpression within another subexpression
• Fixed Null Reference Exception when deleting a <list> that has holes in it.
• Fixed duplicate column joints of similar tables
• Fixed MultiQuery
• Fixed concat function with a parameter contains a comma, and using MaxResults
• Fixed failure with Formula when using the MSSQL 2005 dialect
• Fixed PersistentEnumType incorrectly assumes types have zero-value defined
• Fixed SetMaxResults () returns one less row when SetFirstResult () is not used
• Fixed Bug in GetLimitString for SQL Server 2005 when ordering by aggregates
• Fixed SessionImpl.EnableFilter returns wrong filter if already enabled
• Fixed Generated Id Does Not Work For MySQL
• Fixed one-to-one can never be lazy
• Fixed FOR UPDATE statements not generated for pessimistic locking

Improvements:

• Added Guid support for Postgre Dialect
• Added support for comments in queries
• Added Merge and Persist to ISession
• Support IFF for SQL Server
• IdBag now work with Identity columns
• Multi Criteria now uses the Result Transformer
• Handling key-many-to-one && not-found
• Can now specify that a class is abstract in the mapping.

Guidance:

• Preferred use for defining Criteria queries.

Child projects:

• Added NHibernate.Validator
• Added NHibernate.Shards
• NHibernate.Search updated match to Hibernate Search 3.0

Criteria API:

• Allow Inspection, Traversal, Cloning and Transformation for ICriteria and DetachedCriteria
• Added DetachedCriteria.For <T>
• Added Multi Criteria
• Projections can be passed the SQL statement.
• Added support for calling Sql Functions (HQL concept) from projections (Criteria).
• Added ConstantProjection
• Added CastProjection
• Can be used as parameter to ICriterion

Better validation for proxies:

• Now supports checking for fields
• Updated Castle.DynamicProxy2.dll to have better support for .NET 2.0 SP1

SQL Lite:

• Support for multi query and multi criteria
• Supporting subselects and limits
• Allowed DROP TABLE IF EXISTS semantics

PostgreSQL (Npgsql):

• Enable Multi Query support for PostgreSQL

FireBird:

• Much better overall support

Batching:

• Changed it out.
• AbstractBatcher before it preparation

Error handling:

• Better error message in exception values ​​in Int32Type
• This is a subquery that contains a reference to non existing property.
• Throwing of a unique meaningful exception when calling
• Overall better error handling
• Better debug logs

Refactoring:

• Major refactoring internally to use generic collections instead of the non generic types.
• Major refactoring to hbm files.

Factories:

• Added ProxyFactoryFactory
• Added BatchingBatcherFactory