What does NHibernate flush do?

NHibernate sees that your session is dirty and flushes the changes to the database. You need update and save only if you made the changes outside of the session. (This means with a detached entity, that is an entity that is not known by the session).

What is the difference between NHibernate and Entity Framework?

Entity framework used code-based (fluent) configuration or attribute-based (fluent) mapping. NHibernate uses XML and Fluent configuration and mapping. NHibernate Attributes is used to provide attribute mapping. NHibernate provides custom conventions and EF doesn’t provide them.

How do I configure NHibernate?

3.4. NHibernate provided ADO.NET connection

1. Pass an instance of IDictionary mapping property names to property values to Configuration. SetProperties().
2. Include elements in a configuration section in the application configuration file.
3. Include elements in hibernate.

How do you use NHibernate?

Welcome to NHibernate

1. Installing NHibernate.
2. Defining a simple business object class.
3. Create an NHibernate mapping to load and save the business object.
4. Configure NHibernate to talk to your local database.
5. Automatically generate a database.
6. Writing simple CRUD code using the Repository pattern.

What is session in NHibernate?

The NHibernate session encapsulates a unit of work as specified by the unit of work pattern.

Is NHibernate thread safe?

The NHibernate ISession is not thread-safe, that is, it shouldn’t be shared by multiple threads. The ISessionFactory, however, is thread-safe, and thus it should be used to create ISession instances as needed.

What is difference between hibernate and NHibernate?

Hibernate and NHibernate belong to “Object Relational Mapper (ORM)” category of the tech stack. NHibernate is an open source tool with 1.64K GitHub stars and 825 GitHub forks. are some of the popular companies that use Hibernate, whereas NHibernate is used by Pinnacle Sports, ProProcure, and CRM Solutions.

Is NHibernate free?

NHibernate is free and open-source software that is distributed under the GNU Lesser General Public License. NHibernate is a port of Hibernate.

What is NHibernate .net core?

NHibernate is a mature, open source object-relational mapper for the . NET framework. It’s actively developed, fully featured and used in thousands of successful projects.

What is NHibernate session?

How do I write a query in NHibernate?

Queries are created from an ISession using the syntax: IList cats = session. Query() .

What is NHibernate DLL?

NHibernate is an object–relational mapping (ORM) solution for the Microsoft . NET platform. It provides a framework for mapping an object-oriented domain model to a traditional relational database. NHibernate is free and open-source software that is distributed under the GNU Lesser General Public License.

How to group by in NHibernate iprojection?

The class NHibernate.Expression.Projections is a factory for IProjection instances. We apply a projection to a query by calling SetProjection () . There is no explicit “group by” necessary in a criteria query. Certain projection types are defined to be grouping projections , which also appear in the SQL group by clause.

What is NHibernate?

NHibernate features an intuitive, extensible criteria query API. 16.1. Creating an ICriteria instance The interface NHibernate.ICriteria represents a query against a particular persistent class.

What is a projection in NHibernate?

I don’t know about NHibernate, but in general, a projection is a transformation of a set into another set. In SQL, it is expressed as a SELECT. Share Improve this answer Follow answered Jan 20 ’11 at 12:27

Why does nhnhibernate Break my Custom LINQ Providers?

NHibernate Linq internals have undergone some minor changes which may break custom Linq providers due to method signature changes and additional methods to implement. IMapping interface has an additional Dialect member. ISessionFactoryImplementor has lost it, since it gains it back through IMapping.