FLUENT NHIBERNATE DOCUMENTATION PDF

Contribute to FluentNHibernate/fluent-nhibernate development by creating an read through our API documentation, or just see what’s available for reading in. i would advice to use some kind of IDE which is capable of autoresolve the namespaces (Visual Studio, Sharpdevelop, ) then you only need to copy paste the. Visual Studio sample solution containing the code using Fluent NHibernate which documentation on how to achieve certain goals with Fluent NHibernate.

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There are numerous customisations available through methods chained from the Map call. The second property is fouent we define what makes up the component.

Documentatiob are a clever way of mapping a normalized data model into a more reasonable object model. If you wanted to do a table-per-class-hierarchy strategy, then you just need to specify the discriminator column in your ClassMap. For example, if your Id property is an intthen we assume you’re using an identity column; similarly, if you use a Guid then we assume it’s a Guid Comb.

Once you’ve read that then you should documentatiom able to find a bit more detail here. Firo 28k 4 45 Dcoumentation a fluent interface that allows you to map your entities completely in code, with all the compile-time safety and refactorability that brings. Fluent mapping is the namesake mapping style that Fluent NHibernate uses.

You can read about them here. Conventions Interfaces to define Conventions used for Auto and Fluent mappings. The getting started guide has a good introduction to mapping with fuent fluent interface.

Fluent NHibernate’s interface is designed for discoverability. That’s it, you’ve now created a references relationship between book and author. For example, if we were to need to change what column the property maps to we could use the Column method, or for explicitly specifying the identity generator you could use the GeneratedBy property.

To quote the NHibernate documentation:. I think you mean a many-to-one. For example, if you’re generating your schema you may want to specify whether the column itself is nullable, you can do that by using the Nullable method and optionally the Not operator property.

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Cfg fluently configuring the NHibernate. You should use this only in very special cases eg.

For illustrative purposes we’ll be mapping the relationship between documsntation book and it’s author. In this case we’ve mapped a component stored in the Address propertythat’s made up of three properties Number, Street, and PostCode ; nnibernate properties are stored in the same table as the parent entity in a normalized fashion. This type of mapping always requires more than one column. References is for creating many-to-one relationships between two entities; you’re referencing another entity, so you use the References method.

Fluent NHibernate API documentation – Stack Overflow

That’s all you need for most situations. In database terms that would be a book table documentatkon a foreign key column referencing the primary key of a author table. The parent mapping dictates what the subclass mapping strategy will be by either specifying a discriminator or documebtation discriminators are required for table-per-class-hierarchy. Apart from the most basic of domains, nearly every situation will require mapping some form of relationship.

The users who voted to close gave this specific reason: That’s all there is to it, parent and child are now mapped as subclasses. A reference is to a single instance of an entity, if you’re mapping a collection then you need either HasMany or an HasManyToMany which can be viewed as the “other side” of the Doucmentation relationship.

Any really only should be used if you know what you’re doing.

NHibernate Mapping Samples – Visual Studio Marketplace

My biggest obstacle to getting the hang of Fluent NHibernate so far has been finding the namespaces for the classes that I need to work through samples I find blog posts, SO questions, etc. HasOne is usually reserved for a special case, generally you’d use a References in most situations see: There are three things you need to provide to be able to map using an Any; a column that holds the type of the entitiy, at least one column holding the identifier value, and a type for the identifier itself.

You may have a customer table that has a series of address columns, ideally you’d want the address columns to be mapped into an Address object, rather than just being properties on a Customer; you can do that with components. As with all other fluent mappings, you can dpcumentation calls to customise the reference relationship.

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If you really do want a one-to-one, then you can use the HasOne method. There are a few different types of collections you can use, and they’re all available under the HasMany call.

Fluent mapping

Automapping all fluenr need to automaticly create mappings for classes. The main difference in this lower scope is that you have to use the m instance to access the available methods; you don’t have to call it mbut we are for brevity. Depending on the return type of the property you supply, Fluent NHibernate will make some doucmentation about the kind of identifier you’re using.

As you can see, the first parameter references the Address property on our entity, which is the property that holds our component.

Property mappings make up a large amount of any mapped domain, so it’s best hhibernate you know how to map them. There are two strategies for mapping inheritance hierarchies in Fluent NHibernate, table-per-class-hierarchy and table-per-subclass; the former being a subclass, and the latter a joined-subclass. They’re just as simple as identities, except we use the Map method. The following is what you’d use inside the constructor of your Book mapping:.

Every mapping requires an Id of some kind, these are mapped using the Id method; this method takes a lambda expression of the property you want to use flunet your Id. DocMax 9, 4 32 The remaining columns hold the identifier. Subclasses work in a very similar way to ClassMap’sin that you create a derived class which you put your mappings in; it’s just you use SubclassMap instead of ClassMap. How could I have possibly used VS as long as I have and never noticed its namespace resolution support?

Sign In Don’t have an account? Fluent NHibernate knows what the return documenttion of your property is, and assumes that the column it’s mapping against will have the same name as the property itself.