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  1. PO
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    <p>Here is how I'm using it. I'm using IRepository for all the operations that are common to all of my repositories.</p> <pre><code>public interface IRepository&lt;T&gt; where T : PersistentObject { T GetById(object id); T[] GetAll(); void Save(T entity); } </code></pre> <p>and I use also a dedicated an ITRepository for each <a href="http://dddstepbystep.com/wikis/ddd/aggregate.aspx" rel="nofollow noreferrer">aggregate</a> for the operation that are distinct to this repository. For example for user I will use IUserRepository to add method that are distinct to UserRepository:</p> <pre><code>public interface IUserRepository : IRepository&lt;User&gt; { User GetByUserName(string username); } </code></pre> <p>The implementation will look like this:</p> <pre><code>public class UserRepository : RepositoryBase&lt;User&gt;, IUserRepository { public User GetByUserName(string username) { ISession session = GetSession(); IQuery query = session.CreateQuery("from User u where u.Username = :username"); query.SetString("username", username); var matchingUser = query.UniqueResult&lt;User&gt;(); return matchingUser; } } public class RepositoryBase&lt;T&gt; : IRepository&lt;T&gt; where T : PersistentObject { public virtual T GetById(object id) { ISession session = GetSession(); return session.Get&lt;T&gt;(id); } public virtual T[] GetAll() { ISession session = GetSession(); ICriteria criteria = session.CreateCriteria(typeof (T)); return criteria.List&lt;T&gt;().ToArray(); } protected ISession GetSession() { return new SessionBuilder().GetSession(); } public virtual void Save(T entity) { GetSession().SaveOrUpdate(entity); } } </code></pre> <p>Than in the UserController will look as:</p> <pre><code>public class UserController : ConventionController { private readonly IUserRepository _repository; private readonly ISecurityContext _securityContext; private readonly IUserSession _userSession; public UserController(IUserRepository repository, ISecurityContext securityContext, IUserSession userSession) { _repository = repository; _securityContext = securityContext; _userSession = userSession; } } </code></pre> <p>Than the repository is instantiated using dependency injection pattern using custom controller factory. I'm using <a href="http://structuremap.sourceforge.net/Default.htm" rel="nofollow noreferrer">StructureMap</a> as my dependency injection layer.</p> <p>The database layer is NHibernate. ISession is the gateway to the the database in this session. </p> <p>I'm suggest you to look on <a href="http://code.google.com/p/codecampserver/" rel="nofollow noreferrer">CodeCampServer</a> structure, you can learn a lot from it.</p> <p>Another project that you can learn fro it is <a href="http://whocanhelpme.codeplex.com/" rel="nofollow noreferrer">Who Can Help Me</a>. Which I don't dig enough in it yet.</p>
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    1. PODatabase abstraction layer design - Using IRepository the right way?
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    1. USFitzchak Yitzchaki
    1. USFitzchak Yitzchaki
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    1. COWhats is this ISession?
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      1. USAlastair Pitts
    2. COI forgot to mention that it use NHibernate as the persistence layer. The ISession interface give you what you need to communicate with the server for this session.
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      1. USFitzchak Yitzchaki
    3. COAhhh, now it makes sense :)
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      1. USAlastair Pitts
 

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