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POHow can I force Unity App Block to load new Object instances in WCF?
 

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  1. POHow can I force Unity App Block to load new Object instances in WCF?
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    <p>I am using Unity Application Block to load my dependancies, a problem I am having is when all my dependancies are loaded it is behaving abnormally.</p> <p>I have a service that takes a business interface using constructor injection, and that business interface takes a repository interface as constructor injection. The problem I have is when I load user details from the database the field values are always the same (even after I manually change them in the DB). Therefore I think it is because it is using the same instance EntityFramework context instance for each time the service is opened.</p> <p>The only way I can get Entity Framework to load the correct details is to recycle IIS.</p> <p>Is there a way I can force Unity to create new object instances for its dependancies and force them to be dispose when the WCF request has completed? I have tried using the transient lifetime manager but this is not curing the problem. </p> <p><strong>Code:</strong></p> <pre><code>public class UserService : IUserService { private IUserAdmin _UserBusiness { get; set; } public UserService() { } [InjectionConstructor] public UserService(IUserAdmin userBusiness) : this() { this._UserBusiness = userBusiness; } } public class UserAdmin : BusinessBase, IUserAdmin { private IRepository&lt;DBUserAccount&gt; _UserRepository { get; set; } [InjectionConstructor] public UserAdmin(IRepository&lt;DBUserAccount&gt; userRepository) { this._UserRepository = userRepository; } } public class GenericRepository&lt;T&gt; : IDisposable, IRepository&lt;T&gt; where T : class, new() { private Entities _Context; private ObjectSet&lt;T&gt; _ObjectSet; public GenericRepository() { this._Context = new Entities(); this._ObjectSet = this._Context.CreateObjectSet&lt;T&gt;(); } } </code></pre> <p>Unity Config:</p> <pre><code>&lt;register type="Services.Contracts.IUserService, Server.Services, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be" mapTo="Services.Implementations.UserService, Server.Services, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be"&gt; &lt;lifetime type="transient"/&gt; &lt;/register&gt; &lt;register type="Server.Business.Users.IUserAdmin, Server.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be" mapTo="Server.Business.Users.UserAdmin, Server.Business, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be"&gt; &lt;lifetime type="transient"/&gt; &lt;/register&gt; &lt;register type="Server.DataLogic.IRepository`1[[Server.DataModels.DBUserAccount, Server.DataModels, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be]], Server.DataLogic, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be" mapTo="Server.DataLogic.GenericRepository`1[[Server.DataModels.DBUserAccount, Server.DataModels, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be]], Server.DataLogic, Version=1.0.0.0, Culture=neutral, PublicKeyToken= 683f160d975782be"&gt; &lt;lifetime type="transient"/&gt; &lt;/register&gt; </code></pre>
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    1. COWhat is the instance mode of WCF? Is it per-call or singleton? If it is singleton, then there may be issue.
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    2. COIt is the default which I believe is per session, I will change this to per call to see if it has any effect
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      1. USAndy Clark
    3. COI have added the Service Behaviour attrribute to force per call behaviour and it has not helped :(
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