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POQuartz.NET, NH ISession & Ninject Scope
 

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    <p>I'm trying to implement a service that will run jobs based on Quartz.Net. The jobs may have dependencies like IRepository&lt;> and the repository implementation will have a NHibernate ISession injected into it. (Quartz will be hosted in a Windows Service). Jobs are resolved via a IJob factory implementation that uses Ninject to resolve (currently wrapped in a IServiceLocator implementation).</p> <p><strong>Job Scope</strong></p> <p>I would like to be able to use Ninject to scope the ISession per Job so that there is one session created per job that may be used in multiple IRepository&lt;>'s .</p> <p>Not sure if this is possible but am wondering if anyone has experience with this?</p> <p>Can I somehow use the Job context to create a Scope that is used by Kernel.InScope(???).</p> <p><strong>Quartz.Net IJobFactory:</strong> </p> <pre><code>public class JobFactory : IJobFactory { readonly IServiceLocator locator; public JobFactory(IServiceLocator locator) { this.locator = locator; } public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler) { try { var jobDetail = bundle.JobDetail; var jobType = jobDetail.JobType; return (IJob)locator.Resolve(jobType); } catch (Exception e) { var se = new SchedulerException("Problem instantiating class", e); throw se; } } } </code></pre> <p><strong>Ninject Bindings:</strong></p> <pre><code> //Service Locator Bind&lt;IServiceLocator&gt;().To&lt;NinjectAdapter&gt;(); //Quartz Bindings Bind&lt;IJobFactory&gt;().To&lt;JobFactory&gt;(); //NHibernate Bindings Bind&lt;ISessionFactory&gt;().ToMethod(ctx =&gt; ctx.Kernel.Get&lt;NHibernateConfiguration&gt;().BuildSessionFactory()).InSingletonScope(); Bind&lt;ISession&gt;().ToMethod(ctx =&gt; ctx.Kernel.Get&lt;ISessionFactory&gt;().OpenSession());// ToDo: Figure out how to scope session //Repository Bindings Bind(typeof (IRepository&lt;&gt;)).To(typeof (ReadWriteRepository&lt;&gt;)); </code></pre> <p><strong>Main Execution:</strong></p> <pre><code> InitializeIoC(); scheduler = schedulerFactory.GetScheduler(); scheduler.JobFactory = ServiceLocator.Resolve&lt;IJobFactory&gt;(); InitializeJobs(); scheduler.Start(); </code></pre> <p><strong>Example Job:</strong></p> <pre><code>public class TestJob3 : IJob { private readonly IRepository&lt;Customer&gt; repo; private readonly IRepository&lt;Order&gt; orderRepo; public TestJob3(IRepository&lt;Customer&gt; repo, IRepository&lt;Order&gt; orderRepo) { //orderRepo and repo should have the same ISession this.repo = repo; this.oderRepo = orderRepo; System.Diagnostics.Debug.WriteLine("Job 3 Created"); } #region Implementation of IJob public void Execute(IJobExecutionContext context) { System.Diagnostics.Debug.WriteLine("Job 3 Executing"); using (var scope = new TransactionScope()) { var customer = repo.GetById(1); customer.Name = "Blue Goats"; repo.Save(customer); scope.Complete(); } } #endregion } </code></pre> <p>** Repository Snippet: **</p> <pre><code>public class ReadWriteRepository&lt;TEntity&gt; : IRepository&lt;TEntity&gt; where TEntity : class, IRootEntity { private readonly ISession session; public ReadWriteRepository(ISession session) { this.session = session; } public virtual TEntity GetById(int id) { var entity = session.Get&lt;TEntity&gt;(id); return entity; } public virtual TEntity Save(TEntity entity) { session.SaveOrUpdate(entity); return entity; } } </code></pre> <p>Thanks for taking the time!</p> <p><strong>Update</strong> I ended up using Remo's suggestion and am using InCallScope():</p> <pre><code>Bind&lt;ISession&gt;().ToMethod(ctx =&gt; ctx.Kernel.Get&lt;ISessionFactory&gt;().OpenSession()).InCallScope(); </code></pre> <p>The way I like to think of it (correct or not?) is everything from the "initial" get reuses the same items throughout the dependency tree</p>
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    1. COCan you post your solution? I'm with the same issue.
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