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Add a way to pass in dependencies when configuring the LINQ to HQL generator registry class #1669

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@nfplee

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@nfplee
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I'm currently in the process of upgrading a ASP.NET app to use ASP.NET Core and NHibernate 5.1.

When I create the configuration object I say:

var configuration = new Configuration();

configuration.LinqToHqlGeneratorsRegistry<LinqToHqlGeneratorsRegistry>();
configuration.SetInterceptor(new SqlInterceptor(x));

Notice how I can feed dependencies into the constructor of the SqlInterceptor but I cannot do the same for my LinqToHqlGeneratorsRegistry class.

Here's my LinqToHqlGeneratorsRegistry class:

public class LinqToHqlGeneratorsRegistry : DefaultLinqToHqlGeneratorsRegistry {
    public LinqToHqlGeneratorsRegistry() : base() {
        var buildManager = DependencyResolver.Current.GetService<IBuildManager>();

        // Register the method generators
        foreach (var generator in buildManager.GetInstances<BaseHqlGeneratorForMethod>()) {
            this.Merge(generator);
        }

        // Register the property generators
        foreach (var generator in buildManager.GetInstances<BaseHqlGeneratorForProperty>()) {
            this.Merge(generator);
        }
    }
}

This allows me to register my method and property generators in a more modular way. However in .NET Core there is no DependencyResolver. I have found the following https://stackoverflow.com/questions/37813721/asp-net-core-dependencyresolver which describes a way to mimic the DependencyResolver but it still feels like a hack.

Ideally I'd like to be able to feed in an instance of IBuildManager into the constructor of my class.

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