/// <summary>
/// Converts a <see cref="PersistenceReaderElement"/> to a <see cref="ResolvedParameter"/>, meaning persistence repository
/// types referenced in configuration by name can be injected into the constructor of the parent provider.
/// </summary>
/// <remarks><see cref="ResolvedParameter"/> types allow for the deferred resolution of a type by using
/// an <see cref="IComponentContext"/> to queue calls to resolve the instances, which would otherwise be
/// tricky to do via chaining modules together</remarks>
/// <returns>The parameter.</returns>
public static ResolvedParameter ToParameter(this PersistenceReaderElement element)
{
PersistenceReaderElement localElement = element;
return(new ResolvedParameter(
(p, c) =>
(p.ParameterType == localElement.ToType() || p.Name == "reader" ||
localElement.ToType().IsAssignableFrom(p.ParameterType)),
(p, c) => ResolveNamedPersistenceRepositoryProvider(c, localElement)
));
}
/// <summary>
/// Resolves the named persistence reader using an <see cref="IComponentContext"/>.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="providerElement">The provider element.</param>
/// <returns></returns>
/// <remarks></remarks>
private static object ResolveNamedPersistenceRepositoryProvider(IComponentContext context, PersistenceReaderElement providerElement)
{
return(context.ResolveNamed(providerElement.InternalKey, providerElement.ToType()));
}
/// <summary>
/// Resolves the named persistence reader using an <see cref="IComponentContext"/>.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="providerElement">The provider element.</param>
/// <returns></returns>
/// <remarks></remarks>
private static object ResolveNamedPersistenceRepositoryProvider(IComponentContext context, PersistenceReaderElement providerElement)
{
return context.ResolveNamed(providerElement.InternalKey, providerElement.ToType());
}
