public ExportDescriptorRegistryUpdate(
IDictionary<CompositionContract, ExportDescriptor[]> partDefinitions,
ExportDescriptorProvider[] exportDescriptorProviders)
{
_partDefinitions = partDefinitions;
_exportDescriptorProviders = exportDescriptorProviders;
}
public bool TryDequeueNextProvider(out ExportDescriptorProvider provider)
{
if (_remainingProviders.Count == 0)
{
provider = null;
return(false);
}
provider = _remainingProviders.Dequeue();
return(true);
}
public bool TryDequeueNextProvider(out ExportDescriptorProvider provider)
{
if (_remainingProviders.Count == 0)
{
provider = null;
return false;
}
provider = _remainingProviders.Dequeue();
return true;
}
/// <summary>
/// Create the composition host.
/// </summary>
/// <returns>The container as an <see cref="CompositionHost"/>.</returns>
public static CompositionHost CreateCompositionHost(IEnumerable<ExportDescriptorProvider> providers)
{
Requires.NotNull(providers, "providers");
var allProviders = new ExportDescriptorProvider[] {
new LazyExportDescriptorProvider(),
new ExportFactoryExportDescriptorProvider(),
new ImportManyExportDescriptorProvider(),
new LazyWithMetadataExportDescriptorProvider(),
new CurrentScopeExportDescriptorProvider(),
new ExportFactoryWithMetadataExportDescriptorProvider()
}
.Concat(providers)
.ToArray();
var container = new LifetimeContext(new ExportDescriptorRegistry(allProviders), s_noBoundaries);
return new CompositionHost(container);
}
public ExportDescriptorRegistry(ExportDescriptorProvider[] exportDescriptorProviders)
{
_exportDescriptorProviders = exportDescriptorProviders;
}
