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MEF Preview 6

Released:	Jul 13 2009
Updated:	Aug 28 2009 by haveriss
Dev status:	Stable
Rated:	based on 5 ratings (Add your own rating)
Reviewed:	3 reviews
Downloaded:	2957 downloads
Wiki link:	[release:30098]

MEF_Preview_6

application, 4923K, uploaded Jul 13 2009 - 2957 downloads

Microsoft Public License (Ms-PL)

This license governs use of the accompanying software. If you use the software, you accept this license. If you do not accept the license, do not use the software.

1. Definitions

The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning here as under U.S. copyright law.

A "contribution" is the original software, or any additions or changes to the software.

A "contributor" is any person that distributes its contribution under this license.

"Licensed patents" are a contributor's patent claims that read directly on its contribution.

2. Grant of Rights

(A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution or any derivative works that you create.

(B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution in the software or derivative works of the contribution in the software.

3. Conditions and Limitations

(A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.

(B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your patent license from such contributor to the software ends automatically.

(C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution notices that are present in the software.

(D) If you distribute any portion of the software in source code form, you may do so only under this license by including a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or object code form, you may only do so under a license that complies with this license.

(E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a particular purpose and non-infringement.

Includes Silverlight 3 solution configuration
Lazy<T> replaces Export<T>
ExportCollection removed
ImportMany now required for all collection imports
PartExportsInheritedAttribute replaced with InheritedExportAttribute
ExportAttribute and ImportAttribute are unsealed
API and implementation changes to support Stable Composition
- xChanging events accompany all xChanged events
- ComposablePartCatalogChangedEventArgs renamed to ComposablePartCatalogChangeEventArgs
- New AtomicComposition class supports Stable Composition
CompositionContainer.GetExportedObject() and related overloads have been renamed to GetExportedValue()
CompositionEngine has been renamed ImportEngine
AttributedModelServices
- AddExportedObject<T>() renamed to AddExportedValue<T>()
- ComposeExportedObject<T>() renamed to ComposeExportedValue<T>()
- New GetMetadataView<TMetadataView>() method
- New SatisfyIImportsOnce() method
ICompositionService changes
- SatisfyImports() renamed SatisfyImportsOnce() and no longer registers the part for recomposition
- UnregisterForRecomposition() removed
- CompositionServiceExtensions removed
ContractTypeAttribute removed since exports on interfaces are now inherited
Contract adapters have been removed

Releases

Released | Planned

	MEF Preview 8 Oct 22 2009, Beta
	MEF Analysis Tool (mefx) for .NET 4.0 Beta Sep 25 2009, Beta
	MEF Preview 7 Aug 27 2009, Alpha
	MEF Preview 6 Jul 13 2009, Stable
	MEF Preview 5 Apr 7 2009, Stable
	MEF Preview 4 release Jan 26 2009, Alpha
	MEF Preview 3 release Nov 25 2008, Alpha

Post .NET 4

Planning

Release Notification

Reviews for this release

Excellent job!
by richterd on Jul 24 2009 at 10:44 PM

Let's face it Lazy<T> is a cooler sounding name than Export<T>. Good ridden to the ExportCollection class too. Didn't really add much in terms of functionality. http://blog.noop.se/archive/2009/07/20/mef-preview-6-out-the-door.aspx
by NoopMan on Jul 20 2009 at 9:02 AM

I prefer the ImportMany attribute to the Import attribute. It makes a lot more sense. So does the Lazy<T> type instead of the Export<T> type. I had no serious issues upgrading from Preview 5 to Preview 6. Nice work. However, your Release notes say GetExportedObject() is changed to GetExportedValue(). I found it had changed to a property called Value.
by swhitlock on Jul 14 2009 at 4:45 AM

Managed Extensibility Framework

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