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Microsoft Live Labs Volta

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Volta is a pretty new technology from Microsoft which is something similar to GWT. The biggest help that our developers in CAT are going to get from it is they can really create some Really Rich Internet Applications without... See more » Volta is a pretty new technology from Microsoft which is something similar to GWT. The biggest help that our developers in CAT are going to get from it is they can really create some Really Rich Internet Applications without writing a single line of javascript. We do have some great developers here in CAT who is extremely good in .NET yet it takes them a lot to work on JavaScript. The biggest help they are going to get is they can code only and only on C# or vb.net and Volta is going to take care of converting their code into JavaScript for them. The Volta technology preview is a developer toolset that enables you to build multi-tier web applications by applying familiar techniques and patterns. First, design and build your application as a .NET client application, then assign the portions of the application to run on the server and the client tiers late in the development process. The compiler creates cross-browser JavaScript for the client tier, web services for the server tier, and communication, serialization, synchronization, security, and other boilerplate code to tie the tiers together. Developers can target either web browsers or the CLR as clients and Volta handles the complexities of tier-splitting for you. Volta comprises tools such as end-to-end profiling to make architectural refactoring and optimization simple and quick. In effect, Volta offers a best-effort experience in multiple environments without any changes to the application. Volta Fundamentals Microsoft Live Labs Volta helps developers who build distributed applications on the .NET platform, using the Microsoft development stack (programming languages, libraries, and Visual Studio). This version of Volta supports applications that run on the Microsoft CLR, a JavaScript-enabled browser, or a combination of the two. First, this document introduces the Volta technology. Then, it covers two important Volta targets that developers are likely to build and deploy: applications and controls. Recipe-like descriptions for several common web-based scenarios follow. The document concludes with an overview of the libraries installed with Volta, and a summary of known issues and limitations. The Volta Programming Model In essence Volta is a recompiler. Volta works on MSIL rather than on a textual source language. Volta rewrites MSIL into any number of target languages, including, today JavaScript and MSIL itself. Rewriting, as a general technology, lets us delay permanent decisions about architecture, execution platform and browser until after our code is basically working. Furthermore, it frees us from having to express all these irreversible decisions in your source code. The result is a programming model that enables us to easily reshape a working application, and finally realizes the promise of one application running anywhere. Volta effects recompilation through 3 general capabilities: refactoring, retargeting, and remodulating. Refactoring converts single-tier code into distributed, concurrent code as directed by user-supplied annotations. Retargeting converts MSIL code into code for other virtual machines. Remodulating tailors a single piece of code for multiple browsers. The next 3 sections explain in more detail. Architecture Refactoring The Volta programming model takes refactoring one step further. Volta applies transformations on our compiled code based on metadata, in particular, custom attributes prefixed on classes or methods that could run on a server tier. During development, all code runs in the client for ease of testing and debugging. Redistributing the code amongst client and server is merely a matter of moving custom attributes around and rebuilding. The Volta rewriter automatically creates and deploys the marshalling and security code necessary to execute the code on multiple tiers. The following diagram illustrates evolution of a Volta application from single-tier architecture to a distributed, multi-tiered architecture. After refactoring, notice that the same application that used to run in one instance of the CLR is now running on two See less »

Tags:

architecture refactoring, cat volta, cattechnologies, gwt, microsoft live volta, volta fundamentals, volta labs, volta programming model

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