18: Service-Oriented Presentation Layers with .NET in .NET Receive Code-128 in .NET 18: Service-Oriented Presentation Layers with .NET

18: Service-Oriented Presentation Layers with .NET generate, create code-128b none with .net projects Oracle Reports Service VerticalAlignment="Center" FontFamily="Calibri" FontSize="24" FontWeight="Bold"> </TextBlock> Example 18.24 As we have barcode standards 128 for .NET done earlier for the FirstModule, we modify the Initialize() method in SecondModule to register the SecondModuleView with the MainRegion:. public voi d Initialize() { regionManager.RegisterViewWithRegion ("MainRegion", typeof(Views.SecondModuleView)); }.

Example 18.25 In the boo tstrapper, we add metadata for the SecondModule as follows:. catalog.Ad VS .NET Code 128 dModule ( typeof (SecondModule.

SecondModule), InitializationMode.OnDemand ). Example 18.26 We are inf VS .NET barcode 128a orming the catalog that the SecondModule will be loaded on-demand, as our scenario here is to illustrate the dynamic loading and composition of the views. Next, we add some logic to the FirstModule view to demonstrate the loading and composition of SecondModuleView.

We start by adding a button to FirstModule.xaml, as follows:. <Button Padding="5" VerticalAlignment="Center" Width="95" Click="LoadModule_ButtonClick". 18.3 A Simple Service-Oriented User Interface Content="Load Module"> </Button> Example 18.27 In the cod e-behind file (FirstModule.xaml.cs) we add a reference to Microsoft.

Practices.Composite.Modularity and then a private variable to store the module manager reference:.

private re Code 128 Code Set B for .NET adonly IModuleManager moduleManager;. Example 18.28 We then ad barcode 128 for .NET d a constructor for the FirstModuleView to initialize this reference:. public Fir stModuleView(IModuleManager moduleManager) : this() { this.moduleManager = moduleManager; }. Example 18.29 Lastly, we will add a LoadModule_ButtonClick handler in the FirstModule.xaml.cs code-behind file:.

private vo .NET code 128a id LoadModule_ButtonClick (object sender, RoutedEventArgs e) { this.moduleManager.

LoadModule("SecondModule"); }. Example 18.30 At this po visual .net code 128c int, if we compile and execute the solution, we will find that the first module is initialized and loaded statically. Subsequently, if we push the Load Module button, we will see that the second module is loaded dynamically.

. 18: Service-Oriented Presentation Layers with .NET Figure 18. barcode code 128 for .NET 9 We now have a simple, but functional, service-oriented user interface comprised of both static and dynamically loading and composed user interface modules.

. SUMMARY OF KEY POINTS The steps barcode code 128 for .NET required to create a basic service-oriented application with WPF or Silverlight and Prism include setting up a bootstrapper, creating user interface modules and views, and managing the mappings of views and regions..

19 . Service Performance Optimization 19.1 Overv iew 19.2 Service Performance Optimization Techniques 19.

3 Service Composition Performance Optimization Techniques. he IT indu Code 128 for .NET stry has historically often traded high levels of performance for high levels of abstraction. Assembler gave way to C, which gave way to Java and .

NET because easy-to-maintain code was substituted for acceptable, but not optimal, runtime performance. SOA is no different in this respect. Several service-orientation principles, such as Service Abstraction (696) and Service Loose Coupling (695), seem to demand this type of trade-off.

While some traditional optimization techniques may not be suitable for applications being shaped by service-orientation design principles and patterns, there are newer, more effective techniques that have emerged. These techniques, combined with the modern technology advances offered by .NET, WCF, and Windows Azure, can address service-oriented performance concerns head-on.

. 19.1 Overview While perf .NET barcode 128a ormance is only one aspect of service architecture, it is something that can be planned for up front, as part of service-oriented design processes. This is important because guessing where in your service composition architecture performance should, or could, be improved is not a recommended practice.

To know where your efforts should be focused, you need to make sure that you know what is expected of your service. For example: How fast must the service respond How much traffic is the service expected to handle What kind of hardware does the service need to run on How many servers can be used to host service deployments If your testing finds that your services do not perform as expected, you must start asking why. This chapter provides several techniques for answering these questions as well as design strategies for overcoming performance challenges with services and service compositions.

Before we can explore these techniques and strategies, we need to establish an understanding of what areas of technology architecture they can be applied to.. 19.1 Overview Optimizati code 128c for .NET on Areas Performance within a service is about the average time it takes to process service capabilities. This primarily relates to the scope of a service architecture.

Performance outside the service architecture (or performance between services) is about the average time required for services to communicate with each other. This relates both to the service composition architecture, as well as the surrounding service inventory architecture. For the purpose of this chapter, we ll group these performance optimization areas as follows: service implementation processing service framework processing wire transmission processing Figure 19.

1 illustrates these categories and breaks them down further..
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