barcode vb.net 2008 Design goals applied to an NHibernate application in C#

Creator Code 39 Extended in C# Design goals applied to an NHibernate application

Design goals applied to an NHibernate application
Code 3/9 Creator In C#
Using Barcode encoder for .NET framework Control to generate, create Code 3/9 image in .NET applications.
www.OnBarcode.com
Code 3/9 Reader In Visual C#
Using Barcode scanner for VS .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
An NHibernate application is a .NET application using NHibernate. But because of the central role played by NHibernate, you must take into consideration some implications when you re designing an NHibernate application. The MSDN defines six design goals: availability, reliability, manageability, securability, performance, and scalability. We look at each of them with NHibernate in mind.
Linear Barcode Encoder In Visual C#
Using Barcode maker for Visual Studio .NET Control to generate, create 1D Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Generate EAN 13 In C#
Using Barcode generation for .NET framework Control to generate, create UPC - 13 image in .NET applications.
www.OnBarcode.com
Achieving goals and solving problems
Code 128 Code Set B Maker In Visual C#.NET
Using Barcode encoder for .NET Control to generate, create Code 128 image in Visual Studio .NET applications.
www.OnBarcode.com
Drawing UPCA In Visual C#.NET
Using Barcode maker for .NET framework Control to generate, create UPC Symbol image in VS .NET applications.
www.OnBarcode.com
AVAILABILITY AND RELIABILITY
QR-Code Printer In Visual C#.NET
Using Barcode creator for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in .NET applications.
www.OnBarcode.com
Draw EAN - 14 In Visual C#
Using Barcode creator for .NET Control to generate, create ITF14 image in .NET framework applications.
www.OnBarcode.com
Availability and reliability relate to an application s ability to be present and ready for use. Basically, you should aim to make your application bug-free. NHibernate has an impact on the way your application is tested. Because it isn t intrusive, the business logic in your domain model and business layer can be fully tested outside NHibernate s scope. Note that you must still test the way you use NHibernate; see the section on performance and scalability. Extensive testing is the first recommendation to achieve the goal of availability and reliability. You should test the internals of your application and its interactions with the outside world. If your application interacts with external services, verify that a failure in one of these services won t cause your application to crash. Finally, if your application provides services to external systems, verify that they can t crash your application by sending invalid information or using your services in a specific way. The end user can be considered part of these external systems. The most common technique is to carefully validate all inputs you receive from these systems.
Scan USS Code 39 In Visual Basic .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Recognize USS Code 39 In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
MANAGEABILITY AND SECURABILITY
Paint Data Matrix In .NET Framework
Using Barcode generator for ASP.NET Control to generate, create Data Matrix 2d barcode image in ASP.NET applications.
www.OnBarcode.com
Drawing EAN128 In Visual Studio .NET
Using Barcode generator for .NET framework Control to generate, create GS1 128 image in Visual Studio .NET applications.
www.OnBarcode.com
Manageability and securability describe the application s ability to be administered and to protect its resources and its users. The purpose of manageability is to ease the (re)configuration and the maintenance of the application. NHibernate encourages the separation of concerns in your application (layered architecture), which increases its manageability. NHibernate is also configurable using XML files, thus allowing production-time changes. Security wasn t a major concern a few years ago, but it s gaining considerably more attention as systems become more open to the outside world. You should keep your connection string in a safe place (not plain text and not in an assembly); for example, you can keep it encrypted in Web.config. Our general advice is that you implement your application with security in mind and encourage the use of minimal privileges by default.
GTIN - 12 Decoder In Visual C#.NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
PDF417 Printer In Java
Using Barcode creation for BIRT Control to generate, create PDF417 image in Eclipse BIRT applications.
www.OnBarcode.com
PERFORMANCE AND SCALABILITY
Universal Product Code Version A Scanner In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Make GTIN - 12 In Java
Using Barcode drawer for Java Control to generate, create Universal Product Code version A image in Java applications.
www.OnBarcode.com
Performance is the measure of an application s operation under load. Developers tend to consider this goal the most important. It s also the most misunderstood (for example, it s commonly confused with scalability). NHibernate is a layer on top of ADO.NET; do some tests to make sure your application performs well, identify bottlenecks, and make sure NHibernate is efficiently used (lazy/eager fetching, caching, and so on). As a last resort, NHibernate lets you fall back to classic ADO.NET (the underlying connection is accessible through the ISession. Connection property); we aren t against stored procedures for batch processing. Note that NHibernate 1.2.0 is faster than hand-coded data access for classic operations on SQL Server because it uses an unexposed batching feature of the .NET framework. The next section gives you some tips that can help improve your application s performance. We think performance should be considered throughout a project, rather than leaving it until the end. Of course, we don t recommend you spend time
Data Matrix 2d Barcode Recognizer In Visual Basic .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
USS Code 128 Encoder In Java
Using Barcode drawer for Android Control to generate, create Code 128A image in Android applications.
www.OnBarcode.com
Developing NHibernate applications
Data Matrix 2d Barcode Creator In None
Using Barcode printer for Font Control to generate, create ECC200 image in Font applications.
www.OnBarcode.com
Making Barcode In None
Using Barcode encoder for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
prematurely optimizing your systems, but it always helps to at least have an understanding of the performance implications of the code you re writing. Scalability refers to an application s ability to match increasing demand with a proportional increase in resources and cost. You can use many techniques to achieve this goal, including asynchronous programming (wrapping expensive calls using asynchronous delegates). You should also use the ADO.NET connection pool (and maybe increase its size); in this case, avoid using a connection string per user. Another best practice is to open an NHibernate session as late as possible and to close it as soon as possible. You may also consider using a distributed cache (see section 6.3).
Copyright © OnBarcode.com . All rights reserved.