barcode font vb.net A stateful bean client in Java

Create Data Matrix 2d barcode in Java A stateful bean client

2.3.4 A stateful bean client
Data Matrix Printer In Java
Using Barcode printer for Java Control to generate, create Data Matrix ECC200 image in Java applications.
www.OnBarcode.com
Data Matrix 2d Barcode Decoder In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
It is clear that the PlaceOrder EJB is called from the ActionBazaar web tier. However, to give a slightly more colorful perspective on things, we ll deliberately stay out of web-tier client examples this time. We ll use a thick Java application that functions as a test script to run through the entire workflow of the PlaceOrder EJB using some dummy data. This test script could have just as easily been part of a very high-level regression test suite using a framework like JUnit or NUnit.
Painting Code 128 Code Set B In Java
Using Barcode generator for Java Control to generate, create ANSI/AIM Code 128 image in Java applications.
www.OnBarcode.com
Encoding Denso QR Bar Code In Java
Using Barcode printer for Java Control to generate, create Quick Response Code image in Java applications.
www.OnBarcode.com
NOTE
USS Code 39 Creator In Java
Using Barcode encoder for Java Control to generate, create Code 3/9 image in Java applications.
www.OnBarcode.com
Barcode Printer In Java
Using Barcode printer for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
If you have management buy-in to invest in extensive unit testing, you might also note the fact that because of the POJO-centric nature of EJB 3, our example application could be easily modified to a full-scale unit test using dummy data sources and the like. We ll leave this for you as an exercise in case you are interested in exploring further by tweaking the source code available for download from www.manning.com/ panda. If unit testing and code coverage are not viable topics to bring up in your work environment, don t worry; we don t assume you do a ton of unit testing.
Creating Barcode In Java
Using Barcode generation for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
Make EAN-8 Supplement 5 Add-On In Java
Using Barcode drawer for Java Control to generate, create EAN8 image in Java applications.
www.OnBarcode.com
Listing 2.4 shows the code for the stateful session bean client.
Data Matrix ECC200 Generator In Java
Using Barcode encoder for Java Control to generate, create Data Matrix ECC200 image in Java applications.
www.OnBarcode.com
Data Matrix ECC200 Encoder In Objective-C
Using Barcode generator for iPad Control to generate, create Data Matrix image in iPad applications.
www.OnBarcode.com
Listing 2.4 Stateful session bean client
1D Barcode Creation In VB.NET
Using Barcode encoder for VS .NET Control to generate, create Linear 1D Barcode image in .NET applications.
www.OnBarcode.com
Code128 Drawer In None
Using Barcode creation for Font Control to generate, create Code 128A image in Font applications.
www.OnBarcode.com
package ejb3inaction.example.buslogic; import javax.ejb.EJB;
Encode UPC Symbol In Objective-C
Using Barcode maker for iPhone Control to generate, create UPC-A Supplement 2 image in iPhone applications.
www.OnBarcode.com
Creating ECC200 In Visual Studio .NET
Using Barcode generator for .NET Control to generate, create Data Matrix image in Visual Studio .NET applications.
www.OnBarcode.com
Building business logic with session beans
GS1-128 Creation In None
Using Barcode drawer for Software Control to generate, create EAN / UCC - 13 image in Software applications.
www.OnBarcode.com
Barcode Creator In VB.NET
Using Barcode drawer for VS .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
public class PlaceOrderTestClient { Injects an instance of EJB @EJB private static PlaceOrder placeOrder; public static void main(String [] args) throws Exception { System.out.println("Exercising PlaceOrder EJB..."); placeOrder.setBidderId(new Long(100)); placeOrder.addItem(new Long(200)); placeOrder.addItem(new Long(201)); placeOrder.setShippingInfo( new ShippingInfo("123 My Sweet Home", "MyCity","MyState")); placeOrder.setBillingInfo( new BillingInfo("123456789","VISA","0708")); Long orderId = placeOrder.confirmOrder(); System.out.println("Order confirmation number: " + orderId); } }
Print GTIN - 13 In None
Using Barcode creation for Font Control to generate, create EAN-13 image in Font applications.
www.OnBarcode.com
Universal Product Code Version A Creation In .NET Framework
Using Barcode printer for Reporting Service Control to generate, create UPC Code image in Reporting Service applications.
www.OnBarcode.com
There is nothing special you need to do from the client side to use stateful beans. As a matter of fact, there is virtually no difference in the client code between using a stateless and a stateful bean, other than the fact that the client can safely assume that the EJB is maintaining state even if it is sitting on a remote application server. The other remarkable thing to note about listing 2.4 is the fact that the @EJB annotation is injecting a remote EJB into a standalone client. This is accomplished by running the client in the application client container (ACC).
Encode Barcode In VS .NET
Using Barcode creator for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
EAN-13 Supplement 5 Decoder In .NET Framework
Using Barcode scanner for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
NOTE
The application client container is a mini Java EE container that can be run from the command line. Think of it as a souped-up Java Virtual Machine (JVM) with some Java EE juice added. You can run any Java SE client such as a Swing application inside the ACC as if you were using a regular old JVM. The beauty of it is that the ACC will recognize and process most Java EE annotations such as the @EJB DI annotation. Among other things, the client container can look up and inject EJBs on remote servers, communicate with remote EJBs using RMI, provide authentication, perform authorization, and so forth. The application client really shines if you need to use EJBs in an SE application or would like to inject real resources into your POJO during unit testing.
Any Java class with a main method can be run inside the ACC. Typically, though, an application client is packaged in a JAR file that must contain a MainClass in the Manifest file. Optionally, the JAR may contain a deployment descriptor
A first taste of EJB
(application-client.xml) and a jndi.properties file that contains the environment properties for connecting to a remote EJB container. Let s assume you packaged up your application client classes in a JAR file named chapter2-client. jar. Using Sun Microsystems s GlassFish application server, you could launch your application client inside the ACC as follows:
appclient -client chapter2-client.jar
This finishes our brief introduction to session beans using our ActionBazaar scenario. We are now ready to move on to the next business-tier EJB component: message-driven beans.
Copyright © OnBarcode.com . All rights reserved.