Design and implement Servlets, JSPs, and EJBs for IBM by Joaquin Picon; et al

By Joaquin Picon; et al

This IBM redbook presents layout directions for constructing e-business functions in accordance with servlets, JavaServer Pages (JSP) and firm JavaBean (EJB) applied sciences. the tips are according to WebSphere software Server complex variation. The redbook describes the options of workload balancing by utilizing a community dispatcher and clones of the applying Server. The redbook proposes a layout of net functions according to layout styles, resembling the model-view-controller paradigm and the command framework. during this context, using firm beans, together with entry beans, institutions, and collections is explored intimately, and a collection of EJB-based layout styles is defined. half 1, "Choosing acceptable internet technollogies" presents guidance on easy methods to layout particular elements of an software. It additionally explains why and whilst a dressmaker should still flow company common sense from JavaBeans to a extra robust know-how like firm JavaBeans. half 2, "Design styles and instructions" is a suite of layout styles for construction e-business functions. Readers can use the knowledge at once from a bankruptcy and follow it of their personal designs

Show description

Read or Download Design and implement Servlets, JSPs, and EJBs for IBM WebSphere Application Server PDF

Similar java books

OSGi in Action: Creating Modular Applications in Java

What is OSGi? easily placed, OSGi is a standardized expertise that enables builders to create the hugely modular Java functions which are required for firm improvement. OSGi allows you to set up, commence, cease, replace, or uninstall elements with out taking down all your procedure. The curiosity in OSGi dependent functions has exploded considering the fact that significant proprietors like solar, Spring, Oracle, BEA, and IBM have got at the back of the standard.

OSGi in motion is a accomplished consultant to OSGi with basic objectives. First, it presents a transparent creation to OSGi techniques with examples which are suitable either for architects and builders. Then, it explores a number of sensible eventualities and methods, answering questions like: How a lot of OSGi do you really want? How do you embed OSGi within different bins? What are the easiest practices for relocating legacy structures to OSGi?

buy of the print e-book comes with a suggestion of a unfastened PDF, ePub, and Kindle e-book from Manning. additionally to be had is all code from the book.

Java Soa Cookbook

Java SOA Cookbook deals useful options and suggestion to programmers charged with imposing a service-oriented structure (SOA) of their association. rather than delivering one other conceptual, high-level view of SOA, this cookbook exhibits you ways to make SOA paintings. It's packed with Java and XML code you could insert at once into your functions and recipes you could observe correct away.

The booklet focuses totally on using loose and open resource Java net providers applied sciences -- together with Java SE 6 and Java EE five instruments -- yet you'll locate information for utilizing commercially on hand instruments as well.

Java SOA Cookbook can help you:

* build XML vocabularies and information versions applicable to SOA functions
* construct real-world net providers utilizing the newest Java criteria, together with JAX-WS 2. 1 and JAX-RS 1. zero for RESTful internet companies
* combine functions from renowned carrier companies utilizing cleaning soap, POX, and Atom
* Create provider orchestrations with entire insurance of the WS-BPEL (Business technique Execution Language) 2. zero common
* increase the reliability of SOAP-based companies with standards similar to WS-Reliable Messaging
* take care of governance, interoperability, and quality-of-service concerns

The recipes in Java SOA Cookbook will equip you with the information you must technique SOA as an integration problem, now not an obstacle.


This publication builds at the profitable process of the 1st version of Swing, once more taking the facility and adaptability of Java's Swing library to its limits. utilizing a fast paced type, it begins by way of introducing all of the Swing parts and maintains with production-quality code examples within which Swing good points are personalized, mixed, and vigorously exercised to illustrate real-world utilization.

The Definitive Guide to Spring Web Flow

Spring internet circulate is an exhilarating open-source framework for constructing Java internet functions. The framework improves productiveness through addressing 3 significant pain–points dealing with net program builders: person interface navigation regulate, kingdom administration, and modularity. The Definitive consultant to Spring net circulation covers Spring internet movement intimately by means of explaining its motivation and have set, in addition to offering useful information for utilizing the framework to improve internet functions effectively in a few environments.

Extra resources for Design and implement Servlets, JSPs, and EJBs for IBM WebSphere Application Server

Example text

There is no perfect answer to the trade-off between good interface design and a reduced communication overhead. Our proposal is, that the requesting tier (the servlet) of a communication has to design the commands exactly to support its tasks. The idea is, that a servlet should only execute one command per invocation which encapsulates all of the controller function except for the HTTP request parsing. That means when implementing an e-business application, the servlet only interprets the HTTP request and executes commands.

We define a stateless entity bean as an entity bean conforming to the EJB specification, but without having any persistent attributes. Even the primary key is not persistent. Object o) { if (! EntityContext entityContext = null; public int dummy = 0; // All EJB specific methods must be defined ... 1 rules for * exception handling. If your business logic * throws a CommandException and wants to cause * the transaction to rollback, it must call * setRollbackOnly() on the bean's EJB context * before throwing the exception.

1 Commands A good way to solve the above problems and a good way to separate the program logic is by the use of commands. Commands encapsulate business logic tasks and provide a standard way to invoke the business logic request and access to data using a single round-trip message. A command is a stylized Java class with the following characteristics: • A command object corresponds to a specific business logic task, such as a query or an update task. • A command has a simple, uniform usage pattern.

Download PDF sample

Rated 4.27 of 5 – based on 10 votes