Management of SOA Composite Applications

Developers typically create composite applications or simply composites that are packaged into single, deployable JAR files. These applications can contain any number of service components that include BPEL or BPMN processes, Mediator services, human tasks and workflows, and business rules. Composites include logic and code that form the foundation of SOA-based integrations. Though the design and development of composites are not the ultimate responsibility of the Oracle SOA Suite 11g administrator, the deployment, monitoring, and management of them are.

In this article, the authors Ahmed Aboulnaga and Arun Pareek of the book Oracle SOA Suite 11g Administrator's Handbook will discuss the concepts that enable you to manage these composites, and cover the following areas in more detail:

• Managing composite lifecycles
• Structuring composite deployments with partitions
• Setting up ant for automated composite build management
• Promoting code, using configuration plans
• Understanding and configuring composite audit levels

Introduction to Logging in Tomcat 7

Logging services play a vital role in the life of the administrator and developer to manage the application from the phase of development to production issues. It's the logging services that help you to find the actual problem in the web application. Also, it plays an essential role in performance tuning for many applications.

In this artice by Tanuj Khare, author of Apache Tomcat 7 Essentials, we will look at the logging features in Apache Tomcat 7. We will cover the following topics:

• Logging services in Tomcat 7
• JULI
• Log4j
• Log level
• Valve component
• Analysis of logs

Creating a Basic Vaadin Project

Vaadin is a new Java web framework for making applications look great and perform well, making your users happy. Vaadin promises to make your user interfaces attractive and usable while easing your development efforts and boosting your productivity.

In this article by Nicolas Frankel, author of Learning Vaadin, we will:

• Learn key concepts behind the Vaadin framework
• Have an overview of its internal architecture
• See how to deploy a Vaadin application to a servlet container, be it in an IDE or outside it
• See how to update the previously developed application with a very simple interaction in order to display "Hello Vaadin!"

Android User Interface Development: Validating and Handling Input Data

Android provides an excellent toolset to capture many different types of data from the user, while also providing loose coupling between your application components in the form of Intent structures. By using several smaller Activity classes to capture data, while at the same time abstracting the functionality to capture different types of input, you'll be able to more easily reuse the input capturing Activity classes, not just within the application, but in other applications as well. Further, by registering the Activity correctly, you'll allow other applications to override, or make use of your Activity implementation, allowing the users to select their preferred capturing mechanism.

This article by Jason Morris, author of Android User Interface Development: Beginner's Guide, provides tips regarding taking input from a user, and how to keep this experience as painless as possible. This article investigates the different input widgets Android provides and how to configure them best, depending on the situation. Also, when everything else fails, how best to inform your users that what they are doing is wrong.