Book Description
Enterprise JavaBean 3.1 - Build real world EJB solutions with a collection of simple but incredibly effective recipes with this book and eBook
- Build real world solutions and address many common tasks found in the development of EJB applications
- Manage transactions and secure your EJB applications
- Master EJB Web Services
- Part of Packt's Cookbook series: Comprehensive step-by-step recipes illustrate the use of Java to incorporate EJB 3.1 technologies
In Detail
Enterprise Java Beans enable rapid and simplified development of secure and portable applications based on Java technology.Creating and using EJBs can be challenging and rewarding. Among the challenges are learning the EJB technology itself, learning how to use the development environment you have chosen for EJB development, and the testing of the EJBs.
This EJB 3.1 Cookbook addresses all these challenges and covers new 3.1 features, along with explanations of useful retained features from earlier versions. It brings the reader quickly up to speed on how to use EJB 3.1 techniques through the use of step-by-step examples without the need to use multiple incompatible resources. The coverage is concise and to the point, and is organized to allow you to quickly find and learn those features of interest to you.
The book starts with coverage of EJB clients. The reader can choose the chapters and recipes which best address his or her specific needs. The newer EJB technologies presented include singleton beans which support application wide needs and interceptors to permit processing before and after a target method is invoked. Asynchronous invocation of methods and enhancements to the timer service are also covered.
The EJB 3.1 CookBook is a very straightforward and rewarding source of techniques supporting Java EE applications.
Table of Contents
- EJB 3.1 Cookbook
- EJB 3.1 Cookbook
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Getting Started With EJBs
- Introduction
- Creating a simple session EJB
- Accessing a session bean using dependency injection
- Accessing the session bean using JNDI
- Creating a simple message-driven bean
- Sending a message to a message-driven bean
- Accessing an EJB from a web service (JAX-WS)
- Accessing an EJB from a web service (JAX-RS)
- Accessing an EJB from an Applet
- Accessing an EJB from JSP
- Calling an EJB from JSF
- Accessing an EJB from a Java Application using JNDI
- Accessing an EJB from a Java Application using an embeddable container
- Accessing the EJB container
- 2. Session Beans
- Introduction
- Creating a stateless session bean
- Creating a stateful session bean
- Creating a singleton bean
- Using multiple singleton beans
- Using container managed concurrency
- Using bean managed concurrency
- Controlling the initialization process
- Using session beans with more than one business interface
- Understanding parameter behavior and granularity
- Using an asynchronous method to create a background process
- 3. Message-Driven Beans
- Introduction
- Handling a string-based message
- Handling a byte-based message
- Handling a stream-based message
- Handling a map-based message
- Handling an object-based message
- Using an MDB in a point-to-point application
- Using MDB in a publish-and-subscribe application
- Specifying which types of message to receive using the message selector
- Browsing messages in a message queue
- 4. EJB Persistence
- Introduction
- Creating an entity
- Creating an entity facade
- Using the EntityManager
- Controlling the Object-Relationship Mapping (ORM) process
- Using embeddable classes in entities
- Using application-managed persistence
- Validating persistent fields and properties
- Validating null fields
- Validating string fields
- Validating temporal fields
- Validating using regular expressions
- Validating Boolean fields
- Validating Integer fields
- Using the Validator class
- 5. Querying Entities using JPQL and the Criteria API
- 6. Transaction Processing
- Introduction
- Creating the Demonstration classes
- Handling transactions the easy way
- Using the SessionSynchronization interface with session beans
- Understanding how the TransactionAttributeType affects transactions
- Handling transactions manually
- Rolling back a transaction
- Handling errors in a transaction
- Using timeouts with transactions
- 7. EJB Security
- 8. Interceptors
- Introduction
- Creating the Registration Application
- Defining and using interceptors
- Using the InvocationContext to verify parameters
- Using interceptors to enforce security
- Using interceptors to handle transactions
- Using interceptors to handle application statistics
- Using lifecycle methods in interceptors
- 9. Timer Services
- Introduction
- Setting up the ReportsApplication
- Creating and using declarative timers
- Creating and using programmatic timers
- Understanding calendar-based scheduling
- Using the timer interface
- Using persistent and non-persistent timers
- Creating timers upon application deployment
- Using interceptors with timers
- 10. Web Services
- 11. Packaging the EJB
- Introduction
- Understanding an application's JAR files using the jar command
- Understanding class loading
- Using deployment descriptors for interceptors
- Using deployment descriptors for timer interceptors
- Using deployment descriptor for default interceptors
- Using deployment descriptors for callback interceptors
- Using a deployment descriptors for transactions
- Using deployment descriptors for security
- 12. EJB Techniques