Amazon.com Review
This title concentrates on the "Enterprise Edition" of Java 2, meaning that "core" features are left out. Instead, the team authors focus on two major areas of Java on the enterprise: servlets (including JavaServer Pages, or JSPs) and Enterprise JavaBeans (EJBs). This text is really two books in one, as both topics get full treatment, from basic features to design goals, required APIs, and the evolution of relevant J2EE standards.
XML is used extensively in J2EE for deployment and configuration, and this book provides XML DTDs (for understanding the tags used to defined particular options) and sample XML files for various aspects of deployment. A highlight here is a DTD for defining JSPs using XML--clearly a promising idea that will add great flexibility to JSP-based Web applications.
Excellent diagrams explain the architecture behind servlets and EJBs. One standout section provides "object interaction" diagrams for EJBs--diagrams that show the life cycle and operation of these components. This material will be useful to anyone who really wants to understand how EJBs work, and it will help readers solve problems running JavaBeans in the real world. Like being an expert on CORBA or COM+, knowing the inner workings of servlets and EJBs will pay off--even if you don't need to write your own application server.
Aimed at the more advanced Java developer, Java 2 Platform, Enterprise Edition delivers an authoritative and detailed guide to what it takes to build an EJB or servlet platform. Read it if you are planning to design such software, or if you want to understand the inner workings of today's powerful J2EE platform. --Richard Dragan
Topics covered:
- Overview of the Java 2 Enterprise Edition (J2EE) platform
- Required APIs and specifications
- Security issues
- The Java Naming and Directory Interface (JNDI)
- Servlet basics
- J2EE features and APIs
- JavaServer Pages (JSPs): elements, directives and syntax
- Using XML to define JSPs
- Overview of Enterprise Java Beans (EJBs)
- Specifications for EJB application server vendors
- Session and entity beans, bean-managed and container-managed persistence, bean passivation and activation, and EJB deployment with XML
- Transactions, security, and object-interaction diagrams
- Responsibilities for component builders, application-server vendors, deployers, and administrators
- Revision history and future directions for the J2EE standard
Product Description
Java 2 Platform, Enterprise Edition Specification, version 1.2 This specification defines the initial release of the J2EE platform. It discusses application architecture using Java Servlets, JavaServer Pages(TM), Enterprise JavaBeans, and other technologies. It specifies application access to services such as JDBC(TM), Java Transaction API, JavaMail(TM), CORBA connectivity, and others. It also discusses J2EE policies regarding application deployment and security. Enterprise JavaBeans Specification, version 1.1 Enterprise JavaBeans technology provides the standard middle-tier components in the J2EE model. This technology provides simplified support for transaction management and remote object access, and it frees enterprise developers to focus on the business logic of their applications. Version 1.1 of the specification includes a number of enhancements, including mandatory entity beans and XML deployment descriptors. Java Servlet Specification, version 2.2 Java Servlets technology defines a standard for developing server-side behaviors in web applications based on the Java programming language. As part of the J2EE specifications, servlets technology supports development of dynamic web content for e-commerce and other enterprise applications.
JavaServer Pages Specification, version 1.2 The JavaServer Pages (JSP) technology simplifies the development and deployment of interactive web applications. Using an extensible markup language based on HTML and the Java programming language, JSP defines a server-side mechanism to allow content experts greater freedom in creating and displaying dynamic web content.
Developed with the input of a wide range of industry experts, these specifications define a new standard for resolving many complex issues related to developing, deploying, and managing multi-tier enterprise applications.
