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Real World Java EE PatternRethinking Best Practices discusses efficient patterns and best practices in a structured way, with code from real world projects. The rewritten and re-edited version of this book covers: An introduction to the core principles and APIs of Java EE 6 (EJB, JPA, JMS, JCA, JTA, Dependency Injection, Convention Over Configuration, Interceptors, REST) Principles of transactions, isolation levels, and remoting in the context of Java EE 6 Pragmatic modularization and structure of Java EE applications Mapping of the Core J2EE patterns into Java EE Superfluous patterns and outdated best practices such as DAOs, interfaces, DTOs, service locators, extensive layering, indirections, and so on Patterns for domain-driven and service-oriented components Patterns for integration of legacy resources Utilities such as custom scopes, parallelizers, real time HTTP events, schedulers, REST optimizations, plugins, and monitoring tools Lean and pragmatic service- and domain-driven architectures, based on the discussed patterns Fully functional Java Connector Architecture (JCA) 1.6 implementation with source code Real World Java EE PatternRethinking Best Practices will not only help even experienced developers and architects to write concise code, but it will especially help developers shrink the codebase to unbelievably small sizes.