Contents Explicit Middleware 33 Implicit Middleware 34 What (Top web site)
Contents Explicit Middleware 33 Implicit Middleware 34 What Constitutes an Enterprise Bean? 36 The Enterprise Bean Class 36 The EJB Object 37 The Home Object 42 The Local Interfaces 44 Deployment Descriptors 48 Vendor-Specific Files 49 Ejb-jar File 49 Summary of Terms 50 Summary 52 Chapter 3 Writing Your First Bean 53 How to Develop an EJB Component 54 The Remote Interface 55 The Local Interface 56 The Home Interface 57 The Local Home Interface 59 The Bean Class 61 The Deployment Descriptor 64 The Vendor-Specific Files 65 The Ejb-jar File 65 Deploying the Bean 66 The Optional EJB Client JAR File 67 Understanding How to Call Beans 68 Looking up a Home Object 68 Running the System 72 The Server-Side Output 73 The Client-Side Output 73 Implementing Component Interfaces 73 A Solution 74 Summary 75 Part Two The Triad of Beans 77 Chapter 4 Introduction to Session Beans 79 Session Bean Lifetime 79 Session Bean Subtypes 80 Stateful Session Beans 80 Stateless Session Beans 81 Special Characteristics of Stateful Session Beans 83 Achieving the Effect of Pooling with Stateful Beans 83 The Rules Governing Conversational State 84 Activation and Passivation Callbacks 85 Method Implementation Summary 88 A Simple Stateful Session Bean 88 Life Cycle Diagrams for Session Beans 98 Summary 102
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