rpaf KTl enterprise EJB 3.1 Cookbook I I flv* IV I I professional expertise distilled

Transcription

1 EJB 3.1 Cookbook Build real world EJB solutions with a collection of simple but incredibly effective recipes Richard M. Reese rpaf KTl enterprise I I flv* IV I I professional expertise distilled PUBLISHING - BIRMINGHAM MUMBAI

2 Preface 1 Chapter 1: Getting Started With EJBs 7 Introduction 8 Creating a simple session EJB 9 Accessing a session bean using dependency injection 11 Accessing the session bean using JNDI 14 Creating a simple message-driven bean 17 Sending a message to a message-driven bean 20 Accessing an EJB from a web service (JAX-WS) 23 Accessing an EJB from a web service (JAX-RS) 27 Accessing an EJB from an Applet 30 Accessing an EJB from JSP 35 Calling an EJB from JSF 38 Accessing an EJB from a Java Application using JNDI 40 Accessing an EJB from a Java Application using an embeddable container 42 Accessing the EJB container 44 Chapter 2: Session Beans 47 Introduction 47 Creating a stateless session bean 50 Creating a stateful session bean 54 Creating a singleton bean 58 Using multiple singleton beans 61 Using container managed concurrency 64 Using bean managed concurrency 67 Controlling the initialization process 70 Using session beans with more than one business interface 72 Understanding parameter behavior and granularity 76 Using an asynchronous method to create a background process 81

3 Chapter 3: Message-Driven Beans 85 Introduction 85 Handling a string-based message 90 Handling a byte-based message 94 Handling a stream-based message 97 Handling a map-based message 101 Handling an object-based message 105 Using an MDB in a point-to-point application 109 Using MDB in a publish-and-subscribe application 113 Specifying which types of message to receive using the message selector 118 Browsing messages in a message queue 122 Chapter 4: EJB Persistence 125 Introduction 126 Creating an entity 127 Creating an entity facade 130 Using the EntityManager 133 Controlling the Object-Relationship Mapping (ORM) process 136 Using embeddable classes in entities 139 Using application-managed persistence 141 Validating persistent fields and properties 145 Validating null fields 149 Validating string fields 150 Validating temporal fields 151 Validating using regular expressions 153 Validating Boolean fields 154 Validating Integer fields 155 Using the Validator class 156 Chapter 5: Querying Entities using JPQL and the Criteria API 159 Introduction 159 Populating the Patient and Medication tables 161 Using the Select query 169 Using the Where clause 174 Controlling the number of entities returned by a Select query 180 Using the Delete query 183 Using the Update query 185 Using parameters In a query 187 Using a Named query 190 Using the Criteria API 193 -QD

4 Chapter 6: Transaction Processing 197 Introduction 197 Creating the Demonstration classes 199 Handling transactions the easy way 203 Using the SessionSynchronization interface with session beans 207 Understanding how the TransactionAttributeType affects transactions 210 Handling transactions manually 216 Rolling back a transaction 222 Handling errors in a transaction 226 Using timeouts with transactions 229 Chapter 7: EJB Security 233 Introduction 233 Creating the SecurityApplication 235 Configuring the server to handle security 240 Understanding and declaring roles 246 Controlling security using declarations 248 Propagating identity 252 Controlling security programmatically 255 Chapter 8: Interceptors 261 Introduction 261 Creating the Registration Application 263 Defining and using interceptors 267 Using the InvocationContext to verify parameters 274 Using interceptors to enforce security 278 Using interceptors to handle transactions 281 Using interceptors to handle application statistics 284 Using lifecycle methods in interceptors 291 Chapter 9: Timer Services 295 Introduction 295 Setting up the ReportsApplication 297 Creating and using declarative timers 299 Creating and using programmatic timers 303 Understanding calendar-based scheduling 309 Using the timer interface 315 Using persistent and non-persistent timers 319 Creating timers upon application deployment 320 Using interceptors with timers 323 {ht}-

5 Chapter 10: Web Services 327 Introduction 327 Creating an EJB-based web service using JAX-WS 328 Creating an EJB-based web service using JAX-RS 334 Using an MDB as part of a web service 340 Chapter 11: Packaging the EJB 345 Introduction 345 Understanding an application's JAR files using the jar command 347 Understanding class loading 351 Using deployment descriptors for interceptors 354 Using deployment descriptors for timer interceptors 359 Using deployment descriptors for default interceptors 361 Using deployment descriptors for callbacks interceptors 363 Using a deployment descriptors for transactions 366 Using deployment descriptors for security 369 Chapter 12: EJB Techniques 373 Introduction 373 Exception handling and EJBs 375 Using logging within an EJB 380 Using an interceptor for logging and exception handling 386 Creating your own Interceptor 389 Using time within an EJB 392 How to support currency 395 Efficient manipulation of strings 400 Index 405 -{jv}