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access control 230 accessing EJBs from a servlet 8 AccountAccessBean 240 AccountBean 249 ACID 165 adding a home method to generated home interfaces 68 adding entity relation XML to the deployment descriptor 70 71, 73 adding log messages 249 AddressBean 98 afterBegin 179 180, 183 afterCompletion 180, 184 Ant 274, 278 automating tests 294 building stubs 283 building the ejb.jar 280 compiling EJB source 278 properties 56 properties with XDoclet 57 setting up for build 278 with Cactus 294 See also build.xml Apache Ant 274 Cactus 275 appenders html 261 JDBC 257 JMS 258 rolling file 260 XML 259 Applet 27 <arg> 286 assert 287, 289 assertEquals 289 assertFalse 289 assertNotNull 289 assertNotSame 289 assertNull 289 assertSame 289 assertTrue 289 assigning a role to an EJB 238 assigning and determining EJB client security roles 232 AsynchBean 156 asynchronous business logic 202 asynchronous email 223 asynchronous processes 151 without message-driven bean 156 asynchronous timer 145 AsyncProcessBean 151 atomic 165 attempting error recovery to avoid a rollback 172 authentication 230 AuthenticationException 242 authorization 230 automate development 34 <automatic-key-generation> 91 automating test cases 274 execution 294 automation, building EJB stubs 283 avoiding a rollback 172 in a BMT bean 173 in a CMT bean 173 avoiding hard-coded XDoclet tag values 56

Entity locking Performance improvement of JPA entities Tuning of session beans and MDB performance EJB clustering

When it comes to building software systems, it s the end that matters not the means Working, reliable software that is usable is what it all boils down to In the end, what customers care about is that your product produces consistent results, performs well, and meets scalability and availability requirements Most developers and users can agree on that But then there s the part they can t always agree on the part that s implied and expected by the users, but not always understood by the developers Surely you ve seen it before You just finish plopping your latest new-fangled application into production and the e-mails start flying and the calls come rolling in It turns out that the users had some other expectations as well Something about how they expected the program to perform.

batch processes 159 BatchProcessBean 160 bean adapter 139 bean-managed transactions 166, 169 beforeCompletion 179 180, 183 BETWEEN 221 binary data messages 210 BMP switching to CMP 81 BMT 170 BookJMSQueue 208 build.properties 278, 283 build.xml 35 38, 40, 44, 49, 62, 64, 66 68 for building ejb.jar 281 for generating deployment descriptor 46 for generating interfaces 40 for XDoclet 36 generating EJB interfaces 41 generating stubs 284 generating utility objects 59 generating XML 45 using Ant properties 57 58 building 278 EJB stubs 283 ejb.jar file 280 building Enterprise JavaBean stub classes 283 business logic insulation 209 BusinessDataAccessObject 189 BusinessLogicBean 209 BytesMessage 211, 213

autowire="constructor" class= "org.springframework.transaction.interceptor.TransactionAttributeSourceAdvisor"> <property name="order"><value>1</value></property> </bean>

Sure, the application has the features they asked for, and everything appeared to work during user acceptance testing (UAT), but now that it s in production everything s so slow Can anything be done In the final assessment, how well your applications perform is important Users have expectations for performance, even when they don t articulate or just don t communicate them well In most application development projects, performance goals are ignored during development While making something work is the first step development should take, some attention must also be paid to performance concerns during development, to avoid the potential rework that will occur if they are completely ignored until the system is deployed According to some surveys,1,2 around half of software development projects fail to deliver their performance objectives Up to this point we have focused on how to build EJB applications.

However, you also need to consider the performance aspects of your application in order to effectively build, configure, and deploy your applications In this chapter you ll learn about general performance tuning of all the EJB 3 components and issues surrounding scalability and availability for EJB 3 applications We ll start by looking at how to handle entity locking You may remember from our discussion in chapter 6 that consistency is a critical aspect of transactional applications and improper locking mechanisms not only lead to inconsistent data but also may cause performance degradation An athlete makes sure that he runs within his track before running faster; otherwise he ll be disqualified..

Cactus automating tests 294 building test cases 286 introduction 275 jar files 276 servlets 276 testing entity beans 292 unit test for a stateful bean 290 unit test for session bean 286 with a UI 298 cactus.jar 276 cactus.properties 297 CallableStatement 111 <cascade-delete > 106 cascading deletes 104 CDATA 220 221 centralize logging 263 change the level of your loggers 254 change the way you write messages 255 change your conversion patterns 255 class files packaging 280 client 210 applet 27 assigning security role 232 categories 4 credentials 234 EJBs finding identity 231 JMS 15 JSP 12 other EJBs 4 remote EJB 6 servlets 8 sorting log messages 269 starting asynchronous processes 151 starting transactions 190 streaming 210 using large result sets 126 Client.java 206 using reflection 25 ClientLoader 20 ClientSaver 18 cluster, centralize logging 263

According to the Wily Tech 2003 Survey of Java Applications, 60 percent fail to meet performance expectations (http://www.wilytech.com/news/releases/031120.html). Forrester (2004) reports that 66 percent of the time, developers find out about performance problems from support calls.