rdlc data matrix

rdlc data matrix

rdlc data matrix

rdlc data matrix

rdlc data matrix

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DisTransAC aspect, 83 GuiAC aspect, 82 HibernateAC aspect, 83 IntegrityAC aspect, 84 LoadBalancingAC aspect, 84 PersistenceAC aspect, 83 SessionAC aspect, 83 SynchronizationAC aspect, 85 TransactionAC aspect, 83 UserAC aspect, 83 Jac class, 88 JAC Naming Repository object naming, 87 JAC, AOP Alliance framework, 64 jac.acs property, 78 jac.comp.wrappingOrder property, 78 jac.topology property, 78 Java Aspect Components see JAC Java class definition, Spring AOP, 114 Java contracts, 174 java files (.java files) compiling JAC application, 66 Java Management Extensions see JMX Javassist (Java Programming Assistant), 14 JBoss AOP 91 112 , advice code blocks, 111 annotations, 105 108, 110 111 aspect-oriented application using, 91 94 aspects aspect instantiation, 109 introduction to, 91 compiling JBoss AOP application, 93 94 configuring aspect classes with parameters, 109 110 dynamic AOP 108 , implementing contracts with AOP 174 , implementing Singleton pattern, 151 154 interceptors, 92, 100 103 licensing, 91 mix-in mechanism, 103 105, 110 111 pointcuts, 92, 95 99 running JBoss AOP application, 95 summary, 111 web site, 91 jboss-aop.xml file aspect classes, JBoss AOP interceptors, 102 compiling JBoss AOP application, 93 configuring aspect classes with parameters, 110 defining JBoss AOP pointcuts, 95 files defining JBoss AOP aspect, 91 general structure of, 95 introducing annotations into application, 110

The value of the name parameter in @Resource (or res-ref-name) is translated to a fully qualified JNDI mapping in the form java:comp/env/[value of the name parameter] (see the accompanying sidebar). In our example, the complete JNDI path for the resource will be java:comp/env/jdbc/actionBazaarDB. If you don t specify the name element in the @Resource annotation, the JNDI name for the resource will be of the form java:comp/env/ [bean class name including package]/ [name of the annotated field/property]. If we didn t specify the name element in the @Resource annotation, the container would use java:comp/env/actionbazaar.buslogic.PlaceBidBean/dataSource as the JNDI name.

<% UserTransaction transaction = (UserTransaction) myJNDIContext.lookup( "java:comp/env/UserTransaction" ); Session.setAttribute("CURRENT_TRANSACTION", transaction ); transaction.begin(); //do some work with EJBs %>

If you know how JNDI references worked in EJB 2, you re familiar with the environment naming context (ENC). ENC allows portability of the application without having to depend on global JNDI names. Global JNDI names for resources differ between application server implementations, and ENC allows you to use a JNDI location that starts with java:comp/env/ instead of hard-coding the actual global JNDI name. EJB 3 essentially assumes that all JNDI names used in code are local references and automatically prepends names with the java: comp/env/ prefix.

This automatic interpretation of EJB 3 JNDI names into local references is a nice alternative to mentioning the local ENC (java:comp/env) prefix over and over again. However, this convenience does come at a price. Since you cannot use global names with the name parameter, you have to make sure that you perform the mapping between the ENC and global JNDI names in all cases. Fortunately, many application servers will automatically resolve the ENC name to the global JNDI name if a resource with the same global JNDI name exists. For example, if you are using the Sun GlassFish or Oracle Application Server and you define a data source as shown here, the application server will automatically map the data source to the global JNDI resource bound to jdbc/ActionBazaarDS, even if you didn t explicitly map the resource:

mix-in mechanism, JBoss AOP 103 , JDBC abstraction layer, Spring AOP, 119 JMX (Java Management Extensions), 192 202 agent layer 192, 193 architecture layers, 192 distributed services layer, 192, 193 instrumentation layer, 192, 193 using JMX with AOP 194 202 , creating manageable resource with an aspect, 197 202 extending manageable resource with an aspect, 202 Johnson, Rod, 113 JoinPoint interface joinpoint introspection, JAC, 74 JoinPoint interface, org.aspectj.lang methods, 34 joinpoint introspection AspectJ, 33 35 comparing AOP tools, 143 JAC, 73 JBoss AOP 101 102 , joinpoint shadow, 15 joinpoints, 14 15 AOP summary, 21 comparing AOP tools, 140 definition, 14 granularity, 15 types of, 15 joinpoints, AspectJ call joinpoint, 27 defining joinpoints, 36 40 filtering operators, 38 40 control-flow filtering, 40 joinpoint introspection, 33 35 program listing, 35 thisJoinPoint keyword, 34 joinpoint types, 36 38 adviceexecution type, 38 exceptions, 37 fields, 36 handler type, 37 initialization type, 37 preinitialization type, 37 static code blocks, 37 staticinitialization type, 38 joinpoints, JAC creating JAC wrapper, 64 exception handler, 68 execution order of aspects, 86 joinpoint introspection, 73 pointcut expressions, 68 wrapper chains, 74 Wrapper class, 68 joinpoints, JBoss AOP

To retrieve the transaction, use this code:

@Resource(name="jdbc/ActionBazaarDS") private javax.jdbc.DataSource myDB;