Hi guy, I start to be a bit confuse with the dependency injection. I really want to understand how this works. I try several thinkg and sometime it is working sometimes not. Basicaly I have an application (i.e. MM) which consists of a set of Message driven beans, beans, and entities that I want to used in another application (i.e. CMS) as a kind of sub-component. So I do include MM in CMS (the ejb-jar.xml, and persistence.xml file are used to "configurate" MM). For some reason MM need to know the application (e.g. CMS) that is using it so I used the ejb-jar.xml file and a <env-entry> specification in each of my message driven and other beans to specify this information. Each bean (message driven or others) in MM has a property (i.e. applicationName) annotated with @Resource and a get and set method to access it. It seems that the injection of the resource my approach is working only for message-driven bean but not the other beans and I do not understand why.
MM is deploy within CMS on JBOSS with a .ear file which as this structure: | CMS.EAR | |--META-INF | | |--application.xml | |--CMC.jar (message driven and persitence beans) | | |--META-INF | | |--ejb-jar.xml | |--CMejb.jar (entities classes) | | |--META-INF | | |--persistence.xml | |--MMejb.jar (MM message driven beans) | |--MSMejb.jar (MM entity classes and persistence beans) | |--CMSweb.war (CMS servlet...) | |--MMweb.war (MM Servlet ...) | the application.xml in CMS.ear is: | <application> | <display-name>CMS</display-name> | <module> | <ejb>lib/cmsconfiguratorclient.jar</ejb> | </module> | <module> | <ejb>CMC.jar</ejb> | </module> | <module> | <ejb>CMejb.jar</ejb> | </module> | <module> | <web> | <web-uri>CMSweb.war</web-uri> | <context-root>CARDWeb</context-root> | </web> | </module> | | <!-- MM --> | | <module> | <ejb>MMweb.war</ejb> | </module> | <module> | <ejb>MMejb.jar</ejb> | </module> | <module> | <ejb>MSMejb.jar</ejb> | </module> | | </application> | the ejb-jar.xml in CMC is | <?xml version="1.0" encoding="UTF-8"?> | <ejb-jar version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"; | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; | xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd";> | | <display-name>CMS</display-name> | <enterprise-beans> | | <message-driven > | <display-name>MessagerReceiver</display-name> | <ejb-name>MessageReceiver</ejb-name> | <ejb-class>com.messaging.messagemanager.receiving.MessageReceiver</ejb-class> | <transaction-type>Container</transaction-type> | <activation-config> | <activation-config-property> | <activation-config-property-name>destinationType</activation-config-property-name> | <activation-config-property-value>javax.jms.Queue</activation-config-property-value> | </activation-config-property> | <activation-config-property> | <activation-config-property-name>destination</activation-config-property-name> | <activation-config-property-value>queue/CMS</activation-config-property-value> | </activation-config-property> | </activation-config> | <env-entry> | <description>The name of the application</description> | <env-entry-name>com.messaging.messagemanager.receiving.MessageReceiver/applicationName</env-entry-name> | <env-entry-type>java.lang.String</env-entry-type> | <env-entry-value>CMS</env-entry-value> | </env-entry> | </message-driven> | | <session> | <ejb-name>IncomingMessageHandler</ejb-name> | <ejb-class>com.ecebs.multefile.messaging.messagemanager.receiving.IncomingMessageHandler</ejb-class> | <env-entry> | <description>The name of the application</description> | <env-entry-name>com.messaging.messagemanager.receiving.IncomingMessageHandler/applicationName</env-entry-name> | <env-entry-type>java.lang.String</env-entry-type> | <env-entry-value>CMS</env-entry-value> | </env-entry> | </session> | | <session> | <ejb-name>MessageStoreManagerBean</ejb-name> | <ejb-class>com.messaging.messagestoremanager.MessageStoreManagerBean</ejb-class> | <env-entry> | <description>The name of the application</description> | <env-entry-name>com.messaging.messagestoremanager.MessageStoreManagerBean/applicationName</env-entry-name> | <env-entry-type>java.lang.String</env-entry-type> | <env-entry-value>CMS</env-entry-value> | </env-entry> | <persistence-context-ref> | <persistence-context-ref-name>messagemanager_em</persistence-context-ref-name> | <persistence-unit-name>messagemanager</persistence-unit-name> | </persistence-context-ref> | </session> | | | </enterprise-beans> | | </ejb-jar> | all beans from MM are defined here with the same <env-entry>. here I put only few of them to make it short. when I debug my application and send a mock message to the "MessagerReceiver" the "applicationName" is set with CMS so the dependency injection did work. When i simulate I use the IncomingMessageHandler bean, the applicationName is not set with the value specified in the ejb-jar.xml (i.e. CMS). here the code of the incomingMessageHandler bean and MessageReceiver message driven bean: | @Stateless | public class IncomingMessageHandler implements IIncomingMessageHandler{ | | //... | | @Resource | private String applicationName; | | public String getApplicationName() { | return applicationName; | } | | public void setApplicationName(String applicationName) { | this.applicationName = applicationName; | } | | //... | } | | public class MessageReceiver implements MessageListener{ | //... | | @Resource | private String applicationName; | | public String getApplicationName() { | return applicationName; | } | | public void setApplicationName(String applicationName) { | this.applicationName = applicationName; | } | | public void onMessage(Message message) { | //... | } | //... | a little help and explaination will be appreciated to understand what is wrong in my code/approach. Any good references/internet link that could help me to understand the structure of an ear file or how to use ejb-jar.xml and persistence.xml in ear are also welcome. Thanks a lot View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4242124#4242124 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4242124 _______________________________________________ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
