@Resource Annotation fails to inject custom Connectionfactory

[paul_]

Hi,

i'm trying to get JBoss 7 (7.1.1) hooked up with the Neo4J Database. There is already a working connector for that (http://alexsmirnov.wordpress.com/2011/05/18/neo4j-java-ee-connector/)

Deployment and startup of my application are no problem.The connectionfactory gets bound to its jndi name at startup:

[org.jboss.as.deployment.connector] (MSC service thread 1-9) JBAS010406: Registered connection factory java:/eis/Neo4j

[org.jboss.as.deployment.connector] (MSC service thread 1-9) JBAS010401: Bound JCA ConnectionFactory [java:/eis/Neo4j]

But the trouble starts when I want to use the database / the connectionfactory. I inject the connectionfactory with the @Resource Annotation like this:

(NEO4J_NAME = "java:/eis/Neo4j")

	@Resource(lookup=NEO4J_NAME)
	private Neo4JConnectionFactory connectionFactory;

As soon as I call any method on the connectionFactory (connectionFactory.getConnection() for example) JBoss starts beating me up:

...

Caused by: java.lang.IllegalArgumentException: Can not set com.netoprise.neo4j.connection.Neo4JConnectionFactory field test.Neo4jClient.connectionFactory to com.netoprise.neo4j.connection.Neo4JConnectionFactoryImpl

(Neo4JConnectionFactory obviously is the interface and *Impl is the corresponding implementing class for that interface..)

I already tried different paramters for the @Resource annotation (mappedBy, name), even tried a jndi lookup by hand (which gives me a classcastexception)

Maybe I'm missing something obvious but I've been pulling my hair out over this one..

Any hints would be greatly appreciated.

Greetings from Germany

p.salg

____

Edit:

I attached the snippet from the standalone.xml config file which I'm using, maybe this will help a little more.

[sfcoy]

This looks like a classloading problem.

Does your application contain a JAR with the Neo4JConnectionFactory class file in it?

If so, try removing it from the runtime deployment.

[paul_]

Well yes, my EAR contains "neo4j-connector-api-0.3-SNAPSHOT.jar" which has Neo4jConnection.class and Neo4jConnectionFactory.class in it.

What exactly do you mean by "remove it from the runtime deployment"? I think I would need the jar in the ear so I can use the ConnectionFactory ?

Packaging in my project is as follows:

EAR

     - lib

          - neo4j-connector-api-0.3-SNAPSHOT.jar

WAR

     - src

          - Neo4jClient (Which has the @Resource Annotation in it)

          - TestBean (Stateless Bean to get called from View (Richfaces 4) )

     - WebContent

          - index.xhtml

          - WEB-INF

               - beans.xml

               - faces-config.xml

               - web.xml

               - lib

                    - Richfaces 4 libs & dependencies

A little confused =D

Greetings from Germany,

ps

[paul_]

Okay, I finally got it working.

My current solution is this:

- I removed the WAR from my EAR File,

- As Stephen suggested, I removed the neo4j-connector-api-0.3-SNAPSHOT.jar from the build path of the project

- Instead I put the neo4j-connector-api-0.3-SNAPSHOT.jar in jdk/jre/lib/endorsed directory which is used to build the project and run the server with

- deployed neo4j-connector.rar in {server-home}/standalone/deployments

- added jboss-deployment-structure.xml file in {war}/webcontent/web-inf    (as seen in http://groups.google.com/group/xadisk/browse_thread/thread/47b7324ece6b884a?pli=1)

- configured the server to use the connector (see <subsystem xmlns="urn:jboss:domain:resource-adapters:1.0">)

- then injected the connectionfactory in my class with @Resource annotation   (as seen in http://alexsmirnov.wordpress.com/2011/05/18/neo4j-java-ee-connector/)

I will provide a full tutorial as well as soon as I've written it.

Thanks for the help =)

Greetings from Germany

ps

[paul_]

I have completed the tutorial now, it can be found here:

http://sblog.de.nu/wp/?p=6

(Though I still didn't get it working with an EAR.. will look into that again)

Greetings from Germany

ps