4 Replies Latest reply on Dec 6, 2006 8:57 AM by nico67

Cyclic depencies

nico67 Dec 1, 2006 12:08 PM

Hi,

I've got several Stateless beans which have cyclic dependencies between them. When deploying my .jar I get several errors saying me that kind of thing :

ObjectName: jboss.j2ee:jar=escapek.jar,name=TestServiceBean,service=EJB3
 State: NOTYETINSTALLED
 I Depend On:
 jboss.j2ee:jar=escapek.jar,name=RegistryServiceBean,service=EJB3

I've read that using @IgnoreDependency or specifying it in jboss.xml should fix the problem.
As i would like my code to be independent as possible I choose to add a jboss.xml in META-INF/ of my .jar:

<jboss>
 <enterprise-beans>
 <session>
 <ejb-name>TestServiceBean</ejb-name>
 <ejb-ref>
 <ejb-ref-name>RegistryServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 </session>
 <session>
 <ejb-name>CmdbServiceBean</ejb-name>
 <ejb-ref>
 <ejb-ref-name>RepositoryServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 <ejb-ref>
 <ejb-ref-name>SecurityServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 </session>
 <session>
 <ejb-name>RegistryServiceBean</ejb-name>
 <ejb-ref>
 <ejb-ref-name>RepositoryServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 <ejb-ref>
 <ejb-ref-name>SecurityServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 </session>
 </enterprise-beans>
</jboss>

This doesn't work. For example, TestServiceBean is not deployed even by having specified ignore-dependency in jboss.xml.

I'm using EJB3-RC9 on Jboss 4.0.5.

1. Re: Cyclic depencies

nico67 Dec 3, 2006 9:51 AM (in response to nico67)

Hi,

Sorry for this topic title, I mean "Cyclic dependencies" ...

So I still can't make the dependecy ignored by using jboss.xml. So i wanted to try by specifying @IgnoreDependency in the source code. The problem is that i can't find the library which defines this annotation. I can't see it in EJB3-RC9 package not in the client/ directory of my jboss installation where EJB3 was installed.

Also, i don't know if its related, but I've seen JIRA http://jira.jboss.com/jira/browse/EJBTHREE-792 , which sounds a bit like the same problem I have.

Please, let me know if you have any ideas.
Actions
2. Re: Cyclic depencies

kgrjb Dec 4, 2006 2:55 AM (in response to nico67)

to compile @IgnoreDependency - you need
jboss-4.0.5.GA\client\jboss-annotations-ejb3.jar in your compile classpath.
Actions

3. Re: Cyclic depencies

nico67 Dec 4, 2006 10:11 AM (in response to nico67)

to compile @IgnoreDependency - you need
jboss-4.0.5.GA\client\jboss-annotations-ejb3.jar in your compile classpath.

I found jboss-annotations-ejb3.jar in ejb3.deployer directory which is in the deploy directory of my server, not the client/ directory as you specified.
Note that to install EJB3 , I installed JBoss 4.0.5 , copied the default server configuration, then run the EJB3 ant script (install.xml) to install EJB3 stuffs in my server configuration.

Current conclusion is that:
- <ignore-dependency /> put in jboss.xml is ignored : i mean event if i specify it, the bean are not deployed;
- @IgnoreDependency works fine. When specified, the bean is started even if dependencies are not.

So, there may be a problem with my jboss.xml file and ignore-dependency. Has someone got it running ?

I copy below my jboss.xml file content.

<?xml version="1.0" encoding="UTF-8"?>
<jboss
 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://www.jboss.org/j2ee/schema/jboss_5_0.xsd"
 version="3.0">
 <enterprise-beans>
 <session>
 <ejb-name>CmdbServiceBean</ejb-name>
 <ejb-ref>
 <ejb-ref-name>RepositoryServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 <ejb-ref>
 <ejb-ref-name>SecurityServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 </session>
 <session>
 <ejb-name>RegistryServiceBean</ejb-name>
 <ejb-ref>
 <ejb-ref-name>RepositoryServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 <ejb-ref>
 <ejb-ref-name>SecurityServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 </session>
 <session>
 <ejb-name>TestServiceBean</ejb-name>
 <ejb-ref>
 <ejb-ref-name>RegistryServiceBean</ejb-ref-name>
 <ignore-dependency/>
 </ejb-ref>
 </session>
 </enterprise-beans>
</jboss>

4. Re: Cyclic depencies

nico67 Dec 6, 2006 8:57 AM (in response to nico67)

Hi,

I finally found out a syntax for jboss.xml to Ingnore dependency injection.

The jboss.xml file from my previous posts now look like :

<?xml version="1.0" encoding="UTF-8"?>
<jboss 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://www.jboss.org/j2ee/schema/jboss_5_0.xsd"
 version="3.0">
 <enterprise-beans>
 <session>
 <ejb-name>RegistryServiceBean</ejb-name>
 <ignore-dependency>
 <injection-target>
 <injection-target-class>org.escapek.core.services.impl.RepositoryServiceBean</injection-target-class>
 <injection-target-name>repository</injection-target-name>
 </injection-target>
 </ignore-dependency>
 </session>
 <session>
 <ejb-name>SecurityServiceBean</ejb-name>
 <ignore-dependency>
 <injection-target>
 <injection-target-class>org.escapek.core.services.impl.RegistryServiceBean</injection-target-class>
 <injection-target-name>registryService</injection-target-name>
 </injection-target>
 </ignore-dependency>
 </session>
 <session>
 <ejb-name>TestServiceBean</ejb-name>
 <ignore-dependency>
 <injection-target>
 <injection-target-class>org.escapek.core.services.impl.RegistryServiceBean</injection-target-class>
 <injection-target-name>registry</injection-target-name>
 </injection-target>
 </ignore-dependency>
 </session>
 </enterprise-beans>
</jboss>

For each bean, the ignore-dependency tag tell which class and which field name to ignore in the bean.

Using this setup I managed to start my beans.

Can someone from the dev. could tell me if there's another syntax as i saw it of others posts.

Go to original post