JNDI and env. vars. in ejb-jar.xml

Question

I have been trying for several days now to have my EJB session bean access
its env. vars. stored in the ejb-jar.xml document. I have been unsuccessful.
The only place I have been able to store my env. vars. is in the web.xml
document outside my .jar file. Although workable, it would be preferable to
store them in the ejb-jar.xml document in my .jar file.
I am hoping some one can help me. I am using the following code in my ejb:
Context init = new InitialContext();
Context env = (Context)init.lookup("java:comp/env");
m_bTruncCorporate =
((Boolean)env.lookup(MICRworks.MICR_ENV_TRUNCORP)).booleanValue();
m_strOptPath = (String)env.lookup(MICRworks.MICR_ENV_OPFLPATH);
m_strOptAccount = (String)env.lookup(MICRworks.MICR_ENV_OPFLACCT);
m_strOptRouting = (String)env.lookup(MICRworks.MICR_ENV_OPFLROUT);
My ejb-jar.xml follows:
<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise
JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>
<ejb-jar>
<enterprise-beans>
<session>
<ejb-name>MICRworksBean</ejb-name>
<home>USDataworks.MICRworks.MICRworksHome</home>
<remote>USDataworks.MICRworks.MICRworks</remote>
<ejb-class>USDataworks.MICRworks.MICRworksBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<env-entry>
<description>Flag indicating whether to convert corporate
checks</description>
<env-entry-name>TruncateCorporate</env-entry-name>
<env-entry-type>java.lang.Boolean</env-entry-type>
<env-entry-value>true</env-entry-value>
</env-entry>
<env-entry>
<description>Location of the 1For1 exclusion files</description>
<env-entry-name>OptionFilePath</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>http://localhost:7001/MICRworksLite/files/</env-entry-value
>
</env-entry>
<env-entry>
<description>Name of the 1For1 account exclusions file</description>
<env-entry-name>OptionFileAccount</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>account_file.txt</env-entry-value>
</env-entry>
<env-entry>
<description>Name of the 1For1 routing exclusion file</description>
<env-entry-name>OptionFileRouting</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>routing_file.txt</env-entry-value>
</env-entry>
</session>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>MICRworksBean</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Supports</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
and my weblogic-ejb-jar.xml:
<!DOCTYPE weblogic-ejb-jar PUBLIC '-//BEA Systems, Inc.//DTD WebLogic 7.0.0
EJB//EN' 'http://www.bea.com/servers/wls700/dtd/weblogic-ejb-jar.dtd'>
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>MICRworksBean</ejb-name>
<stateless-session-descriptor>
<pool>
</pool>
<stateless-clustering>
</stateless-clustering>
</stateless-session-descriptor>
<transaction-descriptor>
</transaction-descriptor>
<jndi-name>MICRworksBean</jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
My feeling is that I am missing some sort of reference in the
weblogic-ejb-jar.xml that points to the ejb-jar.xml but I have tried several
things without success.
I would appreciate any help I can get...especially if it contains specific
code I can use as I am rather new to writing and deploying ejbs!
Thanx in advance. Marek :-)

Answer 1

Thanks for the reference. I was using another book as a reference (Using
Java 2 Enterprise Edition by Mark Wutka) which had the same sort of example
and as you can see below, I coded my bean as they suggest...I'm still unable
to access the env. vars.!
I deployed by bean using WebLogic's Builder and but didn't create any sort
of application. I let WebLogic do what it would on its own. The WebLogic
documentation seemed to indicate for simple testing this would work
fine...is it wrong?
btw. MICRworks.MICR_ENV_TRUNCORP equates to "TruncateCorporate" as you
probably guessed.
The WebLogic Admin Console shows the environment variables in the EJB
Descriptors for my EJB but they do not show up when I view the JNDI tree for
my server. I have taken this to mean that the deployment tool is not
binding my env. vars. for some reason which would explain why my bean can't
find them.
I know it must be something stupid I am doing (or not doing) but I just
can't see it. Please help!
"Ryan LeCompte" <[email protected]> wrote in message
news:[email protected]...
>
Hello Marek,
I would suggest that you download the free book "Mastering EJB 2ndEdition" by
Ed Roman, Scott Ambler, and Tyler Jewell. The source code for the book isalso
freely available and is meant to be deployed specifically on WebLogic.Look for
a sample application called "Jasmine", which shows how to use environmententries.
You will see a concrete example of how they are defined and later accessedfrom
within EJBs. The book and source code are available at the followingaddress:
>
http://www.theserverside.com/books/masteringEJB/index.jsp
Best regards,
Ryan LeCompte
[email protected]
http://www.louisiana.edu/~rml7669
"Marek Kossak" <[email protected]> wrote:
I have been trying for several days now to have my EJB session bean
access
its env. vars. stored in the ejb-jar.xml document. I have beenunsuccessful.
The only place I have been able to store my env. vars. is in the web.xml
document outside my .jar file. Although workable, it would be preferable
to
store them in the ejb-jar.xml document in my .jar file.
I am hoping some one can help me. I am using the following code in my
ejb:
Context init = new InitialContext();
Context env = (Context)init.lookup("java:comp/env");
m_bTruncCorporate =
((Boolean)env.lookup(MICRworks.MICR_ENV_TRUNCORP)).booleanValue();
m_strOptPath = (String)env.lookup(MICRworks.MICR_ENV_OPFLPATH);
m_strOptAccount = (String)env.lookup(MICRworks.MICR_ENV_OPFLACCT);
m_strOptRouting = (String)env.lookup(MICRworks.MICR_ENV_OPFLROUT);
My ejb-jar.xml follows:
<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise
JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>
<ejb-jar>
<enterprise-beans>
<session>
<ejb-name>MICRworksBean</ejb-name>
<home>USDataworks.MICRworks.MICRworksHome</home>
<remote>USDataworks.MICRworks.MICRworks</remote>
<ejb-class>USDataworks.MICRworks.MICRworksBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<env-entry>
<description>Flag indicating whether to convert corporate
checks</description>
<env-entry-name>TruncateCorporate</env-entry-name>
<env-entry-type>java.lang.Boolean</env-entry-type>
<env-entry-value>true</env-entry-value>
</env-entry>
<env-entry>
<description>Location of the 1For1 exclusion files</description>
<env-entry-name>OptionFilePath</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>http://localhost:7001/MICRworksLite/files/</env-entry-valu
e
>>>
</env-entry>
<env-entry>
<description>Name of the 1For1 account exclusions file</description>
<env-entry-name>OptionFileAccount</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>account_file.txt</env-entry-value>
</env-entry>
<env-entry>
<description>Name of the 1For1 routing exclusion file</description>
<env-entry-name>OptionFileRouting</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>routing_file.txt</env-entry-value>
</env-entry>
</session>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>MICRworksBean</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Supports</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
and my weblogic-ejb-jar.xml:
<!DOCTYPE weblogic-ejb-jar PUBLIC '-//BEA Systems, Inc.//DTD WebLogic
7.0.0
EJB//EN' 'http://www.bea.com/servers/wls700/dtd/weblogic-ejb-jar.dtd'>
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>MICRworksBean</ejb-name>
<stateless-session-descriptor>
<pool>
</pool>
<stateless-clustering>
</stateless-clustering>
</stateless-session-descriptor>
<transaction-descriptor>
</transaction-descriptor>
<jndi-name>MICRworksBean</jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
My feeling is that I am missing some sort of reference in the
weblogic-ejb-jar.xml that points to the ejb-jar.xml but I have tried
several
things without success.
I would appreciate any help I can get...especially if it containsspecific
code I can use as I am rather new to writing and deploying ejbs!
Thanx in advance. Marek :-)