Hi Ashwani, this took a little longer to check, please excuse my replying to mails out of order! I think I have the ejb-link references done correctly, in the <ejb-link> tag I've placed the JNDI name (the same as the name used for the <ejb-name> tag) in the ejb-link tag. I've included a http link to the contents of orion-ejb-jar.xml (I'm using Orion 1.5.2) which I've done something similar. What is bothering me is the fact the the exact same code is working fine from a regular java client but throws the classcastexception when I copy and paste the same code into an ejb. Thanks for your help with this, I really do appreciate it, Oisin heres the content of the ejb-jar.xml file deployment descriptor: <?xml version="1.0"?> <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.2//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_1_2.dtd";> <ejb-jar> <description> </description> <enterprise-beans> <entity> <description> </description> <ejb-name>MyHLR</ejb-name> <home>HLRHome</home> <remote>HLR</remote> <ejb-class>HLRBean</ejb-class> <primkey-class>java.lang.Integer</primkey-class> <reentrant>False</reentrant> <persistence-type>Container</persistence-type> <cmp-field><field-name>SubscriberNumber</field-name></cmp-field> <cmp-field><field-name>Available</field-name></cmp-field> <primkey-field>SubscriberNumber</primkey-field> <ejb-ref> <ejb-ref-name>MyHLR</ejb-ref-name> <ejb-ref-type>Entity</ejb-ref-type> <home>HLRHome</home> <remote>HLR</remote> <ejb-link>MyMessageNode</ejb-link> </ejb-ref> <ejb-ref> <ejb-ref-name>MyMessageNode</ejb-ref-name> <ejb-ref-type>Entity</ejb-ref-type> <home>MessageNodeHome</home> <remote>MessageNode</remote> <ejb-link>MyHLR</ejb-link> </ejb-ref> </entity> <entity> <description> </description> <ejb-name>MyMessageNode</ejb-name> <home>MessageNodeHome</home> <remote>MessageNode</remote> <ejb-class>MessageNodeBean</ejb-class> <primkey-class>java.lang.Integer</primkey-class> <reentrant>False</reentrant> <persistence-type>Container</persistence-type> <cmp-field><field-name>DestinationAddress</field-name></cmp-field> <cmp-field><field-name>OriginatingAddress</field-name></cmp-field> <cmp-field><field-name>SMSCAddress</field-name></cmp-field> <cmp-field><field-name>StatusReportingRequest</field-name></cmp-field> <cmp-field><field-name>ServiceCentreTimeStamp</field-name></cmp-field> <cmp-field><field-name>ReplyPath</field-name></cmp-field> <cmp-field><field-name>Length</field-name></cmp-field> <cmp-field><field-name>MessageTypeIndicator</field-name></cmp-field> <cmp-field><field-name>Content</field-name></cmp-field> <cmp-field><field-name>Priority</field-name></cmp-field> <cmp-field><field-name>BillingDetails</field-name></cmp-field> <cmp-field><field-name>RoutingInfo</field-name></cmp-field> <cmp-field><field-name>IsPrimary</field-name></cmp-field> <cmp-field><field-name>HashValue</field-name></cmp-field> <cmp-field><field-name>WasTransmitted</field-name></cmp-field> <cmp-field><field-name>Cost</field-name></cmp-field> <cmp-field><field-name>NodeName</field-name></cmp-field> <cmp-field><field-name>ClusterIsland</field-name></cmp-field> <cmp-field><field-name>MessageID</field-name></cmp-field> <primkey-field>MessageID</primkey-field> <ejb-ref> <ejb-ref-name>MyHLR</ejb-ref-name> <ejb-ref-type>Entity</ejb-ref-type> <home>HLRHome</home> <remote>HLR</remote> <ejb-link>MyMessageNode</ejb-link> </ejb-ref> <ejb-ref> <ejb-ref-name>MyMessageNode</ejb-ref-name> <ejb-ref-type>Entity</ejb-ref-type> <home>MessageNodeHome</home> <remote>MessageNode</remote> <ejb-link>MyHLR</ejb-link> </ejb-ref> </entity> </enterprise-beans> <assembly-descriptor> <container-transaction> <method> <ejb-name>MyHLR</ejb-name> <method-name>*</method-name> </method> <trans-attribute>NotSupported</trans-attribute> <container-transaction> <method> <ejb-name>MyMessageNode</ejb-name> <method-name>*</method-name> </method> <trans-attribute>Required</trans-attribute> </container-transaction> </container-transaction> </assembly-descriptor> </ejb-jar> and the orion-ejb-jar.xml http://www.cs.tcd.ie/Oisin.Kim/ejb/orion-ejb-jar.xml On Tuesday 03 July 2001 06:18, Ashwani Kalra wrote: > Hi, > > This is what you should do to access ejb from another ejb. For more details > you can refer to DD chapter of ejb specs > > > This is taked from ejb spec: > The ejb-link element is used in the ejb-ref element to specify that an > EJB reference is linked to another enterprise bean. > The value of the ejb-link element must be the ejb-name of an enter-prise > bean in the same ejb-jar file, or in another ejb-jar file in the > same J2EE application unit. > Alternatively, the name in the ejb-link element may be composed of a > path name specifying the ejb-jar containing the referenced enterprise > bean with the ejb-name of the target bean appended and separated from > the path name by # . The path name is relative to the jar file con-taining > the referencing component. This allows multiple enterprise > beans with the same ejb-name to be uniquely identified. > Used in: ejb-entity-ref, ejb-ref > Example: > <ejb-link>EmployeeRecord</ejb-link> > Example for entity beans that exist in other ejb-jar files in the same > J2EE unit: > <ejb-link>../products/products.jar#PrductEJB</ejb-link> > > > Example: > <ejb-entity-ref> > <description> > This is a reference descriptor for an order bean which is > used in product.jar > </description> > <remote-ejb-name>OrderEJB</remote-ejb-name> > <ejb-ref-name>ejb/Order</ejb-ref-name> > <home>com.commercewarehouse.catalog.OrderHome</home> > <remote>com.commercewarehouse.catalog.Order</remote> > <ejb-link>../orders/orders.jar#OrderEJB</ejb-link> > </ejb-entity-ref> > --> > > ======================== > Cheers > Ashwani Kalra > Aithent Technologies > India > http://www.geocities.com/ashwani_kalra/ > ========================= > > > > > > -----Original Message----- > From: A mailing list for Enterprise JavaBeans development > [mailto:[EMAIL PROTECTED]]On Behalf Of Oisin Kim > Sent: Thursday, August 16, 2001 12:27 AM > To: [EMAIL PROTECTED] > Subject: What do I have to do to get EJBs to communicate with each > other? > =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". 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