[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Re: NullPointerException when adding values to one-many rela

[santins]

I have seen that there is an open bug for many to many relations:

http://jira.jboss.com/jira/browse/JBAS-1507

Maybe it is related to this one. Anyway, this is my ejb-jar.xml that could help:

<?xml version="1.0" encoding="UTF-8"?>

<!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>
  <display-name>SoftiamEJBs</display-name>
  <enterprise-beans>
    
      <display-name>SessionControlEJB</display-name>
      <ejb-name>SessionControlEJB</ejb-name>
      softiam.services.ejbs.sessioncontrol.SessionControlHome
      softiam.services.ejbs.sessioncontrol.SessionControl
      <ejb-class>softiam.services.ejbs.sessioncontrol.SessionControlEJB</ejb-class>
      <session-type>Stateful</session-type>
      <transaction-type>Container</transaction-type>
    
    
      <ejb-name>ExperimentEJB</ejb-name>
      softiam.services.ejbs.experiment.ExperimentHome
      softiam.services.ejbs.experiment.Experiment
      <ejb-class>softiam.services.ejbs.experiment.ExperimentEJB</ejb-class>
      <abstract-schema-name>experiments</abstract-schema-name>
      <prim-key-class>java.lang.Long</prim-key-class>
      <primkey-field>experimentId</primkey-field>
      True
      <cmp-field>
         <field-name>experimentId</field-name>
      </cmp-field>
      <cmp-field>
         <field-name>user</field-name>
      </cmp-field>
      <cmp-field>
         <field-name>coupling</field-name>
      </cmp-field>
      <cmp-field>
               <field-name>state</field-name>
      </cmp-field>
      <cmp-field>
               <field-name>experimentIndex</field-name>
      </cmp-field>
      <cmp-field>
               <field-name>name</field-name>
      </cmp-field>
      <cmp-field>
               <field-name>description</field-name>
      </cmp-field>
      <cmp-field>
               <field-name>creationTime</field-name>
      </cmp-field>
      <cmp-field>
               <field-name>operationTime</field-name>
      </cmp-field>
      
        <query-method>
          <method-name>findExperiments</method-name>
          <method-params>
            <method-param>java.lang.String</method-param>
          </method-params>
        </query-method>
        <ejb-ql>
          SELECT OBJECT(e)
                 FROM experiments e
                 WHERE e.user=?1
        </ejb-ql>
      
      
        <query-method>
          <method-name>findExperiments</method-name>
          <method-params>
            <method-param>java.lang.String</method-param>
            <method-param>java.lang.String</method-param>
          </method-params>
        </query-method>
        <ejb-ql>
          SELECT OBJECT(e)
                 FROM experiments e
                 WHERE e.user=?1 AND e.coupling=?2
        </ejb-ql>
      
      
        <query-method>
          <method-name>findRunningExperiments</method-name>
          <method-params></method-params>
        </query-method>
        <ejb-ql>
          SELECT OBJECT(e)
                 FROM experiments e
                 WHERE e.state=1
        </ejb-ql>
      
      
        <query-method>
          <method-name>findNotStartedExperiments</method-name>
          <method-params></method-params>
        </query-method>
        <ejb-ql>
          SELECT OBJECT(e)
                 FROM experiments e
                 WHERE e.state=0
        </ejb-ql>
      
      <persistence-type>Container</persistence-type>
    
    
          <ejb-name>ConfigurationEJB</ejb-name>
          softiam.services.ejbs.configuration.ConfigurationHome
          softiam.services.ejbs.configuration.Configuration
          <ejb-class>softiam.services.ejbs.configuration.ConfigurationEJB</ejb-class>
          <abstract-schema-name>configurations</abstract-schema-name>
          <prim-key-class>softiam.services.ejbs.configuration.ConfigurationPK</prim-key-class>
          True
          <cmp-field>
             <field-name>experimentId</field-name>
          </cmp-field>
          <cmp-field>
             <field-name>coupling</field-name>
          </cmp-field>
          <cmp-field>
             <field-name>module</field-name>
          </cmp-field>
          <cmp-field>
             <field-name>parameter</field-name>
          </cmp-field>
          <cmp-field>
             <field-name>type</field-name>
          </cmp-field>
          <cmp-field>
             <field-name>singleValue</field-name>
          </cmp-field>
          <cmp-field>
             <field-name>rangeInitial</field-name>
          </cmp-field>
          <cmp-field>
              <field-name>rangeEnd</field-name>
          </cmp-field>
          <cmp-field>
              <field-name>rangeIncrement</field-name>
          </cmp-field>
          <cmp-field>
              <field-name>rangeCombine</field-name>
          </cmp-field>
          <cmp-field>
              <field-name>multipleValues</field-name>
          </cmp-field>
          <cmp-field>
              <field-name>multipleCombine</field-name>
          </cmp-field>
          <persistence-type>Container</persistence-type>
    
  </enterprise-beans>
  
    <ejb-relation>
       <ejb-relation-name>experiment-configuration</ejb-relation-name>
       <ejb-relationship-role>
           experiment
           <ejb-relationship-role-name>ExperimentRole</ejb-relationship-role-name>
           One
           <relationship-role-source>
                experiment
                <ejb-name>ExperimentEJB</ejb-name>
           </relationship-role-source>
           <cmr-field>
                configuration
                <cmr-field-name>configuration</cmr-field-name>
                <cmr-field-type>java.util.Collection</cmr-field-type>
           </cmr-field>
      </ejb-relationship-role>
      <ejb-relationship-role>
           configuration
           <ejb-relationship-role-name>ConfigurationRole</ejb-relationship-role-name>
           Many
           <cascade-delete />
           <relationship-role-source>
               configuration
               <ejb-name>ConfigurationEJB</ejb-name>
           </relationship-role-source>
      </ejb-relationship-role>
   </ejb-relation>

</ejb-jar>


Many thanks,

Santi

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