The DataSource with the JNDI name: MyDataSource could not be located.

Question

hi,
I created a connection pool myconnectionpool and i create a data source MyDataSource with jndi name as mydsn.
in my weblogic-cmp-rdbms-jar.xml i gave
<data-source-name>MyDataSource</data-source-name> and
When i deploy the bean i am getting following exception.
Unable to deploy EJB: containerManaged from cmp7.jar:
weblogic.ejb20.WLDeploymentException: The DataSource with the JNDI name: MyDataSource could not be located. Please ensure that the DataSource has been deployed successfully and that the JNDI name in your EJB Deployment descriptor is correct.
     at weblogic.ejb20.cmp.rdbms.RDBMSPersistenceManager.setup(RDBMSPersistenceManager.java:128)
     at weblogic.ejb20.manager.BaseEntityManager.setupPM(BaseEntityManager.java:213)
     at weblogic.ejb20.manager.BaseEntityManager.setup(BaseEntityManager.java:185)
     at weblogic.ejb20.manager.DBManager.setup(DBManager.java:160)
     at weblogic.ejb20.deployer.ClientDrivenBeanInfoImpl.deploy(ClientDrivenBeanInfoImpl.java:928)
     at weblogic.ejb20.deployer.EJBDeployer.activate(EJBDeployer.java:1216)
     at weblogic.ejb20.deployer.Deployer.deploy(Deployer.java:850)
     at weblogic.j2ee.EJBComponent.deploy(EJBComponent.java:70)
     at weblogic.j2ee.Application.addComponent(Application.java:253)
     at weblogic.j2ee.J2EEService.addDeployment(J2EEService.java:144)
     at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:364)
     at weblogic.management.mbeans.custom.DeploymentTarget.addDeployments(DeploymentTarget.java:301)
     at weblogic.management.mbeans.custom.DeploymentTarget.updateServerDeployments(DeploymentTarget.java:255)
     at weblogic.management.mbeans.custom.DeploymentTarget.updateDeployments(DeploymentTarget.java:206)
     at java.lang.reflect.Method.invoke(Native Method)
     at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:716)
     at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:698)
     at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:380)
     at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1555)
     at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
     at weblogic.management.internal.RemoteMBeanServerImpl.invoke(RemoteMBeanServerImpl.java:902)
     at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:480)
     at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:208)
     at $Proxy34.updateDeployments(Unknown Source)
     at weblogic.management.configuration.ServerMBean_CachingStub.updateDeployments(ServerMBean_CachingStub.java:3724)
     at weblogic.management.deploy.slave.SlaveDeployer.updateServerDeployments(SlaveDeployer.java:1584)
     at weblogic.management.deploy.slave.SlaveDeployer.resume(SlaveDeployer.java:337)
     at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.resume(DeploymentManagerServerLifeCycleImpl.java:233)
     at weblogic.t3.srvr.ServerLifeCycleList.resume(ServerLifeCycleList.java:61)
     at weblogic.t3.srvr.T3Srvr.resume(T3Srvr.java:852)
     at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:273)
     at weblogic.Server.main(Server.java:33)
Where i went wrong?
Thanks in advance
phani

Answer 1

Hi ,
I have the same problem .when i look into JNDI tree view the jndi name is listed. but it saying error below listed.
my
ejb-name:=containerManaged
datasourcename=EX_DataSource
jndi-name=EX_JNDI
<Feb 14, 2005 3:10:08 PM IST> <Error> <Deployer> <149231> <The slave deployer was unable to set the activatio
true for the application EX_Container
weblogic.management.ApplicationException: activate failed forEX_Container
Module Name: EX_Container, Error: Exception activating module: EJBModule(EX_Container,status=PREPARED)
Unable to deploy EJB: containerManaged from EX_Container.jar:
The DataSource with the JNDI name: EX_DataSource could not be located. Please ensure that the DataSource has
ed successfully and that the JNDI name in your EJB Deployment descriptor is correct.
TargetException:
Unable to deploy EJB: containerManaged from EX_Container.jar:
The DataSource with the JNDI name: EX_DataSource could not be located. Please ensure that the DataSource has
ed successfully and that the JNDI name in your EJB Deployment descriptor is correct.
at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:1093)
at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:1022)
at weblogic.management.deploy.slave.SlaveDeployer.setActivationStateForAllApplications(SlaveDeployer.
at weblogic.management.deploy.slave.SlaveDeployer.resume(SlaveDeployer.java:376)
at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.resume(DeploymentManagerServerLife
ava:235)
at weblogic.t3.srvr.ServerLifeCycleList.resume(ServerLifeCycleList.java:65)
at weblogic.t3.srvr.T3Srvr.resume(T3Srvr.java:832)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:300)
at weblogic.Server.main(Server.java:32)
my weblogic-ejb-jar.xml
<?xml version="1.0"?>
<!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>containerManaged</ejb-name>
<entity-descriptor>
<persistence>
     <persistence-use>
     <type-identifier>WebLogic_CMP_RDBMS</type-identifier>
     <type-version>7.0</type-version>
     <type-storage>META-INF/weblogic-cmp-rdbms-jar.xml</type-storage>
     </persistence-use>
</persistence>
</entity-descriptor>
<jndi-name>EX_JNDI</jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
<?xml version="1.0"?>
<!DOCTYPE weblogic-rdbms-jar PUBLIC
'-//BEA Systems, Inc.//DTD WebLogic 7.0.0 EJB RDBMS Persistence//EN'
'http://www.bea.com/servers/wls700/dtd/weblogic-rdbms20-persistence-700.dtd'>
weblogic-cmp-rdbms-jar.xml file
<weblogic-rdbms-jar>
<weblogic-rdbms-bean>
<ejb-name>containerManaged</ejb-name>
<data-source-name>EX_DataSource</data-source-name>
<table-map>
<table-name>ejbAccounts</table-name>
<field-map>
<cmp-field>accountId</cmp-field>
<dbms-column>id</dbms-column>
</field-map>
<field-map>
<cmp-field>balance</cmp-field>
<dbms-column>bal</dbms-column>
</field-map>
<field-map>
<cmp-field>accountType</cmp-field>
<dbms-column>type</dbms-column>
</field-map>
</table-map>
</weblogic-rdbms-bean>
<create-default-dbms-tables>DropAndCreateAlways</create-default-dbms-tables>
</weblogic-rdbms-jar>
ejb-jar.xml
<?xml version="1.0"?>
<!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>
<entity>
<ejb-name>containerManaged</ejb-name>
<home>containerBN.EX.AccountHome</home>
<remote>containerBN.EX.Account</remote>
<ejb-class>containerBN.EX.AccountBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>AccountBean</abstract-schema-name>
<cmp-field>
<field-name>accountId</field-name>
</cmp-field>
<cmp-field>
<field-name>balance</field-name>
</cmp-field>
<cmp-field>
<field-name>accountType</field-name>
</cmp-field>
<primkey-field>accountId</primkey-field>
<query>
<query-method>
<method-name>findBigAccounts</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM AccountBean AS a WHERE a.balance > ?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findAccount</method-name>
<method-params>
<method-param>double</method-param>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM AccountBean AS a WHERE a.balance = ?1]]>
</ejb-ql>
</query>
<query>
<query-method>
<method-name>findNullAccounts</method-name>
<method-params>
</method-params>
</query-method>
<ejb-ql>
<![CDATA[SELECT OBJECT(a) FROM AccountBean AS a WHERE a.accountType IS NULL]]>
</ejb-ql>
</query>
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>containerManaged</ejb-name>
     <method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
<ejb-client-jar>EX_Container.jar</ejb-client-jar>
</ejb-jar>
pls lhelp me .
my email id: [email protected]
thanks in advance.
Sudhakar.M