Use of cache_scheme in data-sources.xml

Hi guys.
I have posted a couple of similar topics before - without any response ! I can't believe with all of the gurus out there that NOBODY knows the answer to this ! :-)
Anyway, we are providing a 'vanilla' type implementation of Oracle's Connection Pooling - just using Oracle's DataSource to open and close connections, and having Oracle dynamically take care of the pooling itself. ( Apparently, under this scenario, even max and min connections are set as required ).
However, if I specify the cache_scheme property within data-sources.xml, will it take effect using this basic implementation ? In other words, will changing it's value effect the behaviour once the max limit is reached and more connections are requested ?
Many thanks.
Steve.

Timo,
thanks for your respone! I managed to configure the application to use a data-source connection created on the application server. Also in order to be able to deploy the same EAR to a number of containers on different DB's.
I know it's possible to connect to a DB without using a data-sources.xml file .. but it seemed like my application was storing some 'old' connection information because it was able to connect to the db without having the data sources configured on the AS.
Do you need to restart JDeveloper after unchecking the 'Bunde default data-sources.xml during deployment' checkbox? Because it is working correctly right now ... .
Thanks,
Koen Verhulst

Similar Messages

Problem using JDBC (JNDI) DataSource and data-sources.xml w/ OC4J

I have a JClient application developed in JDev X. It works fine when using a JDBC URL for the connection (which then writes the connection into the BC4J.xcfg files, one for each application module). However, I would like the app to retrieve the data source from the server's data-sources.xml file. However, when, on the configurations tab of the application module I set the connection type to JDBC DataSource, and give it the JNDI name, it does not work, either with the embedded OC4J or the stand-alone OC4J. Any suggestions???
In the stand alone OC4J I verified that the data source exists (using java -jar admin.jar ormi://nemethzoltan3 admin welcome -application adatklinika -testDataSource -location jdbc/adatklinikaCoreDS) ... so the data source is defined in the data-sources.xml. Of course the error I get is JBO-30003.
If I just try to "test" the data source in Jdeveloper (using the context menu of the app module, and setting it to use the adatklinikaCoreDS) I get a JNDI error: unable to lookup data source and at level 3 a "javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial". I checked, the data source is defined under tools->embedded OC4J properties->data sources.
If I try to run the main form, simply nothing happens.
Please help!!!

Ok, figured out why running from jdeveloper wasn't working: the embedded OC4J server wasn't started (start it by running an html page from your project or something...and make sure you don't have a stand-alone oc4j running). AND more importantly it didn't have the library "embedded oc4j client" library included (project properties -> profiles -> development -> libraries)...which is needed for whatever reason.
Now to try and get it working with the stand-alone OC4J...

903/902/BC4J can't get data-sources.xml conn pooling to work in production; help

I have several BC4J ears deployed to a 903 instance of OC4J being configured as a standalone
instance. I've had this problem since I started deploying in development on 902. So it's
some basic problem that I've not mastered.
I can't get data-sources.xml managed connection pooling to actually pool conn's. I'm wanting
to declare my jndi jdbc source connection pool in j2ee/home/config/data-sources.xml.
Have all BC4J apps get conns from this JNDI JDBC pool. I've removed all data-sources.xml from my BC4J ears,
and published the jndi jdbc source in my oc4j common data-sources.xml. I've tested that this is
the place controlling the conn URL/login passwd by commenting it out of config/data-sources.xml
and my BC4J apps then throw exceptions, can't get conn.
I've set the oc4j startup cmd line with the BC4J property to enabled connection pooling:
-Djbo.doconnectionpooling=true
symptom
Connections are created and closed. Instead of being put back into the pool managed by oc4j,
what ever BC4J is doing or my data-sources.xml is doing, the connections are just being created and
closed.
I can verify this via (solaris) lsof and netstat, where I see my oc4j instance under test load
with only 1 or 2 conns to the db box, and the ephemeral port is tumbling, meaning a new socket is
being opened for each conn. ;( grrrrrrr
Does anyone have a clue as to why this is happening?
Thanks, curt
my data-sources.xml
<data-sources>
     <data-source
        class="com.evermind.sql.DriverManagerDataSource"
        connection-driver="oracle.jdbc.driver.OracleDriver"
        ejb-location="jdbc/DEVDS"
        location="jdbc/DEVCoreDS"
        name="DEVDS"
        password="j2train"
        pooled-location="jdbc/DEVPooledDS"
        url="jdbc:oracle:thin:@10.2.1.30:1521:GDOC"
        username="jscribe"
        xa-location="jdbc/xa/DEVXADS"
        inactivity-timeout="300"
        max-connections="50"
        min-connections="40"
    />
</data-sources>

I've run another test using local data-source.xml, that's packaged in the .ear. Still
pooling under BC4J doesn't work??
A piece of info is that the 903 oc4j release notes states that global conn pooling doesn't
work. Infering that the j2ee/home/config/data-sources.xml data sources aren't pooled or ??
I just tested so called local connection pooling, where I edited the data-sources.xml that
gets packaged in the ear, to include the min/max params and re-ran my test.
Still, the AM creates a new conn, it's to a new socket, and closes the conn when done. Causing
each conn to not be pooled, rather opened then closed to the DB box. As verified with lsof and
netstat, checking the ephemeral port # on the DB box side, always changes, meaning it's a
new socket and not an old pooled conn socket.
???? What the heck??
Surely if the AM conn check out / return code works properly, OC4J's pooling JDBC driver would
pool and not close the socket??
Has anywone gotten JDBC Datasource connections in BC4J to actually be pooled under OC4J??
Since I couldn't get this to work in my early 902 oc4j testing, and now can't get it to work
still under 903 OC4J, either it's my config or BC4J AM's code or OC4J?
Any thoughts on how to figure out what's not configed correctly or has a bug?
Thanks, curt

Data-sources.xml instead of bc4j.xcfg

Please give me some direction on how I can configure my Application Module to use JNDI lookup of my data-sources.xml file instead of using the bc4j.xcfg file. I know there is a way but I need a step by step process to get this done through configuration while developing in the IDE.

Can you please tell how did you solve that. I have similar problem
Kavitha

ConnectionCacheName not read from data-sources.xml

I created a simple web application to test the use of the ConnectionCacheBean (from the jdbc 3.0 examples page). I read through the code and some other articles regarding data sources and noted that you "should" be able to set the connection cache name and caching enabled, as well as failover support, even in oc4j 9.0.4 and 10.1.2. I tried this (at least the first two), and it would NOT set the cache name.
The data-sources.xml entry was the same as in the one documented here:
http://www.oracle.com/technology/tech/java/newsletter/articles/oc4j_data_sources/oc4j_ds.htm
What gives?
Also, I tried to simulate the database going down - I killed all the sessions rather than doing a shutdown, but anyway... even with a connection cache property of validatelogin (i think that's the name) to true, and a refresh of invalid connections (they'd all be invalid if I killed them), it would only reactivate ONE SESSION. If I refreshed ALL Sessions, then it would do 9 of the 10 sessions (10 being my initial cache limit).
Any ideas?
I can post the code if that is an issue.

A response I got back from Frances Zhao regarding the two issues that I experienced was:
Issue#1: Cannot set the connectionCacheName via data-sources.xml
1. This is very likely because of an OC4J bug that affects the actual order of
    setting each <property> specified in data-sources.xml. The connection cache
    in OracleDataSource requires the cache-name property be set after the cache
    is enabled; but OC4J may not always follow this order, causing the name
    to be null. If you really need the cache name, you have to do it in the code
    for now.
Issue#2: Can't refresh the invalid connections
2. These are known issues in the Oracle JDBC driver in both 10.1.0.4 and
    10.2.0.1. The fix for the REFRESH_INVALID case will be in the next
    patch release for both 10.1.x and 10.2.x; the fix for the REFRESH_ALL
    case will come later.

Shared-library in OC4J - load data-sources.xml throws error

H
To share common libraries (framework.jar, JAXB jars, axis.jar, log4j, tibco*.jars)
across application(app1/app2/app3) in the OC4J container.
Currently all these jars are loaded with common jars separately application, a total 3 common
footprints of these jars.
1 - Placed all common jars under $J2EE_HOME/shared-lib folder, updated server.xml in $J2EE_HOME/config.
2 - Connecting Tibco queues using generic JMS resource adapter (connectors - JCA).
3 - Connecting to databases using data-sources.xml.
4 - With following entries in orion-application.xml
<imported-shared-libraries>
<import-shared-library name="my.shared.libraries" max-version="1.0"/>
</imported-shared-libraries> ---> Entry 1
<connectors path="oc4j-connectors.xml"/> ---> Entry 2
<data-sources path="data-sources.xml"/> ---> Entry 3
Getting the following error while deploying the code.
Error occurred initializing connectors. Exception is: Exception creating Manage
d DataSource ConnectorPropertySet. Exception: Error setting up resource adapter
for embedded resource archive inside application 'deployGood1'. ManagedConnecti
onFactory implementation class 'oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl
' cannot be set up: Error setting JavaBean property 'managedDataSourceConfigXML'
for ManagedConnectionFactory class 'oracle.oc4j.sql.spi.ManagedConnectionFactor
yImpl for embedded resource archive inside application 'deployGood1'. Exception
is: java.lang.reflect.InvocationTargetException
However orion-application.xml
Option A
Entry 1 (imported-shared-libraries)
Entry 2 (connectors)
Works perfectly fine - however the Service complains of not finding the datasource JNDI
5 - If all jars are loaded separately with each application
With following entries in orion-application.xml
<library path="C:/soft/jar/framework.jar" />
<library path="C:/soft/jar/log4j-1.2.14.jar" />
<library path="C:/soft/jar/axis.jar"/>
<library path="C:/soft/jar/commons-discovery-0.2.jar"/>
<library path="C:/soft/jar/commons-logging-1.0.4.jar"/>
<library path="C:/soft/jar/fscontext.jar"/>
<library path="C:/soft/jar/gjra.jar"/>
<library path="C:/soft/jar/jax-qname.jar"/>
<library path="C:/soft/jar/jaxb-api.jar"/>
<library path="C:/soft/jar/jaxb-impl.jar"/>
<library path="C:/soft/jar/jaxb-libs.jar"/>
<library path="C:/soft/jar/jaxb-xjc.jar"/>
<library path="C:/soft/jar/jaxrpc.jar"/>
<library path="C:/soft/jar/jmxri.jar"/>
<library path="C:/soft/jar/jmxtools.jar"/>
<library path="C:/soft/jar/namespace.jar"/>
<library path="C:/soft/jar/providerutil.jar"/>
<library path="C:/soft/jar/relaxngDatatype.jar"/>
<library path="C:/soft/jar/saaj.jar"/>
<library path="C:/soft/jar/tibcrypt.jar"/>
<library path="C:/soft/jar/tibjms.jar"/>
<library path="C:/soft/jar/tibjmsadmin.jar"/>
<library path="C:/soft/jar/tibjmsapps.jar"/>
<library path="C:/soft/jar/tibrvjms.jar"/>
<library path="C:/soft/jar/wsdl4j-1.5.1.jar"/>
<library path="C:/soft/jar/wss4j-1.5.2.jar"/>
<library path="C:/soft/jar/xercesImpl.jar"/>
<library path="C:/soft/jar/xmlsec-1.4.0.jar"/>
<library path="C:/soft/jar/xsdlib.jar"/> -------> Entry 1
<connectors path="oc4j-connectors.xml"/> ---> Entry 2
<data-sources path="data-sources.xml"/> ---> Entry 3
This configuration works perfectly fine as expected, but this configuration defeats the
purpose of shared-library
Thanks
sunder

H
To share common libraries (framework.jar, JAXB jars, axis.jar, log4j, tibco*.jars)
across application(app1/app2/app3) in the OC4J container.
Currently all these jars are loaded with common jars separately application, a total 3 common
footprints of these jars.
1 - Placed all common jars under $J2EE_HOME/shared-lib folder, updated server.xml in $J2EE_HOME/config.
2 - Connecting Tibco queues using generic JMS resource adapter (connectors - JCA).
3 - Connecting to databases using data-sources.xml.
4 - With following entries in orion-application.xml
<imported-shared-libraries>
<import-shared-library name="my.shared.libraries" max-version="1.0"/>
</imported-shared-libraries> ---> Entry 1
<connectors path="oc4j-connectors.xml"/> ---> Entry 2
<data-sources path="data-sources.xml"/> ---> Entry 3
Getting the following error while deploying the code.
Error occurred initializing connectors. Exception is: Exception creating Manage
d DataSource ConnectorPropertySet. Exception: Error setting up resource adapter
for embedded resource archive inside application 'deployGood1'. ManagedConnecti
onFactory implementation class 'oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl
' cannot be set up: Error setting JavaBean property 'managedDataSourceConfigXML'
for ManagedConnectionFactory class 'oracle.oc4j.sql.spi.ManagedConnectionFactor
yImpl for embedded resource archive inside application 'deployGood1'. Exception
is: java.lang.reflect.InvocationTargetException
However orion-application.xml
Option A
Entry 1 (imported-shared-libraries)
Entry 2 (connectors)
Works perfectly fine - however the Service complains of not finding the datasource JNDI
5 - If all jars are loaded separately with each application
With following entries in orion-application.xml
<library path="C:/soft/jar/framework.jar" />
<library path="C:/soft/jar/log4j-1.2.14.jar" />
<library path="C:/soft/jar/axis.jar"/>
<library path="C:/soft/jar/commons-discovery-0.2.jar"/>
<library path="C:/soft/jar/commons-logging-1.0.4.jar"/>
<library path="C:/soft/jar/fscontext.jar"/>
<library path="C:/soft/jar/gjra.jar"/>
<library path="C:/soft/jar/jax-qname.jar"/>
<library path="C:/soft/jar/jaxb-api.jar"/>
<library path="C:/soft/jar/jaxb-impl.jar"/>
<library path="C:/soft/jar/jaxb-libs.jar"/>
<library path="C:/soft/jar/jaxb-xjc.jar"/>
<library path="C:/soft/jar/jaxrpc.jar"/>
<library path="C:/soft/jar/jmxri.jar"/>
<library path="C:/soft/jar/jmxtools.jar"/>
<library path="C:/soft/jar/namespace.jar"/>
<library path="C:/soft/jar/providerutil.jar"/>
<library path="C:/soft/jar/relaxngDatatype.jar"/>
<library path="C:/soft/jar/saaj.jar"/>
<library path="C:/soft/jar/tibcrypt.jar"/>
<library path="C:/soft/jar/tibjms.jar"/>
<library path="C:/soft/jar/tibjmsadmin.jar"/>
<library path="C:/soft/jar/tibjmsapps.jar"/>
<library path="C:/soft/jar/tibrvjms.jar"/>
<library path="C:/soft/jar/wsdl4j-1.5.1.jar"/>
<library path="C:/soft/jar/wss4j-1.5.2.jar"/>
<library path="C:/soft/jar/xercesImpl.jar"/>
<library path="C:/soft/jar/xmlsec-1.4.0.jar"/>
<library path="C:/soft/jar/xsdlib.jar"/> -------> Entry 1
<connectors path="oc4j-connectors.xml"/> ---> Entry 2
<data-sources path="data-sources.xml"/> ---> Entry 3
This configuration works perfectly fine as expected, but this configuration defeats the
purpose of shared-library
Thanks
sunder

Data-source.xml - BaseResourceException - two phase commit

Hi,
I am seeing the following exception.   Please let me know how to fix this.
thanks
Sunita
com.sap.engine.services.connector.exceptions.BaseResourceException: The resource "xxx" does not support two-phase commit and cannot be enlisted in the current transaction, because another non supporting two-phase commit resource is already enlisted for component "webContainer/applications/JavaEE/YY-TPRO/YYr-TPRO" in application "JavaEE/YY-TPRO". Only one of the enlisted resources is allowed to be non two-phase commit compliant.
I am using JDBC 1.x datasource, and the .xml looks like this:
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE data-sources SYSTEM 'data-sources.dtd'>
<data-sources>
<application-name>JavaEE/yy-TPRO</application-name>
<data-source>
    <data-source-name>xxx</data-source-name>
    <alias>jdbc/xxyyDB/TPRO</alias>
    <driver-name>OracleThin</driver-name>
    <init-connections>1</init-connections>
    <max-connections>20</max-connections>
    <max-time-to-wait-connection>60</max-time-to-wait-connection>
    <sql-engine>vendor_sql</sql-engine>
    <jdbc-1.x>
      <driver-class-name>oracle.jdbc.driver.OracleDriver</driver-class-name>
      <url>jdbc:oracle:thin:@sol-mercury:1521:hermes</url>
      <user-name>abcd</user-name>
      <password>abcd</password>
    </jdbc-1.x>
</data-source>
</data-sources>

HI,
Thanks for the response, I already went through these threads.
My exception seems to be related to this - Problem with connection sharing if J2EE transaction is running
and suggested solutions seems to be:
The problem is caused when there is an inappropriate attempt to open a second connection in an active JTA transaction. There is either an attempt to get a second connection from an un-shareable non-XA DataSource or an attempt to get it from another non-XA DataSource. You have to:
●     Use no more than one connection from this data source while the JTA transaction is active or
●     Declare the data source as shareable, depending on your application logic.
Question is, How can I make data source as shareable??
This application worked fine in JBoss, weblogic and now we are trying to port it to NetWeaver.
Is any of the above options are configurable in data-sources.xml?
Thanks for your guidance and response.
Surekha

[HELP] data-sources.xml on META-INF for deployment

Hello,
I'm having a problem in the configuration of POOL OF CONNECTIONS, I created the file and data-sources.xml orion-application.xml, and I am not able to add the same folder META-INF when I create the deploy the application (EAR). What can I do for the time that I generate the deploy the files have to go to the right folder.
Thank now ...
I am using:
JDeveloper 10.1.3.3

If application is to run on embedded OC4J, a EAR file is not required.
1. Create a datasource, either declaratively in the data-sources.xml file or in the Connections Navigator or in the Global/Project DataSources.
2. Specify the data source in the application.
3. Run the application in the embedded OC4J.

[HELP] data-sources.xml on META-INF for deployment - Jdev

Hello,
I'm having a problem in the configuration of POOL OF CONNECTIONS, I created the file and data-sources.xml orion-application.xml, and I am not able to add the same folder META-INF when I create the deploy the application (EAR). What can I do for the time that I generate the deploy the files have to go to the right folder.
Thank now ...
I am using:
JDeveloper 10.1.3.3

If application is to run on embedded OC4J, a EAR file is not required.
1. Create a datasource, either declaratively in the data-sources.xml file or in the Connections Navigator or in the Global/Project DataSources.
2. Specify the data source in the application.
3. Run the application in the embedded OC4J.

Problem with embedded data-sources.xml and custom UserManager

Hi all,
Our application uses a custom UserManager, which is basically extended from the JDBC UserManager, declared as follows in orion-application.xml:
     <user-manager class="com.infocorpnow.a2g.security.oracle.A2GUserManager">
          <property name="table" value="pos.users" />
          <property name="userNameField" value="username" />
          <property name="passwordFiled" value="password" />
          <property name="dataSource" value="jdbc/A2GDS" />
          <property name="groupMemberShipTableName" value="pos.user_roles" />
          <property name="groupMemberShipGroupFieldName" value="role_name" />
          <property name="groupMemberShipUserNameFieldName" value="login_id" />
     </user-manager>
Since we want to be able to deploy the application several times on the application server, and therefore have each deployment of the ear point to its own datasource (i.e. its own local "A2GDS"), we've found out how to embed data-sources.xml inside the EAR file we're deploying, and modify the orion-application.xml as follows:
     <data-sources path="./data-sources.xml" />
And then place data-sources.xml in the same meta-inf folder as the orion-application.xml.
This has worked fine when deploying to the standalone OC4J.
Now when I try to deploy the exact same EAR file in Oracle 9iAS, and I get to the User Manager screen, the Custom User Manager does not show up correctly. It did show up prior to me embedding the data-sources.xml. Please help? This is fairly urgent.
Thanks
Jason

I should also mention I'm using the Java Edition of 9iAS R2 (9.0.3 container) on Solaris.

How to make JDev leave out data-sources.xml

Greetings
I would like to have jdeveloper leave out data-sources.xml. I have my test server setup with all the data-sources so this isn't needed. All it does is create bunches of data sources on my server then I go in and delete them.
Is there a way somewhere in jdeveloper or my deploy profiles were I can tell it to leave this file out so it just uses the ones I have already setup on the server?
thanks
troy

I think you can control this by going to tool->Embedded OC4J Preferences->Data sourcesI think the original author meant to ask for a way to exclude data-sources.xml when deploying to an external application server.
So far the only way I've found out to work is to manually blank the 'dataSourcesPath' field in "Configure Application" dialog before actual deployment takes place.

OC4J data-source.xml other data base like postgresql

Hi i need to use a DataSource in OC4J with other database (any), i am setting the data-source.xml like:
<\datasource
class="com.evermind.sql.DriverManagerDataSource"
name="DSPropiedades" location="jdbc/DSPropiedadesCoreDS"
xa-location="jdbc/xa/DSPropiedadesXADS"
ejb-location="jdbc/DSPropiedades"
connection-driver="com.borland.datastore.jdbc.DataStore"
username="sample"
password="sample"
url="jdbc:borland:dslocal:D:/seguridaddb/seguridad.jds"
inactivity-timeout="300"
/>
and i had put the database.jar in the OC4j directory's
D:\ora10i\jdbc\lib
D:\ora10i\j2ee\home\lib
D:\ora10i\lib
but i always obtain the same error
Error initializing data-source 'jdbc/DSPropiedadesCoreDS': DriverManagerDataSource Driver 'com.borland.datastore.jdbc.DataStore' not found

Liliana,
From the [lack of] information you have posted, I am assuming you are using OC4J stand-alone version 10g -- but I'm not sure because I couldn't find any of those details in your post. It always helps to include version and platform information.
If my assumption is correct, then the default location for third-party JAR files (including your JDBC driver) is the
"j2ee/home/applib"
subdirectory of the OC4J installation. For example, on my Windows XP machine (again, I couldn't see what platform you are using, so I am assuming it is also Windows), the actual path is:
C:\OC4J_10_0_3\j2ee\home\applib
If you want to see other examples of "data-sources.xml" files (apart from the one that comes with OC4J), try searching the following Web sites:
http://www.orionserver.com
http://www.orionsupport.com
http://kb.atlassian.com
Good Luck,
Avi.

rib-rms /application-deployments/rib-rms/data-sources.xml

Hi,
Support note 1314377.1 "Call To GetNextPublisher Service In RIB-RMS Fails With "Unable To Publish Message To JMS" Exception" says:
Solution
"The issue was resolved with the below suggestion:
Modify $ORACLE_HOME/j2ee/<rib-rms>/application-deployments/rib-rms/data-sources.xml to have below entries and bounce the <rib-rms> instance:
min-connections="10"
max-connections="20"
initial-limit="5"
used-connection-wait-timeout="10"
inactivity-timeout="10"
login-timeout="0"
connection-retry-interval="1"
max-connect-attempts="3"
validate-connection="true"
validate-connection-statement="select count(*) from dual"
num-cached-statements="10"
time-to-live-timeout="-1"
abandoned-connection-timeout="6"
disable-server-connection-pooling="false"
property-check-interval="2"
lower-threshold-limit="20" "
However it is not at all clear to me how to enter these elements in the data-sources.xml XML structure.
I have searched OTN and Google for it but can't find a good/complete reference. E.g. http://download.oracle.com/docs/cd/B25016_08/doc/dl/web/B14012_02/datasrc.htm documents some of the above attributes, but not all.
Not all attributes go into the same XML element in data-sources.xml.
Can someone give an example of how to set this?
Thanks,
Erik
Edited by: ErikYkema on Jul 19, 2011 4:29 PM

Hi Erik,
All of these are attributes to <connection-pool> tag.
So it will ideally look like
<connection-pool name="connectionPool" min-connections="10" max-connections="20" >
<connection-factory factory-class="oracle.jdbc.pool.OracleDataSource"      user="RPM_ADAPTOR_AQ"
               password="RPM_ADAPTOR_AQ"
               url="jdbc:oracle:thin:@//+hostname+/RMS131K" >
          </connection-factory>
Please modify the same are restart rib oc4j instance.
Regards,
PPS
Edited by: ppskannan on Jul 19, 2011 8:19 PM
Edited by: ppskannan on Jul 19, 2011 8:21 PM

Factory-class in data-sources.xml managed-data-source

OracleAS_1\j2ee\home\config has
data-sources.xml
Using managed-data-source.
For connection-pool, connection-factory factory-class If I use OracleDriver instead of OracleDataSource, what difference would it have? In terms of performance?
Thanks.

Oops, a case issue...
class="oracle.jdbc.pool.Oracle[b]OCIConnectionPool"

Problems with OC4J EJB deployment and the data-sources.xml file

I am running 2 Windows 2000 Machines one with the 8.1.7 database another with iAS 1.0.2.2.1 and OC4J.
I am trying to deploy a 3rd party EJB-based application whic seems to have deployed successfully except when I try to test the EJB deployment via a jsp it can't connect to the database, giving the error:
1/16/02 4:52 PM VerySimple: Servlet error
java.lang.NoClassDefFoundError: com.netexp.user.UserManagerHome
at com.netexp.beans.BeanHelper.class$(Unknown Source)
at com.netexp.beans.BeanHelper.getUserManagerBean(Unknown Source)
at /very_simple.jsp._jspService(/very_simple.jsp.java:48) (JSP page line 27)
at com.orionserver[Oracle9iAS (1.0.2.2.1) Containers for J2EE].http.OrionHttpJspPage.service(OrionHttpJspPage.java:54)
at com.evermind[Oracle9iAS (1.0.2.2.1) Containers for J2EE].server.http.HttpApplication.serviceJSP(HttpApplication.java:5459)
at com.evermind[Oracle9iAS (1.0.2.2.1) Containers for J2EE].server.http.JSPServlet.service(JSPServlet.java:31)
at com.evermind[Oracle9iAS (1.0.2.2.1) Containers for J2EE].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:508)
at com.evermind[Oracle9iAS (1.0.2.2.1) Containers for J2EE].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:177)
at com.evermind[Oracle9iAS (1.0.2.2.1) Containers for J2EE].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:576)
at com.evermind[Oracle9iAS (1.0.2.2.1) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:189)
at com.evermind[Oracle9iAS (1.0.2.2.1) Containers for J2EE].util.ThreadPoolThread.run(ThreadPoolThread.java:62)
I try to update the file using the installdatasource switch thus:
C:\Oracle\iSuites\j2ee\home>java -jar admin.jar ormi://localhost admin adm_pwd -application apptricityII -installDataSource -jar %ORACLE_HOME%\jdbc\lib\classes12.zip -url jdbc:oracle:thin:@db_host.unitas.com:1521:db_name -connectionDriver oracle.jdbc.driver.OracleDriver -location jdbc/pool/OracleDataSource -username scott -password tiger
And get the following error:
Exception passing by from remote server: java.lang.InstantiationException: No class specified for jdbc/pool/OracleDataSource
java.lang.InstantiationException: No class specified for jdbc/pool/OracleDataSource
<<no stack trace available>>
Error adding source: No class specified for jdbc/pool/OracleDataSource
Please advise.
I have followed the instructions in 'EJB Primer' and 'Using Oracle9iAS Containers for J2EE' to no avail. And I can't find any meaningfull data-sources.xml samples. I have been struggling with this for some time.
Is there any other file, do I need to bind anything?
I'd appreciate your assistance.
Thank you
Louiza

Hi Louiza,
Show us your web.xml and ejb-jar.xml files as well as your
data-source.xml file.
Thanks,
Avi.

Use of cache_scheme in data-sources.xml

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