Using Datasources with Weblogic 7.2

Hi everyone,
I am using Weblogic 7.2 with Db2 8.1 fp3(Type 4 Drivers). I am wanting
to set up a Datasource that would allow my application to connect to
DB2 using the JNDI lookup for that data-source.
My question is: what additions/changes I need to make to config.xml in
order to set this up.Looking at the Websphere Admin Doc, it seems to
me that I need to atleast add 2 elements to my domain in config.xml:
1. JDBCConnectionPool
2. JDBCDataSource(and link it to the above pool)
I have previously set-up datasources on WAS 5.0. What is confusing me
w.r.t Weblogic is that there seems to be no way to specify the
implementing class for the DataSource. e.g. WAS5.0 allows you to
specify the implementationClassName of the
datasource(com.ibm.db2.jcc.DB2ConnectionPoolDataSource in my case) while
defining the DataSource.JDBCConnectionPool element in Weblogic does
have an attribute called "DriverName" but per the documentation it
should be set to an implementor of java.sql.Driver interface: there
seems to be no way to set an implementor of javax.sql.DataSource
anywhere.
Could anyone please shed some light on how to set this up?
Thanks much in advance,
Sachin

Mitesh,
Many thanks for the reply. If you don't mind, I have a couple of follow-up questions
for you.
1> Does this mechanism work with Type 4 Pure Java Drivers?
e.g. if I specified the connection pool as
<JDBCConnectionPool DriverName="com.ibm.db2.jcc.DB2ConnectionPoolDataSource" Name="IBM-db2"
Password="MYPASSWORD" Properties="user=USERNAME;DatabaseName=DATABASE" Targets="MYSERVER"
TestTableName="SQL SELECT COUNT(*) FROM SYSIBM.SYSTABLES" URL="jdbc:db2:DATABASE"/>
==> I changed the DriverName to "com.ibm.db2.jcc.DB2ConnectionPoolDataSource"
which
is what I believe is the Type-4 version
2> Setting the DriverName to a javax.sql.DataSource extension seems to suggest
that the documentation in the "BEA Server Configuration Reference" guide is incorrect:
-- For the DriverName attribute of the Connection Pool, the guide says that "DriverName
must be the name of a class that implements the java.sql.Driver interface"
Thanks again
Sachin
Mitesh Patel <[email protected]> wrote:
<JDBCConnectionPool DriverName="COM.IBM.db2.jdbc.DB2XADataSource"
Name="IBM-db2-xa"
Password="MYPASSWORD"
Properties="user=USERNAME;DatabaseName=DATABASE"
Targets="MYSERVER"
TestTableName="SQL SELECT COUNT(*) FROM SYSIBM.SYSTABLES"
URL="jdbc:db2:DATABASE"/>
<JDBCConnectionPool DriverName="COM.IBM.db2.jdbc.app.DB2Driver"
Name="IBM-db2"
Password="MYPASSWORD"
Properties="user=USERNAME;DatabaseName=DATABASE"
Targets="MYSERVER"
TestTableName="SQL SELECT COUNT(*) FROM SYSIBM.SYSTABLES"
URL="jdbc:db2:DATABASE"/>
Then setup your datasource using one of this connection pools in your
config.xml. Also, make sure your driver zip files are in the classpath.
Thanks,
Mitesh
Sachin Arora wrote:
Hi everyone,
I am using Weblogic 7.2 with Db2 8.1 fp3(Type 4 Drivers). I am wanting
to set up a Datasource that would allow my application to connect to
DB2 using the JNDI lookup for that data-source.
My question is: what additions/changes I need to make to config.xmlin
order to set this up.Looking at the Websphere Admin Doc, it seems to
me that I need to atleast add 2 elements to my domain in config.xml:
1. JDBCConnectionPool
2. JDBCDataSource(and link it to the above pool)
I have previously set-up datasources on WAS 5.0. What is confusingme
w.r.t Weblogic is that there seems to be no way to specify the
implementing class for the DataSource. e.g. WAS5.0 allows you to
specify the implementationClassName of the
datasource(com.ibm.db2.jcc.DB2ConnectionPoolDataSource in my case)while
defining the DataSource.JDBCConnectionPool element in Weblogic does
have an attribute called "DriverName" but per the documentation it
should be set to an implementor of java.sql.Driver interface: there
seems to be no way to set an implementor of javax.sql.DataSource
anywhere.
Could anyone please shed some light on how to set this up?
Thanks much in advance,
Sachin

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Send this to:
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If you do not know if upgrade or not, have a look here :
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Sergi
"Sudhir Babu" <[email protected]> wrote:
>
Hi Sergi,
Thanks a lot for the class file, I figured out what the problem was. Actually
the
database version I was working with was 8.0.6.0. The Oracle driver doesn't
work with
this but the JDriver worked. This is the output of running CheckDriver..
DatabaseProductName : Oracle
DatabaseProductVersion : Oracle8 Enterprise Edition Release 8.0.6.0.0 -
Production
With the Partitioning and Objects options
PL/SQL Release 8.0.6.0.0 - Production
DriverName : Oracle JDBC driver
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version
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database.
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DatabaseProductName : Oracle
DatabaseProductVersion : Oracle8i Enterprise Edition Release 8.1.7.1.0 -
Production
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JServer Release 8.1.7.1.0 - Production
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Sudhir.
"Sergi Vaz" <[email protected]> wrote:
Hi Sudhir ,
JDriver works well, you can work with it.
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is the
output ?
On which platform are you running your WLSP2 ?
Thanks
Sergi
"Sudhir Babu" <[email protected]> wrote:
Hi Sergi,
I just checked the things you mentioned. The connection pool starts correctly
without
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to
PUBLIC.
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and
it works perfect without any issue. The only consideration is that itis
a Type 2
Driver and needs to have the Oracle Client installed. But right now Ido
have it
installed on the same machine.
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good idea
to go with it ?
Thanks,
Sudhir.
"Sergi Vaz" <[email protected]> wrote:
Hi Sudhir,
does your connection pool start correctly ?
Check the setup of your Oracle server too:
1) grant select on DBA_PENDING_TRANSACTIONS table to PUBLIC
2) package JAVA_XA installed (with grant execute to PUBLIC)
Sergi
"Sudhir Babu" <[email protected]> wrote:
Hi Sergi,
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and put
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fixed
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"Sergi Vaz" <[email protected]> wrote:
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DriverClassname - oracle.jdbc.xa.client.OracleXADataSource
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JNDIName - myXADS
PoolName - myXAPool
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TXDataSource
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java.sql.SQLException: XA error: XAER_RMERR : A resource manager errorhas
occured in the transaction branch start() failed on resource 'myXAPool'
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I am using datasource to connect to the weblogic 9.2 connection pool.
My specific use case is this.
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call.setProcedureName(CVeITDAOConstants.INSERT_PING);
call.addNamedArgumentValue("para1", arr_ORCL );
dbquery.setCall(call);
--release connection in the finally block
finally
clientSession.release();
dbconnection.close();
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Hi.
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          Michael
          Kumar Ampani wrote:
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Hi.
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          Michael
          Kumar Ampani wrote:
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          BEA Support

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import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Hashtable;
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import javax.naming.InitialContext;
import javax.naming.NamingException;
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When running the java app in the debugger, the objects
dataServiceDoc, dog , and dObj all have
the correct type. When running the web service in the debugger, the objects are all of type
DataObjectGeneral, thus causing the cast error.

Any help will be greatly appreciated!

Thanks.

package services;

import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import weblogic.jndi.Environment;
import com.bea.dsp.RequestConfig;
import com.bea.dsp.das.DASResult;
import com.bea.dsp.das.DataAccessServiceFactory;
import com.bea.dsp.das.PreparedExpression;
import com.bea.sdo.impl.data.DataObjectGeneral;
import commonj.sdo.DataObject;

@WebService

public class MyService

private final static String DS_URL = "t3://localhost:7001";

@WebMethod

public String testMethod2()

StringBuilder result = new StringBuilder();

try

// Get the initial context to the WebLogic Server passing in user credentials

Context ctx = getInitialContext(DS_URL,"weblogic", "weblogic");

RequestConfig reqConfig = new RequestConfig();

reqConfig.enableFeature(RequestConfig.RETURN_DATA_SERVICE_AUDIT);

reqConfig.enableFeature(RequestConfig.RETURN_AUDIT_PROPERTIES);

reqConfig.setStringArrayAttribute(RequestConfig.RETURN_AUDIT_PROPERTIES,
new String[] { "common", "query" });;

String dspDataSpace = "MY_DS";

String adhoc = createQuery();

PreparedExpression pe = DataAccessServiceFactory.prepareExpression(ctx, dspDataSpace, adhoc);

DASResult<Object> dasResult = pe.executeQuery(reqConfig);

int i = 0;

int N = 100;

Long[] ids = new Long[N];

while (dasResult.hasNext() && i<N)

Object dataServiceDoc = dasResult.next();

// Convert Object to a Data Object

DataObjectGeneral dog = (DataObjectGeneral) dataServiceDoc;

DataObject dObj = dog.getRootObject();

// Cast the Data Object to the SDO Type (MyDataType)

MyDataType p = (MyDataType) dObj;

i++;


catch (Exception e)

result.append(e);


return result.toString();


private static InitialContext getInitialContext(String url, String username, String password) throws NamingException

Environment env = new Environment();

env.setProviderUrl(url);

env.setInitialContextFactory("weblogic.jndi.WLInitialContextFactory");

env.setSecurityPrincipal(username);

env.setSecurityCredentials(password);

return new InitialContext(env.getInitialContext().getEnvironment());


public static void main(String [] args)

MyService ms = new MyService();

System.out.println(ms.testMethod2());




test

Using JNI with weblogic JSP & Servlets

I want to use native libraries from JSP and Servlets.
 Everything works fine befire redeploying.
 After redeploying there is an error:
 Servlet failed with Exception
 java.lang.UnsatisfiedLinkError: Native Library D:\WINNT\system32\XXXX.dll
 already loaded in another classloader
 at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1346)
 at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1306)
 at java.lang.Runtime.loadLibrary0(Runtime.java:749)
 at java.lang.System.loadLibrary(System.java:820)
 at HelloWorld.<clinit>(HelloWorld.java:9)
 at NativeTestServlet.doGet(NativeTestServlet.java:31)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 :208)
 at
 weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
 ntext.java:1127)
 at
 weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
 :1529)
 at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
 at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
 >
 Can anybody solve it?
 Best wishes, Oleg.


Java will not allow us to reload any class that is dependent on a native
 library. I suggest that any classes that depend on native code should be
 put in the system classpath. If you change these classes or the native
 library you will need to restart your server.
 Sam
 "Jennifer Yin" <[email protected]> wrote in message
 news:[email protected]...
 > Oleg-
 >
 > I'm having the exact same problem and was wondering how you fixed it. I
 ran
 > javah -jni <classname> to verify the correct method call and have also
 verified
 > that the library file is included in the system path.
 >
 > Any other suggestions?
 >
 > Jennifer
 >
 > Oleg wrote:
 >
 > > I want to use native libraries from JSP and Servlets.
 > > Everything works fine befire redeploying.
 > > After redeploying there is an error:
 > >
 > > Servlet failed with Exception
 > > java.lang.UnsatisfiedLinkError: Native Library
 D:\WINNT\system32\XXXX.dll
 > > already loaded in another classloader
 > > at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1346)
 > > at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1306)
 > > at java.lang.Runtime.loadLibrary0(Runtime.java:749)
 > > at java.lang.System.loadLibrary(System.java:820)
 > > at HelloWorld.<clinit>(HelloWorld.java:9)
 > > at NativeTestServlet.doGet(NativeTestServlet.java:31)
 > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
 > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 > > at
 > >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 > > :208)
 > > at
 > >
 weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
 > > ntext.java:1127)
 > > at
 > >
 weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
 > > :1529)
 > > at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
 > > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
 > > >
 > >
 > > Can anybody solve it?
 > >
 > > Best wishes, Oleg.
 >

Using Datasources with Weblogic 7.2

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