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From Pid <...@pidster.com>
Subject Re: Universal connection pooling Type Casting problem
Date Tue, 20 Apr 2010 08:36:58 GMT
On 20/04/2010 03:40, Auser99 wrote:
> 
> Does anyone have a solution for this. Thanks.
>
> au

Yes. They were provided in other answers, already.
Check the archives.


p

> SivaKumarl wrote:
>>
>> Hi Friends, 
>>           I am using universal connection pooling for connecting database
>> , while configuring manually i able to connect to database,but while
>> configuring in server.xml i am unable to cast the datasource i am getting
>> the class cast exception, please find the below configuration and error
>> details , correct me if i configured wrong .I am using Tomcat 6.0
>>
>> server.xml configurartion
>>
>>  <Context docBase="UCP" path="/UCP" reloadable="true"
>> source="org.eclipse.jst.jee.server:UCP"> 
>>       <Resource auth="Container" description="DataSource Reference"
>> driverClassName="oracle.jdbc.OracleDriver" 
>>                         maxActive="4" maxIdle="2" maxWait="5000"
>> name="jdbc/oracleds" factory="oracle.jdbc.pool.OracleDataSource" 
>>                         username="branch" password="branch"
>> type="oracle.ucp.jdbc.PoolDataSourceImpl" 
>>                         url="jdbc:oracle:thin:@//192.168.203.12:1521/ycs"  
>> validationQuery="select 1 from dual"/> 
>>       </Context> 
>>
>> Error Details
>> javax.naming.NamingException: Could not create resource factory instance
>> [Root exception is java.lang.ClassCastException:
>> oracle.jdbc.pool.OracleDataSource cannot be cast to
>> javax.naming.spi.ObjectFactory] 
>>         at
>> org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:102)

>>         at
>> javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) 
>>         at org.apache.naming.NamingContext.lookup(NamingContext.java:793) 
>>         at org.apache.naming.NamingContext.lookup(NamingContext.java:140) 
>>         at org.apache.naming.NamingContext.lookup(NamingContext.java:781) 
>>         at org.apache.naming.NamingContext.lookup(NamingContext.java:153) 
>>         at TestServlet.doGet(TestServlet.java:37) 
>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

>>         at
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

>>         at
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

>>         at
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

>>         at
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) 
>>         at
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
>>         at
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

>>         at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) 
>>         at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) 
>>         at
>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)

>>         at
>> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) 
>>         at java.lang.Thread.run(Thread.java:619) 
>> Caused by: java.lang.ClassCastException: oracle.jdbc.pool.OracleDataSource
>> cannot be cast to javax.naming.spi.ObjectFactory 
>>         at
>> org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:98)

>>         ... 20 more 
>>
>>
>> Java code for retrieving connection
>>
>> Context initContext; 
>>                 try { 
>>                         initContext = new InitialContext(); 
>>                 
>>                 Context envContext  =
>> (Context)initContext.lookup("java:/comp/env"); 
>>                 DataSource ds =
>> (DataSource)envContext.lookup("jdbc/oracleds"); 
>>                 } catch (NamingException e) { 
>>                         // TODO Auto-generated catch block 
>>                         e.printStackTrace(); 
>>                 } 
>>
>>
>>
>> Thanks in Advance 
>> Siva kumar
>>
>>
> 



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