I am not sure I got what you tring to say. 

What is  embedded network server ? 
        When I am creating the datasource in Websphere I have used the 
        
         implementing class as    
"org.apache.derby.jdbc.EmbeddedConnectionPoolDataSource" 
         implementing class for XA as    
"org.apache.derby.jdbc.EmbeddedXADataSource" 
         dataSource helper class as
"com.ibm.websphere.rsadapter.DerbyDataStoreHelper" 
          
         and add derby.jar,derbynet.jar and derbytools.jar to the class
path.             



 "client application could use the client driver" 
        Is this means to use the org.apache.derby.jdbc.ClientDriver ?, but
it is a Derby Network Client driver. At the moment 
I am using org.apache.derby.jdbc.EmbeddedDriver as my client driver. 

-Suraj 


Daniel John Debrunner-2 wrote:
> 
> Suraj Batuwana wrote:
>> Hi All,
>>      I am a derby user but for my application I need some improved version of
>> Derby. 
>>      So I thought of writing to this group.
>>      
>>      For my application I need to access a single Derby database(using
>> Embedded
>> mode) from 
>>              1. Data source( In a Websphere 6.0.2.5)
>>              2. Client application
>>              
>>      But when try to access the database it will throw exceptions like
>> "Caused
>> by: java.sql.SQLException: Failed to start database
>> 'E:\source\database\TestDB'" from a one of the place.
>>      
>>      I know this happens because Embedded, a Derby database can be booted
>> only
>> from a single JVM, In my case ,      it is trying to boot from 2 JVMs(client
>> JVM
>> and server JVM), but when I used the Network mode there is no such an
>> issue.Is there a way future Derby (Embedded mode) version can handle the
>> above issue or It will remain as it is ?
> 
> You can mix embedded and the network server, so in your case the 
> WebSphere could be running embedded with an embedded network server. 
> Then the client application could use the client driver.
> 
> Dan.
> 
> 
> 

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