This is what the spec says:
6.2.1.5 jta-data-source, non-jta-data-source
In Java EE environments, the jta-data-source and non-jta-data-source elements
are used to specify the global JNDI name of the JTA and/or non-JTA data source
to be used by the persistence provider. If neither is specified, the deployer
must specify a JTA data source at deployment or a JTA data source must be
provided by the container.
You can file an enhancement request to support adding the value at deployment
(e.g. via 'asadmin deploy' option).
thanks,
-marina
Markus KARG wrote:
> So do I understand it right:
>
> If persistence.xml does not contain jta-data-source then it will be
> using jdbc/__default always? And if I want it to use another source,
> then it MUST contain jta-data-source? Isn't there some "implicit"
> mechanism, e. g. having the persistence.xml's name mapped to a jdbc data
> source of the same name?
>
> Markus
>
> Lance J. Andersen schrieb:
>
>> Markus,
>>
>> the persistence.xml does not have to change unless you want it to change.
>>
>> The JNDI name for the data source being used in the persistence unit
>> within the persistence.xml via
>> <jta-data-source>the-jndi-name-of-jdbc-resource (for ex:
>> jdbc/__default)</jta-data-source> can have the connection pool that
>> it points to changed on the appserver. You can use the admin gui or
>> the CLI command interface.
>>
>> What Cheng showed you below from the entry in the domain.xml is what
>> would change for ASA.:
>>
>> <jdbc-resource enabled="true" jndi-name="jdbc/__default"
>> object-type="user" pool-name="DerbyPool"/>
>>
>>
>> in the line above, you would change the pool-name element value to
>> point to say ASAPool assuming you configured a Connection Pool for SQL
>> Anywhere called ASAPool. So pool-name would change from DerbyPool to
>> ASAPool.
>>
>> Regards
>> Lance
>>
>> Markus KARG wrote:
>>
>>> Cheng,
>>>
>>>> Markus KARG wrote:
>>>>
>>>>> Cheng,
>>>>>
>>>>>> I usually create a jdbc-connection-pool first, then create a
>>>>>> jdbc-resource that references that jdbc-connection-pool. If you
>>>>>> do it in admin gui, it prompts you in each step.
>>>>>>
>>>>>> You can look at the jdbc/__default in domain.xml, just for example,
>>>>>> <jdbc-resource enabled="true" jndi-name="jdbc/__default"
>>>>>> object-type="user" pool-name="DerbyPool"/>
>>>>>> DerbyPool is also defined in domain.xml.
>>>>>>
>>>>>> You can get more help info by running the 2 asadmin commands:
>>>>>> asadmin.bat help create-jdbc-connection-pool
>>>>>> asadmin.bat help create-jdbc-resource
>>>>>
>>>>> That's not the point. I already had set up a Connection pool and a
>>>>> jdbc resource, but the question is: How to tell GF that a specific
>>>>> EJB-module has to be bound to a specific JDBC resource. It is
>>>>> always using the __default resource, but I want it to use a
>>>>> specific resource. How to do that?
>>>>>
>>>> If your question is about how to specify a jta datasource for a
>>>> persistence-unit that resides inside a ejb-jar, you can do so in the
>>>> persistence.xml for this persistence-unit.
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <persistence xmlns="http://java.sun.com/xml/ns/persistence"
>>>> version="1.0">
>>>> <persistence-unit name="xxx">
>>>> <jta-data-source>the-jndi-name-of-jdbc-resource (for ex:
>>>> jdbc/__default)</jta-data-source>
>>>> </persistence-unit>
>>>> </persistence>
>>>
>>> The persistence.xml is part of the original binary, which shall not be
>>> changed by the administrator. There must be a solution other than
>>> modifying the original jar, I think. If not, then this feature is
>>> definitively missing.
>>>
>>> Thanks
>>> Markus
>>
>>
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>