PHANI BHUSHAN REDDY VEMI REDDY 
[https://community.jboss.org/people/vphanibhushanreddy] created the discussion

"Re: What means datasource attribute "jta" in Jboss 7.1.Final config?"

To view the discussion, visit: https://community.jboss.org/message/730665#730665

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JPA implementations have the choice of managing transactions themselves 
(RESOURCE_LOCAL), or having them managed by the application server's JTA 
implementation. In most cases, RESOURCE_LOCAL is fine. This would use basic 
JDBC-level transactions. The downside is that the transaction is local to the 
JPA persistence unit, so if you want a transaction that spans multiple 
persistence units (or other databases), then RESOURCE_LOCAL may not be good 
enough.

JTA is also used for managing transactions across systems like JMS and JCA, but 
that's fairly exotic usage for most of us. To use JTA, you need support for it 
in your application server, and also support from the JDBC driver.

In your current configuration, its JTA type datasource.
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