Does EntityManager use the same database connection in a transaction?

Hi All,
I have a MDB in which I have created a EntityManager and began a transaction. I have passed this entity manager to all my DAO's via a standard setter method. Now I am wondering if this entity manager uses the same connection all the time until it's commited?
If not how does it work?
Thank you,
K.

Hi,
I am injecting the entitymanager into my MDB but it's throwing the JTATransaction required when I am trying to execute any native query? So I have removed the injection and created through the entitymanager factory. Now I am wondering whether it will use the same connection object during one transaction?
Here is the code which is throwing the JTATransaction required exception...
* entityManager.
@PersistenceContext(unitName = "myPersistenceUnit1")
private EntityManager entityManager;
<persistence-unit name="myPersistenceUnit1">
<jta-data-source>jdbc/MySessionDS
</jta-data-source>
<properties>
<property name="toplink.logging.level" value="FINEST" />
</properties>
</persistence-unit>

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Best Regards
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Hi John,
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Why yahoo/gmail retrieval and facebook app so so slow when in WIFI. But using the internet to check for emails and facebook is fast using the same WIFI connection??

Hi SandyS_VZW,
Yes tried resetting the wifi connection and problem still persist.
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Greetings,
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http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
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http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
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Lawrence Garvin, M.S., MCSA, MCITP:EA, MCDBA
SolarWinds Head Geek
Microsoft MVP - Software Packaging, Deployment & Servicing (2005-2014)
My MVP Profile: http://mvp.microsoft.com/en-us/mvp/Lawrence%20R%20Garvin-32101
http://www.solarwinds.com/gotmicrosoft
The views expressed on this post are mine and do not necessarily reflect the views of SolarWinds.

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Ping has started ...
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: icmp_seq=0 ttl=64 time=1.158 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.941 ms
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64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.971 ms
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64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.894 ms
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--- 192.168.1.1 ping statistics ---
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