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OPENJPA-160. Docs updates. 

git-svn-id: https://svn.apache.org/repos/asf/incubator/openjpa/trunk@513189 13f79535-47bb-0310-9956-ffa450edef68
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Patrick Linskey 2007-03-01 06:43:00 +00:00
parent dc797ab923
commit af1796f17c
2 changed files with 12 additions and 9 deletions
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3
openjpa-project/src/doc/manual/ref_guide_optimization.xml
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@ -574,7 +574,8 @@ collection of results can speed up data loading by orders of magnitude.
</para>
</entry>
<entry colname="desc">
By default, OpenJPA's EntityManagers use finalizers to ensure that resources
Outside of a Java EE 5 application server or other JPA persistence container,
OpenJPA's EntityManagers use finalizers to ensure that resources
get cleaned up. If you are properly managing your resources, this finalization
is not necessary, and will introduce unneeded synchronization, leading to
scalability problems. You can disable this protective behavior by setting the

18
openjpa-project/src/doc/manual/ref_guide_runtime.xml
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@ -119,14 +119,16 @@ and <classname>Broker</classname>s.
</secondary>
</indexterm>
<para>
The default OpenJPAEntityManager implementation automatically closes itself
during instance finalization. This guards against accidental resource leaks
that may occur if a developer fails to explicitly close EntityManagers when
finished with them, but it also incurs a scalability bottleneck, since the
JVM must perform synchronization during instance creation, and since the
finalizer thread will have more instances to monitor. To avoid this overhead,
set the <link linkend="openjpa.BrokerImpl"><literal>openjpa.BrokerImpl</literal>
</link> configuration property to <literal>non-finalizing</literal>.
Outside of a Java EE 5 application server or other JPA persistence container
environment, the default OpenJPAEntityManager implementation automatically
closes itself during instance finalization. This guards against accidental
resource leaks that may occur if a developer fails to explicitly close
EntityManagers when finished with them, but it also incurs a scalability
bottleneck, since the JVM must perform synchronization during instance creation,
and since the finalizer thread will have more instances to monitor. To avoid
this overhead, set the
<link linkend="openjpa.BrokerImpl"><literal>openjpa.BrokerImpl</literal></link>
configuration property to <literal>non-finalizing</literal>.
</para>
</section>
<section id="ref_guide_runtime_broker_extension">