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From Romain Manni-Bucau <rmannibu...@gmail.com>
Subject Re: Apache Ignite initialization before EntityManagerFactory
Date Thu, 27 Sep 2018 19:27:32 GMT
This works, you can also create an ignite resource just to create ignite
instance.

That said, did you try to make your persistence unit lazy? Can make it
working and let you start ignite from your app.

Le jeu. 27 sept. 2018 21:01, Shultz, Dmitry <Dmitry_Shultz@kaltire.com> a
écrit :

> Figured out some way to make sure Ignite is initialized before
> EntityManagerFactory, not sure if it's the right way though. Please let me
> know if I'm doing something conceptually wrong here.
>
> I'm trying to use the  class-name and factory-name (as described here:
> http://tomee.apache.org/application-resources.html) to make sure the
> DataSource is initialized after Ignite.start() is called. The sequence
> problem seems to be resolved, but I'm not sure how to properly manually
> instantiate the JTA managed datasource.
>
> Here is my resources.xml:
>
> <resources>
>
>     <Resource id="myDS" type="javax.sql.DataSource"
> class-name="com.bla.bla.DataSourceFactory" factory-name="create">
>         JdbcDriver   = org.postgresql.Driver
>         JdbcUrl      = jdbc:postgresql://localhost:5432/mydb
>         UserName     = user
>         Password     = test
>         maxActive = 10
>         maxIdle = 10
>         TestOnBorrow = true
>         TestWhileIdle = true
>         TestOnReturn = true
>         ValidationQuery = SELECT 1
>         JtaManaged=true
>     </Resource>
> </resources>
>
>
> Here is my factory method (ofcom.bla.bla.DataSourceFactory):
>
> public Object create() {
>
>         initIgnite();
>
>         BasicManagedDataSource resource = new
> BasicManagedDataSource("myDB");
>         resource.setJdbcDriver("org.postgresql.Driver");
>         resource.setJdbcUrl("jdbc:postgresql://localhost:5432/mydb");
>         resource.setUserName("user");
>         resource.setPassword("test");
>         resource.setTestOnBorrow(true);
>         resource.setTestWhileIdle(true);
>         resource.setTestOnReturn(true);
>         resource.setValidationQuery("SELECT 1");
>
>         return resource;
>     }
>
> BasicManagedDataSource doesn't have the setJtaManaged(), so it's probably
> not a good choice... Also, and I'm seeing this in the log:
>
> 27-Sep-2018 18:26:50.516 WARNING [http-nio-8080-exec-4]
> org.apache.openejb.assembler.classic.Assembler.unusedProperty unused
> property 'JdbcDriver' for resource 'my-app/myDS'
> 27-Sep-2018 18:26:50.516 WARNING [http-nio-8080-exec-4]
> org.apache.openejb.assembler.classic.Assembler.unusedProperty unused
> property 'JdbcUrl' for resource 'my-app / myDS '
> 27-Sep-2018 18:26:50.516 WARNING [http-nio-8080-exec-4]
> org.apache.openejb.assembler.classic.Assembler.unusedProperty unused
> property 'UserName' for resource 'my-app / myDS '
> 27-Sep-2018 18:26:50.516 WARNING [http-nio-8080-exec-4]
> org.apache.openejb.assembler.classic.Assembler.unusedProperty unused
> property 'Password' for resource 'my-app / myDS '
> ...
>
>
> From: Shultz, Dmitry
> Sent: Thursday, September 27, 2018 10:03 AM
> To: users@tomee.apache.org
> Subject: Apache Ignite initialization before EntityManagerFactory
>
> Hi All,
>
> I'm trying to use Apache Ignite as a L2 cache in my app.
>
> Both JPA/Hibernate and Ignite are configured to work together, but I'm not
> sure how to make the Ignite to started before JPA/Hibernate is initialized.
> Right now the war deployment fails when deployer is trying to create
> EntityManagerFactory and can't find the specified (in persistence.xml)
> Ignite instance. Do I have to deploy another app (with Ignite.start() in
> it) before the 'main' app or there is some other way to do it?
>
> Cheers,
> Dmitry
>
>

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