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Message from discussion Shutting down Ebean
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Alex  
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 More options Oct 18 2009, 11:13 am
From: Alex <alxa...@googlemail.com>
Date: Sun, 18 Oct 2009 08:13:10 -0700 (PDT)
Local: Sun, Oct 18 2009 11:13 am
Subject: Re: Shutting down Ebean
Hi,
no, I'm not running the example application. Well, I've decided to
write a minimalistic howto on start using Ebean, please have a look
at  http://alxa.wikidot.com/ebean-howto-1 for the complete setup.

Below the main code:

public class HelloWorld {
    public static void main(String[] args) {
        // ### Configuration Objects ###
        ServerConfig serverConfig = new ServerConfig();
        DataSourceConfig dataSourceConfig = new DataSourceConfig();

        // ### Configuration Settings ###
        // -> data source
        dataSourceConfig.setDriver("org.h2.Driver");
        dataSourceConfig.setUsername("howtouser");
        dataSourceConfig.setPassword("");
        dataSourceConfig.setUrl("jdbc:h2:db/howto1");

        // -> server
        serverConfig.setName("default");
        serverConfig.setDataSourceConfig(dataSourceConfig);

        //  auto create db if it does not exist
        if(!(new File("db/howto1.h2.db")).exists()  ){
            serverConfig.setDdlGenerate(true);
            serverConfig.setDdlRun(true);
            serverConfig.addClass(Hello.class);
        }

        EbeanServer eServer = EbeanServerFactory.create(serverConfig);

        long id = 3;
        Hello data = eServer.find(Hello.class, id);
        if (data == null) {
            System.out.println("This is the first run, saving
data..");
            eServer.save(new Hello(id, "Hello World!"));
        } else {
            System.out.println(String.format("############\n%s
\n############", data.getMessage()));
        }
        ShutdownManager.shutdown();
    }

}

Thanks in advance

alx

On 18 Okt., 02:50, Rob Bygrave <robin.bygr...@gmail.com> wrote:

> When running the example application you should not need to shutdown H2.

> It's actually not clear to me what you are doing and what your issue is ...
> but I'll guess and say you are running the example application ... one of
> the classes with a main method... and it is hanging / not terminating?

> I haven't come across any problem like that... is this your issue or am I
> misunderstanding?

> Note that Ebean registers with the JVM shutdown hook ... and uses that to
> close it's resources such as thread pools and Connection pools. It also can
> trigger a GC to collection profiling information for Autofetch (with a small
> wait of 100ms from memory).

> Thanks, Rob.

> On Sun, Oct 18, 2009 at 5:53 AM, Alex <alxa...@googlemail.com> wrote:

> > Thanks for the hint.

> > > some if not all of those threads might belong to H2 so you probably
> > > need to shout down H2 to get rid of them

> > So, does anybody knows how can we get a reference to the underlying
> > database object (in this case I think it is an instance of
> > org.h2.engine.Database) ? By the way, isn't it something that Ebean
> > should take care of? I didn't initialize the db, so I shouldn't be
> > required to shut it down myself.


 
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