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From Michael Gentry <mgen...@masslight.net>
Subject Re: Inject Questions
Date Sat, 25 Sep 2010 16:57:49 GMT
That put me over the hump and I'm debugging now.  I was looking at
ServerRuntime, but hadn't figured out what to pass it yet, but I see
it is just the model.

Thanks Andrus,

mrg


On Sat, Sep 25, 2010 at 12:42 PM, Andrus Adamchik
<andrus@objectstyle.org> wrote:
>
>> I can see using Inject being messy in my Tapestry 5 applications as I
>> have to start using the full path to the Inject annotation every time
>> since T5 provides an Inject annotation, too
>
> @Inject is for internal use within Cayenne and for writing Cayenne extensions. Unlike
Tapestry we won't be forcing our DI engine for the entire application.
>
>> It appears you can no longer create a DataContext.  I finally found
>> the Inject annotation and tried it, but I get a null pointer exception
>> because things aren't bootstrapped.  Is there a simple way to do this
>> now that I'm missing?  (I'm still looking through the code.)
>
> Unfortunately I haven't documented everything yet, but you can still find some examples
and rudimentary docs in the upgrade notes:
>
> http://svn.apache.org/repos/asf/cayenne/main/trunk/tutorials/tutorial/src/main/java/org/apache/cayenne/tutorial/Main.java
> http://svn.apache.org/repos/asf/cayenne/main/trunk/docs/doc/src/main/resources/UPGRADE.txt
>
> Specifically the bootstrap code now looks like this (taken from tutorial) :
>
> ServerRuntime cayenneRuntime = new ServerRuntime("cayenne-UntitledDomain.xml");
> ObjectContext context = cayenneRuntime.getContext();
>
> Not really harder than it was, except that there's no singleton, so you need to decide
how to store/access ServerRuntime instance (e.g. inside Tapestry DI engine).
>
> Andrus
>
>
>
> On Sep 25, 2010, at 7:33 PM, Michael Gentry wrote:
>
>> I made a few tweaks to the H2 adapter in 3.1 and was wanting to test
>> them, so I started creating a simple class/project to test it.
>> Nothing complex, just insert a few records in a trivial table.
>>
>> It appears you can no longer create a DataContext.  I finally found
>> the Inject annotation and tried it, but I get a null pointer exception
>> because things aren't bootstrapped.  Is there a simple way to do this
>> now that I'm missing?  (I'm still looking through the code.)
>>
>> Two other comments:
>>
>> I can see using Inject being messy in my Tapestry 5 applications as I
>> have to start using the full path to the Inject annotation every time
>> since T5 provides an Inject annotation, too.
>>
>> It also appears you can't Inject inside a method, either:
>>
>> public void updateFoo()
>> {
>>  @Inject ObjectContext context;
>>  ...
>> }
>>
>> There are many times in my current codebase (3.0) that I create a
>> local context.  Is that feature going to be lost now?
>>
>> Thanks,
>>
>> mrg
>>
>
>

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