Thanks a lot. When we get our factory done I will post some sample code for
everyone to see.
On 1/16/06 10:04 PM, "Andrus Adamchik" <andru..bjectstyle.org> wrote:
>
> On Jan 16, 2006, at 9:47 PM, Dov Rosenberg wrote:
>> Is there some type of delegate class we can register or some type
>> of event
>> notification we can react to so that we can set our parameters?
>
> DataSourceFactory interface itself can be viewed as such a delegate.
> Cayenne instantiates concrete implementation specified in the
> Modeler. It's up to you what this implementation does (e.g.
> internally it can further delegate to JNDIDataSourceFactory or
> DriverDataSourceFactory). This is very flexible - my own custom
> implementations ranged from reading local preferences to popping up
> Swing authentication dialog.
>
> Some more details - as you probably noticed, "DataSource Factory"
> dropdown in the Modeler allows you to type your own subclass in
> addition to the two choices. If you do so, a "Location Hint" field
> appears below - this is the String that will be passed to your custom
> factory in "getDataSource" method - your custom implementation is
> free to interpret it.
>
>
>> Question: For the DriverDataSourceFactory is there a way to provide
>> the
>> params such as driver class, URL, userid, passwd? It looks like
>> there is
>> some sort of XML file but I could not find the required format.
>
> Yes, there is an XML file created by the Modeler when you save your
> project. Here is a sample:
>
> <?xml version="1.0" encoding="utf-8"?>
> <driver project-version="1.1" class="org.postgresql.Driver">
> <url value="jdbc:postgresql://localhost:5432/db"/>
> <connectionPool min="1" max="4" />
> <login userName="user" password="pass"/>
> </driver>
>
> But for maximum flexibility I'd go with your own factory to stay
> independent from possible future Cayenne DTD changes.
>
> Andrus
>
>
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