Re: flush cayenne config and connections

Mon, 21 Mar 2011 07:30:09 -0700

Title: html versie van handtekening
So this is the best I can find right now

        setupNewJNDIInfo();

        for (Object o:Configuration.getSharedConfiguration().getDomains()) {
            DataDomain d=(DataDomain)o;
            for (Object no : d.getDataNodes()) {
                DataNode n = (DataNode) no;
                DataSourceFactory f = (DataSourceFactory) Class.forName(n.getDataSourceFactory()).newInstance();
                DataSource ds = f.getDataSource(n.getDataSourceLocation());
                n.setDataSource(ds);
            }
        }

This will recreate all datasources for all nodes in all domains.

Is there an easier/better way?

HPI

On 3/21/11 3:12 PM, Hans Pikkemaat wrote: 
Hi,

So this is what I do now right after repopulating the jndi information:

         DataSourceFactory f = new JNDIDataSourceFactory();
         f.initializeWithParentConfiguration(Configuration.getSharedConfiguration());

         DataSource ds = f.getDataSource("jdbc/DB_DB1");

         Configuration.getSharedConfiguration().getDomain("Domain1").getNode("Node1").setDataSource(ds);

This overrides the data source but it is done hardcoded.
Is there an easy way to recreate a datasource based on the existing configuration?
Are there convenience methods/classes I can reuse to load this information?

I want to prevent manual ds reset/creation code in all my unit tests.

tx

Hans


On 3/21/11 2:00 PM, Hans Pikkemaat wrote:

Sounds good, is there a way to programmatically set my own DataSourceFactory before initializing cayenne?
Or is the only way to set it during a reset process.

HPI

On 3/21/11 1:31 PM, Andrus Adamchik wrote:

Yeah, Cayenne DataNode obtains DataSource once and stores it for future use. Not sure if a better long-term strategy would be to do JNDI lookups every time ? (maybe not), but for now you may either (1) write your own factory that creates a simple DataSource wrapper that grabs a fresh DS via JNDI every time a connection is requested, or (2) call DataNode.setDataSource(..) during your environment reset process.

Andrus


On Mar 21, 2011, at 2:12 PM, Hans Pikkemaat wrote:

Hi,

I have a unit test where I use jndi to determine my connection parameters.

When I run one unit test which uses a specific jndi setup and it calls cayenne then
all works fine (i use org.apache.cayenne.conf.JNDIDataSourceFactory)

I then clear my jndi container and repopulate it with different connection details
(different database).

Running cayenne again still uses the earlier connection. Recreating a data context
doesn't seem to help. I also tried Configuration.getSharedConfiguration().shutdown()
but this also doesn't help.

Maybe the connections are re-used? If so, is there a way to clear those?

In general, is there a way to reset cayenne in such a way that my above unit testing will work?

tx

Hans




    

    

    
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