12.14. Using @Initialize and @Uninitialize

public class MultiDataSourceAccessor 
{
    @ConfigParam
    private File dataSourceConfig;

    Map<String, Datasource> datasources = new HashMap<String, Datasource>();

    @Initialize
    public void createDataSources() 
    {
        // Add DS creation code here....
        // Read the dataSourceConfig property to read the DS configs...
    }

    @Uninitialize
    public void releaseDataSources() 
    {
        // Add DS release code here....
    }

    // etc...
}