datamodule-config , one or more argument accessor method

Hi,
Is there anyway we can specify arguments to the accessor method(get method) in datamodule-config.xml?

<domain>
 <type name="movie" class="bb.Movie">
   <field name="practice" node="@Practice" type="string"/>
 </type>
</domain>

Are there any way to invoke the method getPractice(type arg1, type arg2, type arg3, ....), instead of the no argument getter method get called.

Also, how do I read the datamodule-config file programatically.
I am looking to add field description in to the config file as well as read the fields.
this is how I tried, in vain.

        Datamodule datamodule = new Datamodule(); // uses the default configuration?
        Configuration configuration = datamodule.getConfiguration();
        DomainConfig domainConfig = configuration.getDomain();
        TypeConfig typeConfig  = domainConfig.getType("movie");
        Iterator<FieldConfig> fields =  typeConfig.getFields().iterator();
        while(fields.hasNext()){
                FieldConfig fieldConfig = fields.next();
               
                if(fieldConfig.getNodeName().equals("title")){
                        return title; // return something..
                }
        }

But this doesn't work...typeConfig is null.
Do I have to specifically state the configuration file (datamodule-config.xml) somewhere.
I am not getting the com.backbase.datamodule.core.configuration.ConfigurationImpl class in my program. My eclipse complains "com.backbase.datamodule.core.configuration.ConfigurationImpl cannot be resolved to a type"
Please tell me an idea of how to get hold of the configuration file.

Jay

I got the second part of my

I got the second part of my question right.. I was not specifying the config file. That was wrong.
I used Datamodule datamodule = new Datamodule(inputstream ), and it worked..
Thanks