Passing params to the AMImp method from backing bean

Question

Hello. I am an ADF/Jdeveloper Noob and i have a requirement where I have created an AM method below and exposed it to my View Controller.
I am using Jdeveloper 11..1.1.4 to doe this.
//In AM
public boolean createSRTask(String sourceName, Number sourceRow)
//insert new row in the Entity Object.
EntityDefImpl SRTaskDef = MassSrImportEOImpl.getDefinitionObject();
MassSrImportEOImpl newSRTask = (MassSrImportEOImpl)SRTaskDef.createInstance2(getDBTransaction(), null);
newSRTask.setSourceName(sourceName);
newSRTask.setSourceRow(sourceRow);
return(true);
I have a text file i am reading and I get the parameters from processing that file when the user presses the upload button... I can loop thru the file contents etc. with no issues but i have yet
to figure out how to code the backing bean to call the AMImp method with the parameters I have read in.
Thank you in advance for any help.
Edited by: 832187 on Jan 16, 2012 6:51 AM
Edited by: 832187 on Jan 16, 2012 7:01 AM

Answer 1

In this case you should build a VO which is build on EO, add it to the data model of the application module. The you can either implement the service method in the VO or the application module. Let's assume you put it in the am (application module) like you already did. the method there would look like
//In AM
    public boolean createSRTask(String sourceName, Number sourceRow) {
        ViewObjectImpl massView = (ViewObjectImpl)findViewObject("MassSrImportView1");
        Row row =  massView.createRow();
        row.setAttribute("Source", sourceName);
        row.setAttribute("SRCNR", sourceRow);
        massView.insertRow(row);
        return true;
    }Some note on this:
1. the rows are not inserted in the db as long as you don't commit the transaction
2. It look like your view does not have a PK. The framework works better if you have one
3. If you always return true, you can omit the return value totally
4. If you plan to insert multiple rows you should consider passing hte file to the am method and do a bulk insert in there as this would minimize round trips.
I strongly recommend the you read the http://docs.oracle.com/cd/E25054_01/web.1111/b31974/bcintro.htm to get more knowledge about the business layer.
Timo