[TYPO3-mvc] Map table as model

[Dawid Pacholczyk]

Hello List,
  I would like to map an existing table as my own model in my ext.

I would like to have in my ext an model "BeUser"

So I did this ts in my setup.txt

plugin.tx_ext {
	persistence {
		storagePid = 5
		classes {
			Tx_Ext_Domain_Model_BeUser {
				mapping {
					tableName = be_users
					recordType = Tx_Ext_Domain_Model_BeUser
				}
			}
		}
	}
}

I`ve created a model and repository but I get nothing when i user 
$berepo->findAll()

what am I doing wrong ?

Best regards,
Dawid Pacholczyk