Microsoft Dynamics Axapta Technical,Functional Coverage

How to create find method in axapta public static table find(AddressCountryRegionId _countryRegionId,AddressStateId _stateId,boolean _forUpdate = false) { TalukaMaster taluka; if (_countryRegionId && _stateId && _District && _taluka ) { taluka.selectForUpdate(_forUpdate); select firstonly taluka where taluka.CountryRegionId == _countryRegionId && taluka.StateId == _stateId && taluka.districtId == _District; } return taluka; }