IEtlPlainFieldsMapper.Map

Syntax

Map(Field: IEtlPlainField): IExpression;

Parameters

Field is a field for which it is necessary to determine binding.

Description

The Map property returns an object that contains a formula of the link between output field and input fields.

Example

Sub Main;

Var

MB: IMetabase;

EtlTask: IEtlTask;

Object: IEtlPlainDataJoin;

Mapper: IEtlPlainFieldsMapper;

Map: IExpression;

Begin

MB:=MetabaseClass.Active;

EtlTask:=MB.ItemById("ETL").Bind As IEtlTask;

Object:=EtlTask.Item(0) As IEtlPlainDataJoin;

Mapper:=Object.Mapper;

Map:=Mapper.Map(Object.PlainOutput.Fields.Item(0));

End Sub Main;

After executing this example variable Map contains a formula of the link between output field and input fields. ETL task object is Join. Repository object has the ETL identifier.