DtUserProvider

Description

The DtUserProvider class implements an object that imports data on the basis of algorithm, implemented in user module.

Comments

Object of this class can be used for direct import of data array using custom algorithm. Custom algorithm is implemented in the IDtRecordsetProvider.Fetch method that has to be redefined in user class.

It is also used to set up the User Provider ETL task object.

Properties inherited from IDtUserProvider

  Property name Brief description
ForeClass The ForeClass property determines the name of the class, that implements custom provider.
ForeModule The ForeModule property determines the module, which contains the class, that implements custom provider.
UserData The UserData property determines additional settings in the XML format for custom data source.

Properties inherited from IDtProvider

  Property name Brief description
AutoFillFieldsMode The AutoFillFieldsMode property determines the field type detection mode of the data provider.
CalcFieldsErrors The CalcFieldsErrors property returns a collection of errors appeared on calculated fields calculation.
Eof The Eof property returns True if the cursor in the data source is on the last record.
FetchErrors The FetchErrors property returns errors occurred on data import.
FilterIf The FilterIf property returns condition of loading of records from data provider.
StringDataFormat The StringDataFormat property returns settings used on data identification.
TypeGuessRows The TypeGuessRows property determines number of rows by means of which the data type of each field will be determined.

Properties inherited from IDtObject

  Property name Brief description
Active The Active property returns data source or data consumer state.
Fields The Fields property returns data provider/data consumer fields description.
GetType The GetType property returns data provider/data consumer type.
Metabase The Metabase property determines the repository, in which data is imported or exported.

Methods inherited from IDtProvider

  Method name Brief description
Fetch The Fetch method reads data of the current entry from the data provider.
FetchRows The FetchRows method reads data of the specified number of entries from the data provider and returns the number of actually read entries.
ReadingRowsCount The ReadingRowsCount method returns the number of records read from the data source with taking into account loading condition.
ReadingRowsTotalCount The ReadingRowsTotalCount method returns the number of records read from the data source without taking into account loading condition.

Methods inherited from IDtObject

  Method name Brief description
ClearFields The ClearFields method clears fields list of the data provider or data consumer.
Close The Close method closes data provider or data consumer.
FieldsFromFile The FieldsFromFile method reads fields list from the source file.
Load The Load method loads data source or data consumer parameters from XML.
Open The Open method opens data provider or data consumer.
Save The Save method saves data source or data consumer parameters in XML format.

See also:

Dt Assembly Classes