Class CDaFileImporter

class CDaFileImporter : public CDaIncremental;

Description

Base class for classes that import a file into a data application model.

Derivation

• MDaIncremental - Abstract interface for classes that implement data model incremental operations....
• CBase - Base class for all classes to be instantiated on the heap.

• CDaIncremental - CBase-based class for classes that implement data model incremental operations.

• CDaFileImporter - Base class for classes that import a file into a data application model.

Members

Defined in CDaFileImporter:

• CDaFileImporter(TDaFileImportParams const &)Constructor.
• CloseL()Closes the database.
• DoNext(TInt &)Implements an incremental step in data importation.
• EBeforeStartOfTokenRead position is before the start of an input field.
• EEndOfFileEnd of import file.
• EReadingTokenInput field is being read.
• EStartOfFileStart of import file.
• HandleCancel()Utility function to handle a cancel event occurring in data importation.
• HandleLeave(TInt)Utility function to handle a leave occurring in data importation.
• ImportL()Begins the data importation.
• Next(TInt &)Interface to performing an incremental step in data importation.
• OpenL()Opens the database to which to import.
• TStateImport operation states.
• iColumnBufferColumn import buffer.
• iFileHandle to import file.
• iFileSizeImport file size.
• iFsFile server handle.
• iLineBufferInput line buffer.
• iParamsImport parameters set on construction.
• iRecNoNumber of records imported.
• iRowRow pointer.
• iStateImport operation state.
• iTotalBytesReadNumber of bytes imported.
• ~CDaFileImporter()Destructor.

Inherited from CBase:

• Delete(CBase *)Deletes the specified object.
• Extension_(TUint,TAny *&,TAny *)Extension function
• operator new(TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TAny *)Initialises the object to binary zeroes.
• operator new(TUint,TLeave)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TLeave,TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TUint)Allocates the object from the heap and then initialises its contents to binary z...

Inherited from CDaIncremental:

• DoCancel()
• Initialize(TInt)Initialises the object with the number of remaining steps in the operation.
• SetActiveIncremental(CDaActiveIncremental *)Sets the active object using this interface.
• SetObserver(MDaIncrementalObserver *)Sets the operation observer.
• TerminationState()constGets the operation's terminal state.
• iActiveIncrementalIncremental active object.
• iObserverOperation observer.
• iRemainingStepsNumber of remaining steps.
• iTerminationStateOperation's terminal state.

IMPORT_C CDaFileImporter(TDaFileImportParams const &aParams);

Description

Constructor.

Parameters

IMPORT_C ~CDaFileImporter();

Description

Destructor.

IMPORT_C void OpenL();

Description

Opens the database to which to import.

IMPORT_C virtual void CloseL();

Description

Closes the database.

IMPORT_C virtual TInt ImportL();

Description

Begins the data importation.

This calls CDaFileImporter::Next(TInt &) until that function says that there are no remaining steps.

Return value

IMPORT_C virtual TInt Next(TInt &aRemainingSteps);

Description

Interface to performing an incremental step in data importation.

The default implementation simply calls CDaFileImporter::DoNext(TInt &).

Parameters

Return value

IMPORT_C virtual TInt DoNext(TInt &);

Description

Implements an incremental step in data importation.

The default implementation simply returns KErrGeneral.

Parameters

Return value

IMPORT_C virtual void HandleLeave(TInt aError);

Description

Utility function to handle a leave occurring in data importation.

It calls the object's active object cancel function.

Parameters

IMPORT_C virtual void HandleCancel();

Description

Utility function to handle a cancel event occurring in data importation.

It calls the object's active object cancel function.

protected: TState

Description

Import operation states.

protected: TDaFileImportParams iParams;

Description

Import parameters set on construction.

protected: RFs iFs;

Description

File server handle.

protected: RFileBuf iFile;

Description

Handle to import file.

protected: TState iState;

Description

Import operation state.

protected: CDaRow * iRow;

Description

Row pointer.

protected: CBufFlat * iLineBuffer;

Description

Input line buffer.

protected: CBufFlat * iColumnBuffer;

Description

Column import buffer.

protected: TInt iRecNo;

Description

Number of records imported.

protected: TInt iTotalBytesRead;

Description

Number of bytes imported.

protected: TInt iFileSize;

Description

Import file size.