Class CContactFieldStorage

class CContactFieldStorage : public CBase;

Description

Abstract base class for the different types of contact field data storage.

CContactTextField, CContactStoreField, CContactAgentField, CContactDateField and CContactNumberField are all derived from this class.

A pointer to the base class can be obtained by calling CContactItemField::Storage(). Pointers to the derived classes can be retrieved by calling CContactItemField::TextStorage(), CContactItemField::StoreStorage() etc.

Derivation

• CBase - Base class for all classes to be instantiated on the heap

• CContactFieldStorage - Abstract base class for the different types of contact field data storage

Members

Defined in CContactFieldStorage:

• CContactFieldStorage_Reserved1()
• ExternalizeL()Externalises the field data
• InternalizeL()Internalises the field data
• IsFull()Tests whether the field storage contains data
• RestoreL()Restores the field data
• StoreL()Stores the field data

Inherited from CBase:

• Delete()Deletes the specified object
• Extension_()Extension function
• operator new()Initialises the object to binary zeroes

virtual void InternalizeL(RReadStream &aStream)=0;

Description

Internalises the field data.

Parameters

RReadStream &aStream Stream from which the the contents of the field should be internalised.

virtual void ExternalizeL(RWriteStream &aStream) const=0;

Description

Externalises the field data.

Parameters

RWriteStream &aStream Write stream to which the contents of the field should be externalised.

virtual TStreamId StoreL(CStreamStore &aStore) const=0;

Description

Stores the field data.

Parameters

CStreamStore &aStore Reference to the stream store to which the field data is written.

Return value

TStreamId The ID of the stream store.

virtual void RestoreL(CStreamStore &aStore, RReadStream &aStream)=0;

Description

Restores the field data.

Parameters

CStreamStore &aStore Reference to the store from which the object is to be restored. RReadStream &aStream Reference to the stream which should be passed to InternalizeL().

virtual TBool IsFull() const=0;

Description

Tests whether the field storage contains data.

Return value

TBool True if the field storage contains data, false if not.

private: virtual IMPORT_C void CContactFieldStorage_Reserved1();

Description