Class CEComFilter

class CEComFilter : public CBase;

Description

This class serves as the base class for ECom filter plugins. It provides minimal functionality to simply install and destroy filters specified by their UID or data type. The RHTTPSession passed in is passed onto the filter as a TAny* pointer and therefore must be casted back to an RHTTPSession pointer by the filter.

Derivation

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

• CEComFilter - This class serves as the base class for ECom filter plugins. It provides minimal...

Members

Defined in CEComFilter:

• InstallFilterL(RHTTPSession,const TDesC8 &)Intended Usage: This method is used to install filters to the filter queue. The ...
• InstallFilterL(RHTTPSession,const TUid)Intended Usage: This method is used to install filters to the filter queue. The ...
• ~CEComFilter()Intended Usage: Virtual 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...

inline ~CEComFilter();

Pre-Condition

The object identified by the destructor key in iEcomDtorID exists

Description

Intended Usage: Virtual destructor

Post-Condition

The object is destroyed

static inline CEComFilter* InstallFilterL(RHTTPSession aSession, const TUid aEComFilterUid);

Pre-Condition

The session had already been setup

Description

Intended Usage: This method is used to install filters to the filter queue. The implementation UID of the filter plugin is passed to identify the plugin that is required. The returned pointer is not owned as the filters must be self-destroying when they are unloaded.

Post-Condition

The filter(s) have been installed

Parameters

RHTTPSession aSession A handle to the transport session const TUid aEComFilterUid The implementation UID of the plugin

Return value

CEComFilter * Pointer to the newly installed plugin

static inline CEComFilter* InstallFilterL(RHTTPSession aSession, const TDesC8 &aEComFilterDataType);

Pre-Condition

The session had already been setup

Description

Intended Usage: This method is used to install filters to the filter queue. The implementation UID of the filter plugin is passed to identify the plugin that is required. The returned pointer is not owned as the filters must be self-destroying when they are unloaded.

Post-Condition

The filter(s) have been installed

Parameters

RHTTPSession aSession A handle to the transport session const TDesC8 &aEComFilterDataType A descriptor containing the datatype of the filter to load

Return value

CEComFilter * Pointer to the newly installed plugin