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CSensrvConditionEvaluator Class Reference

class CSensrvConditionEvaluator : public CBase

Condition Evaluator class for Sensor Server. Provides mandatory ECOM interface specific things in addition to condition evaluation services.

Note that Condition Evaluator plug-ins run in Sensor Server main thread, so all method calls should return promptly.

Since
S60 5.0

Inherits from

Public Member Functions
~CSensrvConditionEvaluator ()
TBool CheckConditionValidityL (const CSensrvChannelCondition *, const CSensrvChannelCondition *)
TBool EvaluateConditionL (const CSensrvChannelCondition *, const CSensrvChannelCondition *, const TDesC8 &)
CSensrvConditionEvaluator * NewL ( TSensrvChannelInfo &)
Inherited Functions
CBase::CBase()
CBase::Delete(CBase *)
CBase::Extension_(TUint,TAny *&,TAny *)
CBase::operator new(TUint)
CBase::operator new(TUint,TAny *)
CBase::operator new(TUint,TLeave)
CBase::operator new(TUint,TLeave,TUint)
CBase::operator new(TUint,TUint)
CBase::~CBase()
Private Attributes
TUid iDestructorIdKey

Constructor & Destructor Documentation

~CSensrvConditionEvaluator()

~CSensrvConditionEvaluator ( ) [inline, virtual]

Virtual destructor

Since
S60 5.0

Member Functions Documentation

CheckConditionValidityL(const CSensrvChannelCondition *, const CSensrvChannelCondition *)

TBool CheckConditionValidityL ( const CSensrvChannelCondition * aCondition1,
const CSensrvChannelCondition * aCondition2
) [pure virtual]

Checks that condition values and indexes are valid for a single or two-part condition. Both conditions have same index.

Since
S60 5.0
leave
One of Symbian error codes

Parameters

const CSensrvChannelCondition * aCondition1 The first condition to check. If the condition is a two-part condition, this contains the first part and the other part is given in aCondition2. This parameter is never NULL.
const CSensrvChannelCondition * aCondition2 The second condition to check. Only used with two-part conditions, otherwise NULL.

EvaluateConditionL(const CSensrvChannelCondition *, const CSensrvChannelCondition *, const TDesC8 &)

TBool EvaluateConditionL ( const CSensrvChannelCondition * aCondition1,
const CSensrvChannelCondition * aCondition2,
const TDesC8 & aData
) [pure virtual]

Check given condition against given data item. This will be called possibly many times for each data tem, so any processing done in this method should be kept at minimum.

Note: Any conditions given in parameters aCondition1 and aCondition2 will be checked with CheckConditionValidity-method before this method is called for the first time for those conditions, so no duplicate validity checking is necessary.

Since
4.0
leave
One of Symbian error codes

Parameters

const CSensrvChannelCondition * aCondition1 The first condition to check data item against. If the condition is a two-part condition, this contains the first part and the other part is given in aCondition2. This parameter is never NULL.
const CSensrvChannelCondition * aCondition2 The second condition to check data item against. Only used with two-part conditions, otherwise NULL.
const TDesC8 & aData The data item to be evaluated.

NewL(TSensrvChannelInfo &)

CSensrvConditionEvaluator * NewL ( TSensrvChannelInfo & aChannelInfo ) [static, inline]

Two-phase constructor

Since
S60 5.0

Parameters

TSensrvChannelInfo & aChannelInfo Determines the channel information of channel that the loaded plug-in is needed for. Correct Condition Evaluator plug-in for each channel is found by matching for channel type UID (full 0x00000000 format) in default data field of the implementation information of the plug-in.

Member Data Documentation

TUid iDestructorIdKey

TUid iDestructorIdKey [private]

Destructor key for a ECOM component

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