Class: TOperatorComparator

Declaration: Comparator.h

Taxonomy Categories:

Member Functions:

Interface Category:

API.

Inherits From:

TComparator

Inherited By:

None.

Purpose:

TOperatorComparator is a class that you can use to perform comparison and hash operations on comparator objects. It uses operator ==on the object.

Instantiation:

Allocate on the heap only. These are adopted by collections.

Deriving Classes:

Do not derive any classes from TOperatorComparator.

Concurrency:

Not multithread safe.

Resource Use:

No special requirements.

Other Considerations:

None.

Member Function: TOperatorComparator::TOperatorComparator

TOperatorComparator ()
TOperatorComparator (const TOperatorComparator < AType > &)

Interface Category:

API.

Purpose:

Default constructor.
Copy constructor.

Calling Context:

Call this function directly anywhere the creation of a TOperatorComparator object is desired.
Call this function directly to copy an object.

Parameters:

Takes no parameters.
const TOperatorComparator < AType > & -The object to be copied.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TOperatorComparator::~TOperatorComparator

virtual ~ TOperatorComparator ()

Interface Category:

API.

Purpose:

Destructor.

Calling Context:

Call this function directly to destroy an object.

Parameters:

Takes no parameters.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TOperatorComparator::Compare

virtual EComparisonResult Compare (const AType & leftObj, const AType & rightObj) const

Interface Category:

API.

Purpose:

Compares two objects of the same type.

Calling Context:

Call this function directly to compare two objects. Normally called internally. Could be called by anyone to compare two AType objects.

Parameters:

const AType & leftObj -The left-hand object.
const AType & rightObj -The right-hand object.

Return Value:

Returns kEqual or kNotEqual.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TOperatorComparator::GetHash

virtual HashResult GetHash (const AType & obj) const

Interface Category:

API.

Purpose:

Calls an object's operator for generating a hash value.

Calling Context:

Call this function directly to generate a hash value for an object. Normally called internally. Could be called by anyone to get the hash of an AType object.

Parameters:

const AType & obj -The object for which a hash value is to be generated.

Return Value:

The hash value generated.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TOperatorComparator::operator=

const TOperatorComparator < AType > & operator =(const TOperatorComparator < AType > &)

Interface Category:

API.

Purpose:

Assignment operator.

Calling Context:

Call this function directly when an object is assigned to another compatible object.

Parameters:

const TOperatorComparator < AType > & -The TOperatorComparator to be copied.

Return Value:

A reference to the left-hand side object.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

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