Processor Class Reference

Protocol class which defines Processor interface. More...

#include <keyvalue/mngt/Processor.h>

Inheritance diagram for Processor:

List of all members.

Public Member Functions
virtual const char *	getName () const =0
	Gets Processor's name.
Private Member Functions
virtual value::Result	getResult (const DataSet &data) const =0
	Gets result of processing a DataSet.
Friends
class	DataSet

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Detailed Description

Protocol class which defines Processor interface.

This is the abstract base class for all processors. Since this class is abstract, it cannot be instantiated to build or calculate a particular type of object or value. When one wants to build or calculate a known type of result, then he/she must use ProcessorInstantiator.

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Member Function Documentation

virtual const char* getName

(

)

const [pure virtual]

Gets Processor's name.

Returns:

The name.

Implemented in Builder< Tag >, and Calculator< Tag >.

virtual value::Result getResult

(

const DataSet &

data

)

const [private, pure virtual]

Gets result of processing a DataSet.

This is a low level method which bypasses the memoization technique implemented by DataSet (see DataSet::mustUpdate()). Therefore, if processor is a Processor and data is a DataSet, then rather than

 processor.getResult(data);

one should use

 data.process(processor);

Actually, the latter calls the former adding memoization support.

Parameters:

data

: DataSet to be processed.

Returns:

The result.

Implemented in Builder< Tag >, and Calculator< Tag >.