mets::aspiration_criteria_chain Class Reference

Function object expressing an aspiration criteria. More...

#include <tabu-search.hh>

Inheritance diagram for mets::aspiration_criteria_chain:

Collaboration diagram for mets::aspiration_criteria_chain:

Public Member Functions
	aspiration_criteria_chain (aspiration_criteria_chain *next=0)
	Constructor. More...
	aspiration_criteria_chain (const aspiration_criteria_chain &other)
	purposely not implemented (see Effective C++)
aspiration_criteria_chain &	operator= (const aspiration_criteria_chain &other)
	purposely not implemented (see Effective C++)
virtual	~aspiration_criteria_chain ()
	Virtual destructor.
virtual void	reset ()
	A method to reset this aspiration criteria chain to its original state.
virtual void	accept (const feasible_solution &fs, const move &mov, gol_type evaluation)
	This is a callback function from the algorithm that tells us that a move was accepted. More...
virtual bool	operator() (const feasible_solution &fs, const move &mov, gol_type evaluation) const
	The function that decides if we shoud accept a tabu move. More...

Protected Attributes
aspiration_criteria_chain *	next_m

Detailed Description

Function object expressing an aspiration criteria.

An aspiration criteria is a criteria used to override the tabu list. When the aspiration criteria is met a move is made even if it's in the tabu-list

Aspiration critera can be chained so a criteria can decorate another criteria

Constructor & Destructor Documentation

mets::aspiration_criteria_chain::aspiration_criteria_chain ( aspiration_criteria_chain *  next = 0 )

inlineexplicit

Constructor.

Parameters

next	Optional next criteria in the chain.

Member Function Documentation

void mets::aspiration_criteria_chain::accept ( const feasible_solution &  fs, const move &  mov, gol_type  evaluation  )

inlinevirtual

This is a callback function from the algorithm that tells us that a move was accepted.

You can use this function to update the aspiration criteria based on the current search status. (e.g. record the best cost for a best ever criteria)

Parameters

fs	The current working solution (after applying move).
mov	The accepted move (the move just made).

Returns

True if the move is to be accepted.

Reimplemented in mets::best_ever_criteria.

bool mets::aspiration_criteria_chain::operator() ( const feasible_solution &  fs, const move &  mov, gol_type  evaluation  ) const

inlinevirtual

The function that decides if we shoud accept a tabu move.

Parameters

fs	The current working solution (before applying move).
mov	The move to be made (the move that is being evaluated).

Returns

True if the move is to be accepted.

Reimplemented in mets::best_ever_criteria.

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The documentation for this class was generated from the following file:

• metslib/tabu-search.hh