operations_research::LocalSearchFilter Class Reference

Local Search Filters. More...

#include <constraint_solveri.h>

Inheritance diagram for operations_research::LocalSearchFilter:

List of all members.

Public Member Functions
virtual bool	Accept (const Assignment *delta, const Assignment *deltadelta)=0
	Accepts a "delta" given the assignment with which the filter has been synchronized; the delta holds the variables which have been modified and their new value.
virtual void	Synchronize (const Assignment *assignment)=0
	Synchronizes the filter with the current solution.
virtual bool	IsIncremental () const

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Detailed Description

Local Search Filters.

For fast neighbor pruning

Definition at line 1159 of file constraint_solveri.h.

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Member Function Documentation

virtual bool operations_research::LocalSearchFilter::Accept	(	const Assignment *	delta,
		const Assignment *	deltadelta
	)			[pure virtual]

Accepts a "delta" given the assignment with which the filter has been synchronized; the delta holds the variables which have been modified and their new value.

Sample: supposing one wants to maintain a[0,1] + b[0,1] <= 1, for the assignment (a,1), (b,0), the delta (b,1) will be rejected but the delta (a,0) will be accepted.

virtual void operations_research::LocalSearchFilter::Synchronize

(

const Assignment *

assignment

)

[pure virtual]

Synchronizes the filter with the current solution.

Implemented in operations_research::IntVarLocalSearchFilter.

virtual bool operations_research::LocalSearchFilter::IsIncremental

(

)

const [inline, virtual]

Definition at line 1172 of file constraint_solveri.h.

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

• or-tools/src/constraint_solver/constraint_solveri.h