Google OR-Tools v9.14
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operations_research::BoolVectorBasedSolutionGenerator Class Reference

Detailed Description

The class of solution generators that use a vector of Booleans as focus, with a transformation from a vector of subset indices to a vector of Booleans if needed.

Definition at line 208 of file set_cover_heuristics.h.

#include <set_cover_heuristics.h>

Inheritance diagram for operations_research::BoolVectorBasedSolutionGenerator:
operations_research::SetCoverSolutionGenerator operations_research::ElementDegreeSolutionGenerator operations_research::LazyElementDegreeSolutionGenerator operations_research::LazySteepestSearch operations_research::SteepestSearch

Public Member Functions

 BoolVectorBasedSolutionGenerator (SetCoverInvariant *inv, SetCoverInvariant::ConsistencyLevel consistency_level, absl::string_view class_name, absl::string_view name)
bool NextSolution (const SubsetBoolVector &_) override
 Same as above, but with a vector of Booleans as focus.
bool NextSolution (absl::Span< const SubsetIndex > focus) final
bool NextSolution () final
 Virtual methods that must be implemented by derived classes.
Public Member Functions inherited from operations_research::SetCoverSolutionGenerator
 SetCoverSolutionGenerator (SetCoverInvariant *inv, SetCoverInvariant::ConsistencyLevel consistency_level, absl::string_view class_name, absl::string_view name)
virtual ~SetCoverSolutionGenerator ()=default
void SetName (const absl::string_view name)
SetCoverInvariantinv () const
virtual SetCoverSolutionGeneratorResetLimits ()
 Resets the limits to their default values.
SetCoverSolutionGeneratorSetMaxIterations (int64_t max_iterations)
 Sets the maximum number of iterations.
int64_t max_iterations () const
 Returns the maximum number of iterations.
SetCoverSolutionGeneratorSetTimeLimitInSeconds (double seconds)
 Sets the time limit in seconds.
absl::Duration run_time () const
double run_time_in_seconds () const
 Returns the total elapsed runtime in seconds.
double run_time_in_microseconds () const
 Returns the total elapsed runtime in microseconds.
std::string name () const
 Returns the name of the heuristic.
std::string class_name () const
 Returns the name of the class.
Cost cost () const
 Returns the current cost of the solution in the invariant.
bool CheckInvariantConsistency () const

Additional Inherited Members

Protected Member Functions inherited from operations_research::SetCoverSolutionGenerator
SetCoverModelmodel () const
 Accessors.
BaseInt num_subsets () const
double time_limit_in_seconds () const
 The time limit in seconds.
Protected Attributes inherited from operations_research::SetCoverSolutionGenerator
absl::Duration run_time_
 run_time_ is an abstract duration for the time spent in NextSolution().
SetCoverInvariant::ConsistencyLevel consistency_level_
 The consistency needed by the solution generator.

Constructor & Destructor Documentation

◆ BoolVectorBasedSolutionGenerator()

operations_research::BoolVectorBasedSolutionGenerator::BoolVectorBasedSolutionGenerator ( SetCoverInvariant * inv,
SetCoverInvariant::ConsistencyLevel consistency_level,
absl::string_view class_name,
absl::string_view name )
inlineexplicit

Definition at line 210 of file set_cover_heuristics.h.

Member Function Documentation

◆ NextSolution() [1/3]

bool operations_research::BoolVectorBasedSolutionGenerator::NextSolution ( )
inlinefinalvirtual

Virtual methods that must be implemented by derived classes.

Computes the next full solution taking into account all the subsets.

Implements operations_research::SetCoverSolutionGenerator.

Reimplemented in operations_research::ElementDegreeSolutionGenerator, operations_research::LazyElementDegreeSolutionGenerator, operations_research::LazySteepestSearch, and operations_research::SteepestSearch.

Definition at line 222 of file set_cover_heuristics.h.

◆ NextSolution() [2/3]

bool operations_research::BoolVectorBasedSolutionGenerator::NextSolution ( absl::Span< const SubsetIndex > focus)
inlinefinalvirtual

◆ NextSolution() [3/3]

bool operations_research::BoolVectorBasedSolutionGenerator::NextSolution ( const SubsetBoolVector & in_focus)
inlineoverridevirtual

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