Package com.google.ortools.constraintsolver

Class SearchLog

java.lang.Object

com.google.ortools.constraintsolver.BaseObject

com.google.ortools.constraintsolver.SearchMonitor

com.google.ortools.constraintsolver.SearchLog

public class SearchLog
extends SearchMonitor

The base class of all search logs that periodically outputs information when
the search is running.

Field Summary

Fields inherited from class com.google.ortools.constraintsolver.SearchMonitor

kNoProgress

Fields inherited from class com.google.ortools.constraintsolver.BaseObject

swigCMemOwn

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SearchLog(long cPtr, boolean cMemoryOwn)
	SearchLog(Solver s, OptimizeVar obj, IntVar var, double scaling_factor, double offset, java.util.function.Supplier<java.lang.String> display_callback, boolean display_on_new_solutions_only, int period)

Method Summary

Modifier and Type	Method	Description
void	AcceptUncheckedNeighbor()	After accepting an unchecked neighbor during local search.
void	applyDecision(Decision decision)	Before applying the decision.
boolean	atSolution()	This method is called when a valid solution is found.
void	beginFail()	Just when the failure occurs.
void	beginInitialPropagation()	Before the initial propagation.
void	delete()
void	endInitialPropagation()	After the initial propagation.
void	enterSearch()	Beginning of the search.
void	exitSearch()	End of the search.
protected void	finalize()
protected static long	getCPtr(SearchLog obj)
void	maintain()
void	noMoreSolutions()	When the search tree is finished.
void	outputDecision()
void	refuteDecision(Decision decision)	Before refuting the decision.
java.lang.String	toString()

Methods inherited from class com.google.ortools.constraintsolver.SearchMonitor

accept, acceptDelta, acceptNeighbor, acceptSolution, afterDecision, beginNextDecision, endFail, endNextDecision, getCPtr, install, IsUncheckedSolutionLimitReached, localOptimum, periodicCheck, progressPercent, restartSearch, solver, swigDirectorDisconnect, swigReleaseOwnership, swigTakeOwnership

Methods inherited from class com.google.ortools.constraintsolver.BaseObject

getCPtr

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

SearchLog

protected SearchLog(long cPtr,
boolean cMemoryOwn)

SearchLog

public SearchLog(Solver s,
OptimizeVar obj,
IntVar var,
double scaling_factor,
double offset,
java.util.function.Supplier<java.lang.String> display_callback,
boolean display_on_new_solutions_only,
int period)

Method Details

getCPtr

protected static long getCPtr(SearchLog obj)

finalize

protected void finalize()

Overrides:

finalize in class SearchMonitor

delete

public void delete()

Overrides:

delete in class SearchMonitor

enterSearch

public void enterSearch()

Description copied from class: SearchMonitor

Beginning of the search.

Overrides:

enterSearch in class SearchMonitor

exitSearch

public void exitSearch()

Description copied from class: SearchMonitor

End of the search.

Overrides:

exitSearch in class SearchMonitor

atSolution

public boolean atSolution()

Description copied from class: SearchMonitor

This method is called when a valid solution is found. If the
return value is true, then search will resume after. If the result
is false, then search will stop there.

Overrides:

atSolution in class SearchMonitor

beginFail

public void beginFail()

Description copied from class: SearchMonitor

Just when the failure occurs.

Overrides:

beginFail in class SearchMonitor

noMoreSolutions

public void noMoreSolutions()

Description copied from class: SearchMonitor

When the search tree is finished.

Overrides:

noMoreSolutions in class SearchMonitor

AcceptUncheckedNeighbor

public void AcceptUncheckedNeighbor()

Description copied from class: SearchMonitor

After accepting an unchecked neighbor during local search.

Overrides:

AcceptUncheckedNeighbor in class SearchMonitor

applyDecision

public void applyDecision(Decision decision)

Description copied from class: SearchMonitor

Before applying the decision.

Overrides:

applyDecision in class SearchMonitor

refuteDecision

public void refuteDecision(Decision decision)

Description copied from class: SearchMonitor

Before refuting the decision.

Overrides:

refuteDecision in class SearchMonitor

outputDecision

public void outputDecision()

maintain

public void maintain()

beginInitialPropagation

public void beginInitialPropagation()

Description copied from class: SearchMonitor

Before the initial propagation.

Overrides:

beginInitialPropagation in class SearchMonitor

endInitialPropagation

public void endInitialPropagation()

Description copied from class: SearchMonitor

After the initial propagation.

Overrides:

endInitialPropagation in class SearchMonitor

toString

public java.lang.String toString()

Overrides:

toString in class BaseObject