xal.extension.solver.algorithm

Class RandomShrinkSearch.ComboSearcher

java.lang.Object

xal.extension.solver.algorithm.RandomShrinkSearch.RandomSearcher

xal.extension.solver.algorithm.RandomShrinkSearch.ComboSearcher

All Implemented Interfaces:

RandomShrinkSearch.Searcher

Enclosing class:

RandomShrinkSearch

public class RandomShrinkSearch.ComboSearcher
extends RandomShrinkSearch.RandomSearcher

Use a combination of search engines to search for the best solution.

Field Summary

Fields

Modifier and Type	Field and Description
protected RandomShrinkSearch.RandomSearcher	_randomSearcher Description of the Field
protected RandomShrinkSearch.ShrinkSearcher	_shrinkSearcher Description of the Field
protected static double	SHRINK_THRESHOLD Description of the Field

Fields inherited from class xal.extension.solver.algorithm.RandomShrinkSearch.RandomSearcher

_changeProbabilityBase, _randomGenerator, _values, NUM_VARIABLES

Constructor Summary

Constructors

Constructor and Description
ComboSearcher() Constructor

Method Summary

Modifier and Type	Method and Description
void	newTopSolution(TrialPoint oldPoint, TrialPoint newPoint) An event indicating that a new solution has been found which is better than the previous best solution according to the score given by the evaluator.
protected double	proposeValue(Variable variable) Propose a new value for the variable by picking a search engine to propose a new value.
void	reset() reset for searching from scratch; forget history

Methods inherited from class xal.extension.solver.algorithm.RandomShrinkSearch.RandomSearcher

nextPoint, nextPoint, nextTrialPoint

Methods inherited from class java.lang.Object

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

Field Detail

_shrinkSearcher

protected RandomShrinkSearch.ShrinkSearcher _shrinkSearcher

Description of the Field

_randomSearcher

protected RandomShrinkSearch.RandomSearcher _randomSearcher

Description of the Field

SHRINK_THRESHOLD

protected static final double SHRINK_THRESHOLD

Description of the Field

See Also:

Constant Field Values

Constructor Detail

ComboSearcher

public ComboSearcher()

Constructor

Method Detail

reset

public void reset()

reset for searching from scratch; forget history

Specified by:

reset in interface RandomShrinkSearch.Searcher

Overrides:

reset in class RandomShrinkSearch.RandomSearcher

newTopSolution

public void newTopSolution(TrialPoint oldPoint,
                           TrialPoint newPoint)

An event indicating that a new solution has been found which is better than the previous best solution according to the score given by the evaluator.

Specified by:

newTopSolution in interface RandomShrinkSearch.Searcher

Overrides:

newTopSolution in class RandomShrinkSearch.RandomSearcher

Parameters:

oldPoint - The old best point.

newPoint - The new best point.

proposeValue

protected double proposeValue(Variable variable)

Propose a new value for the variable by picking a search engine to propose a new value.

Overrides:

proposeValue in class RandomShrinkSearch.RandomSearcher

Parameters:

variable - the variable for which to propose a new value

Returns:

the new value to propose for the variable