org.decisiondeck.xmcda_oo.utils
Class EvaluationsUtils

java.lang.Object
  org.decisiondeck.xmcda_oo.utils.EvaluationsUtils

public class EvaluationsUtils
extends Object

Constructor Summary

EvaluationsUtils()

Method Summary

static <Row,Column> boolean	approxEquals(IRdFloatMatrix<Row,Column> m1, IRdFloatMatrix<Row,Column> m2, double imprecision) Does not use the matrixes definition of approxEquals, so that this method may be used in implementing objects.
static IRdEvaluations	complement(IRdEvaluations evaluations, Set<Alternative> removeAlternatives)
static EvaluationMatrix	getCopy(IRdEvaluations evaluations)
static IRdEvaluations	getReadView(IRdEvaluations evaluations)
static EvaluationMatrix	merge(IRdFloatMatrix<Alternative,Criterion> m1, IRdFloatMatrix<Alternative,Criterion> m2)
static IRdEvaluations	restrictedView(IRdEvaluations evaluations, Predicate<Alternative> restrictToAlternatives, Predicate<Criterion> restrictToCriteria) Retrieves a view restricting to the given sets.
static IRdEvaluations	restrictTo(IRdEvaluations evaluations, Set<Alternative> restrictAlternatives)
static IRdEvaluations	union(IRdEvaluations evaluations1, IRdEvaluations evaluations2) Retrieves an evaluations view delegating to the given evaluations and combining both sets of information.

Methods inherited from class java.lang.Object

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

Constructor Detail

EvaluationsUtils

public EvaluationsUtils()

Method Detail

merge

public static EvaluationMatrix merge(IRdFloatMatrix<Alternative,Criterion> m1,
                                     IRdFloatMatrix<Alternative,Criterion> m2)

complement

public static IRdEvaluations complement(IRdEvaluations evaluations,
                                        Set<Alternative> removeAlternatives)

restrictTo

public static IRdEvaluations restrictTo(IRdEvaluations evaluations,
                                        Set<Alternative> restrictAlternatives)

union

public static IRdEvaluations union(IRdEvaluations evaluations1,
                                   IRdEvaluations evaluations2)

Retrieves an evaluations view delegating to the given evaluations and combining both sets of information.

Parameters:

evaluations1 - not null.

evaluations2 - not null.

Returns:

not null, a read-only view.

approxEquals

public static <Row,Column> boolean approxEquals(IRdFloatMatrix<Row,Column> m1,
                                                IRdFloatMatrix<Row,Column> m2,
                                                double imprecision)

Does not use the matrixes definition of approxEquals, so that this method may be used in implementing objects.

Type Parameters:

Row - the row type.

Column - the column type.

Parameters:

m1 - not null.

m2 - may be null (then returns false).

imprecision - the allowed imprecision.

Returns:

true iff both contents have values at the same positions and these values are not further than the given imprecision.

getCopy

public static EvaluationMatrix getCopy(IRdEvaluations evaluations)

getReadView

public static IRdEvaluations getReadView(IRdEvaluations evaluations)

restrictedView

public static IRdEvaluations restrictedView(IRdEvaluations evaluations,
                                            Predicate<Alternative> restrictToAlternatives,
                                            Predicate<Criterion> restrictToCriteria)

Retrieves a view restricting to the given sets.

Parameters:

evaluations - not null.

restrictToAlternatives - null for no restriction.

restrictToCriteria - null for no restriction.

Returns:

not null, a read-only view.