java.util.Comparator.thenComparing()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中java.util.Comparator.thenComparing()方法的一些代码示例，展示了Comparator.thenComparing()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Comparator.thenComparing()方法的具体详情如下：
包路径：java.util.Comparator
类名称：Comparator
方法名：thenComparing

Comparator.thenComparing介绍

暂无

代码示例

代码示例来源：origin: spring-projects/spring-framework

/**
 * Sorts the given list of {@code MediaType} objects by specificity as the
 * primary criteria and quality value the secondary.
 * @see MediaType#sortBySpecificity(List)
 * @see MediaType#sortByQualityValue(List)
 */
public static void sortBySpecificityAndQuality(List<MediaType> mediaTypes) {
  Assert.notNull(mediaTypes, "'mediaTypes' must not be null");
  if (mediaTypes.size() > 1) {
    mediaTypes.sort(MediaType.SPECIFICITY_COMPARATOR.thenComparing(MediaType.QUALITY_VALUE_COMPARATOR));
  }
}

代码示例来源：origin: kiegroup/optaplanner

@Override
public int compareTo(TotalRankSolverRankingWeight other) {
  return Comparator
      .comparingInt(TotalRankSolverRankingWeight::getBetterCount)
      .thenComparingInt(TotalRankSolverRankingWeight::getEqualCount)
      .thenComparingInt(TotalRankSolverRankingWeight::getLowerCount)
      .thenComparing(TotalRankSolverRankingWeight::getSolverBenchmarkResult, totalScoreSolverRankingComparator) // Tie-breaker
      .compare(this, other);
}

代码示例来源：origin: org.springframework/spring-web

/**
 * Sorts the given list of {@code MediaType} objects by specificity as the
 * primary criteria and quality value the secondary.
 * @see MediaType#sortBySpecificity(List)
 * @see MediaType#sortByQualityValue(List)
 */
public static void sortBySpecificityAndQuality(List<MediaType> mediaTypes) {
  Assert.notNull(mediaTypes, "'mediaTypes' must not be null");
  if (mediaTypes.size() > 1) {
    mediaTypes.sort(MediaType.SPECIFICITY_COMPARATOR.thenComparing(MediaType.QUALITY_VALUE_COMPARATOR));
  }
}

代码示例来源：origin: SonarSource/sonarqube

private ListDefinitionsWsResponse doHandle(Request request) {
 ListDefinitionsRequest wsRequest = toWsRequest(request);
 Optional<ComponentDto> component = loadComponent(wsRequest);
 Optional<String> qualifier = getQualifier(component);
 ListDefinitionsWsResponse.Builder wsResponse = ListDefinitionsWsResponse.newBuilder();
 propertyDefinitions.getAll().stream()
  .filter(definition -> qualifier.map(s -> definition.qualifiers().contains(s)).orElseGet(definition::global))
  .filter(definition -> wsRequest.getBranch() == null || SETTING_ON_BRANCHES.contains(definition.key()))
  .filter(definition -> settingsWsSupport.isVisible(definition.key(), definition, component))
  .sorted(comparing(PropertyDefinition::category, String::compareToIgnoreCase)
   .thenComparingInt(PropertyDefinition::index)
   .thenComparing(PropertyDefinition::name, String::compareToIgnoreCase))
  .forEach(definition -> addDefinition(definition, wsResponse));
 return wsResponse.build();
}

代码示例来源：origin: robolectric/robolectric

@Nonnull
private <T> List<Class<? extends T>> prioritize(Iterable<Class<? extends T>> iterable) {
 List<Class<? extends T>> serviceClasses = new ArrayList<>();
 for (Class<? extends T> serviceClass : iterable) {
  serviceClasses.add(serviceClass);
 }
 Comparator<Class<? extends T>> c = reverseOrder(comparing(PluginFinder::priority));
 c = c.thenComparing(Class::getName);
 serviceClasses.sort(c);
 return serviceClasses;
}

代码示例来源：origin: dropwizard/dropwizard

@Override
  public int compare(EndpointLogLine endpointA, EndpointLogLine endpointB) {
    return Comparator.<EndpointLogLine, String>comparing(endpoint -> endpoint.basePath)
        .thenComparing(endpoint -> endpoint.httpMethod, Comparator.nullsLast(Comparator.naturalOrder()))
        .compare(endpointA, endpointB);
  }
}

代码示例来源：origin: kiegroup/optaplanner

@Override
public int compare(SolverBenchmarkResult a, SolverBenchmarkResult b) {
  return Comparator
      .comparing(SolverBenchmarkResult::getFailureCount, Comparator.reverseOrder())
      .thenComparing(SolverBenchmarkResult::getTotalScore, resilientScoreComparator)
      .thenComparing(worstScoreSolverRankingComparator)
      .compare(a, b);
}

代码示例来源：origin: speedment/speedment

@Override
public <U> Comparator<ENTITY> thenComparing(
    Function<? super ENTITY, ? extends U> keyExtractor,
    Comparator<? super U> keyComparator) {
  return asCombined().thenComparing(keyExtractor, keyComparator);
}

代码示例来源：origin: speedment/speedment

@Override
public <U extends Comparable<? super U>> Comparator<ENTITY>
thenComparing(Function<? super ENTITY, ? extends U> keyExtractor) {
  return asCombined().thenComparing(keyExtractor);
}

代码示例来源：origin: speedment/speedment

@Override
public Comparator<ENTITY> thenComparing(Comparator<? super ENTITY> other) {
  return asCombined().thenComparing(other);
}

代码示例来源：origin: kiegroup/optaplanner

@Override
public int compare(SubSingleBenchmarkResult a, SubSingleBenchmarkResult b) {
  return Comparator
      // Reverse, less is better (redundant: failed benchmarks don't get ranked at all)
      .comparing(SubSingleBenchmarkResult::hasAnyFailure, Comparator.reverseOrder())
      .thenComparing(SubSingleBenchmarkResult::getRanking, Comparator.naturalOrder())
      .compare(a, b);
}

代码示例来源：origin: kiegroup/optaplanner

@Override
public int compare(SubSingleBenchmarkResult a, SubSingleBenchmarkResult b) {
  return Comparator
      // Reverse, less is better (redundant: failed benchmarks don't get ranked at all)
      .comparing(SubSingleBenchmarkResult::hasAnyFailure, Comparator.reverseOrder())
      .thenComparing(SubSingleBenchmarkResult::getScore, resilientScoreComparator)
      .compare(a, b);
}

代码示例来源：origin: kiegroup/optaplanner

@Override
public int compare(SingleBenchmarkResult a, SingleBenchmarkResult b) {
  return Comparator
      // Reverse, less is better (redundant: failed benchmarks don't get ranked at all)
      .comparing(SingleBenchmarkResult::hasAnyFailure, Comparator.reverseOrder())
      .thenComparing(SingleBenchmarkResult::getTotalScore, resilientScoreComparator)
      .compare(a, b);
}

代码示例来源：origin: apache/incubator-druid

@VisibleForTesting
static String[] getFrequentLocations(final Stream<String> locations)
{
 final Map<String, Long> locationCountMap = locations.collect(
   Collectors.groupingBy(location -> location, Collectors.counting())
 );
 final Comparator<Map.Entry<String, Long>> valueComparator =
   Map.Entry.comparingByValue(Comparator.reverseOrder());
 final Comparator<Map.Entry<String, Long>> keyComparator =
   Map.Entry.comparingByKey();
 return locationCountMap
   .entrySet().stream()
   .sorted(valueComparator.thenComparing(keyComparator))
   .limit(3)
   .map(Map.Entry::getKey)
   .toArray(String[]::new);
}

代码示例来源：origin: allure-framework/allure2

private List<Parameter> getParameters(final TestResult result) {
  final TreeSet<Parameter> parametersSet = new TreeSet<>(
      comparing(Parameter::getName, nullsFirst(naturalOrder()))
          .thenComparing(Parameter::getValue, nullsFirst(naturalOrder()))
  );
  parametersSet.addAll(convert(result.getParameters(), this::convert));
  return new ArrayList<>(parametersSet);
}

代码示例来源：origin: allure-framework/allure2

private List<Parameter> getParameters(final TestCaseResult source) {
  final TreeSet<Parameter> parametersSet = new TreeSet<>(
      comparing(Parameter::getName, nullsFirst(naturalOrder()))
          .thenComparing(Parameter::getValue, nullsFirst(naturalOrder()))
  );
  parametersSet.addAll(convert(source.getParameters(), this::hasArgumentType, this::convert));
  return new ArrayList<>(parametersSet);
}

代码示例来源：origin: graphhopper/graphhopper

private void parseSolutionsAndAddToResponse(List<List<Label.Transition>> solutions, PointList waypoints) {
  for (List<Label.Transition> solution : solutions) {
    final List<Trip.Leg> legs = tripFromLabel.getTrip(translation, graphExplorer, accessEgressWeighting, solution);
    final PathWrapper pathWrapper = tripFromLabel.createPathWrapper(translation, waypoints, legs);
    pathWrapper.setImpossible(solution.stream().anyMatch(t -> t.label.impossible));
    pathWrapper.setTime((solution.get(solution.size()-1).label.currentTime - solution.get(0).label.currentTime));
    response.add(pathWrapper);
  }
  Comparator<PathWrapper> c = Comparator.comparingInt(p -> (p.isImpossible() ? 1 : 0));
  Comparator<PathWrapper> d = Comparator.comparingDouble(PathWrapper::getTime);
  response.getAll().sort(c.thenComparing(d));
}

代码示例来源：origin: facebook/litho

/** Compares two {@link MethodParamModel}s based on name and annotations only. */
 public static Comparator<MethodParamModel> shallowParamComparator() {
  return Comparator.nullsLast(
    Comparator.comparing(MethodParamModel::getName)
      .thenComparing(
        (a, b) ->
          (a.getTypeName() == null && a.getTypeName() == b.getTypeName())
              || a.getTypeName().equals(b.getTypeName())
            ? 0
            : -1)
      .thenComparing((a, b) -> a.getAnnotations().equals(b.getAnnotations()) ? 0 : -1));
 }
}

代码示例来源：origin: google/error-prone

private static ImmutableList<MethodTree> sortedByArity(Iterable<MethodTree> methodTrees) {
 return sortedCopyOf(comparingArity().thenComparing(comparingPositions()), methodTrees);
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void testChainedComparators() {
  Comparator<Dog> c = new PropertyComparator<>("lastName", false, true);
  Dog dog1 = new Dog();
  dog1.setFirstName("macy");
  dog1.setLastName("grayspots");
  Dog dog2 = new Dog();
  dog2.setFirstName("biscuit");
  dog2.setLastName("grayspots");
  assertTrue(c.compare(dog1, dog2) == 0);
  c = c.thenComparing(new PropertyComparator<>("firstName", false, true));
  assertTrue(c.compare(dog1, dog2) > 0);
  dog2.setLastName("konikk dog");
  assertTrue(c.compare(dog2, dog1) > 0);
}

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