本文整理了Java中java.util.Comparator.comparing()方法的一些代码示例，展示了Comparator.comparing()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.comparing()方法的具体详情如下：
包路径：java.util.Comparator
类名称：Comparator
方法名：comparing

Comparator.comparing介绍

暂无

代码示例

代码示例来源：origin: apache/incubator-druid

@VisibleForTesting
static void sortByInsertionTime(List<RemoteTaskRunnerWorkItem> tasks)
{
 Collections.sort(tasks, Comparator.comparing(RemoteTaskRunnerWorkItem::getQueueInsertionTime));
}

代码示例来源：origin: neo4j/neo4j

public void forEach( BiConsumer<String,URI> consumer )
{
  entries.stream().collect( Collectors.groupingBy( e -> e.key ) )
      .forEach( ( key, list ) -> list.stream()
          .max( Comparator.comparing( e -> e.precedence ) )
          .ifPresent( e -> consumer.accept( key, e.uri ) ) );
}

代码示例来源：origin: org.apache.ant/ant

@Override
public Enumeration<Object> keys() {
  return keyList.stream()
    .sorted(Comparator.comparing(Object::toString))
    .collect(Collectors.collectingAndThen(Collectors.toList(),
      Collections::enumeration));
}

代码示例来源：origin: neo4j/neo4j

@Override
  public String toString()
  {
    return params.entrySet().stream()
        .sorted( Comparator.comparing( Map.Entry::getKey ) )
        .map( entry -> entry.getKey() + "=" + obsfucateIfSecret( entry ) )
        .collect( Collectors.joining( ", ") );
  }
}

代码示例来源：origin: SonarSource/sonarqube

@Override
 public boolean matches(Issue issue) {
  DefaultIssue defaultIssue = (DefaultIssue) issue;
  Optional<String> lastPreviousStatus = defaultIssue.changes().stream()
   // exclude current change (if any)
   .filter(change -> change != defaultIssue.currentChange())
   .filter(change -> change.creationDate() != null)
   .sorted(Comparator.comparing(FieldDiffs::creationDate).reversed())
   .map(change -> change.get("status"))
   .filter(Objects::nonNull)
   .findFirst()
   .map(t -> (String) t.oldValue());

  return lastPreviousStatus.filter(this.expectedPreviousStatus::equals).isPresent();
 }
}

代码示例来源：origin: Graylog2/graylog2-server

/**
 * Assigns the minimum TTL found in the supplied DnsAnswers. The minimum makes sense, because this is the least
 * amount of time that at least one of the records is valid for.
 */
private void assignMinimumTTL(List<? extends DnsAnswer> dnsAnswers, LookupResult.Builder builder) {
  if (config.hasOverrideTTL()) {
    builder.cacheTTL(config.getCacheTTLOverrideMillis());
  } else {
    // Deduce minimum TTL on all TXT records. A TTL will always be returned by DNS server.
    builder.cacheTTL(dnsAnswers.stream()
                  .map(DnsAnswer::dnsTTL)
                  .min(Comparator.comparing(Long::valueOf)).get() * 1000);
  }
}

代码示例来源：origin: neo4j/neo4j

private void printCommands( Consumer<String> output )
{
  Map<AdminCommandSection,List<AdminCommand.Provider>> groupedProviders = groupProvidersBySection();
  AdminCommandSection.general()
      .printAllCommandsUnderSection( output, groupedProviders.remove( AdminCommandSection.general() ) );
  groupedProviders.entrySet().stream()
      .sorted( Comparator.comparing( groupedProvider -> groupedProvider.getKey().printable() ) )
      .forEach(entry -> entry.getKey().printAllCommandsUnderSection( output, entry.getValue() ) );
}

代码示例来源：origin: hs-web/hsweb-framework

private static Map<String, ClassProperty> createProperty(Class type) {
  List<String> fieldNames = Arrays.stream(type.getDeclaredFields())
      .map(Field::getName).collect(Collectors.toList());
  return Stream.of(propertyUtils.getPropertyDescriptors(type))
      .filter(property -> !property.getName().equals("class") && property.getReadMethod() != null && property.getWriteMethod() != null)
      .map(BeanClassProperty::new)
      //让字段有序
      .sorted(Comparator.comparing(property -> fieldNames.indexOf(property.name)))
      .collect(Collectors.toMap(ClassProperty::getName, Function.identity(), (k, k2) -> k, LinkedHashMap::new));
}

代码示例来源：origin: stackoverflow.com

Comparator<Song> songRatingComparator = Comparator.comparing(Song::getRating);
Collections.sort(songList, songRatingComparator.reversed());

代码示例来源：origin: Netflix/conductor

/**
 * Get the details about each queue.
 *
 * @return map of details about each queue.
 */
public Map<String, Long> getAllQueueDetails() {
  return queueDAO.queuesDetail().entrySet().stream()
      .sorted(Comparator.comparing(Entry::getKey))
      .collect(Collectors.toMap(Entry::getKey, Entry::getValue, (v1, v2) -> v1, LinkedHashMap::new));
}

代码示例来源：origin: SonarSource/sonarqube

@Override
public void execute(Context context) {
 DefaultIssue defaultIssue = (DefaultIssue) context.issue();
 String previousResolution = defaultIssue.changes().stream()
  // exclude current change (if any)
  .filter(change -> change != defaultIssue.currentChange())
  .filter(change -> change.creationDate() != null)
  .sorted(Comparator.comparing(FieldDiffs::creationDate).reversed())
  .map(this::parse)
  .filter(Objects::nonNull)
  .filter(StatusAndResolutionDiffs::hasResolution)
  .findFirst()
  .map(t -> t.newStatusClosed ? t.oldResolution : t.newResolution)
  .orElse(null);
 context.setResolution(previousResolution);
}

代码示例来源：origin: google/error-prone

@Override
 public OrganizedImports organizeImports(List<Import> imports) {

  // Group into static and non-static. Each group is a set sorted by type.
  Map<Boolean, ImmutableSortedSet<Import>> partionedByStatic =
    imports.stream()
      .collect(
        Collectors.partitioningBy(
          Import::isStatic, toImmutableSortedSet(Comparator.comparing(Import::getType))));

  return new OrganizedImports()
    // Add groups, in the appropriate order.
    .addGroups(partionedByStatic, order.groupOrder());
 }
}

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

private static Optional<ExecutorInfo> extractLatestExecutor(final List<LaunchResults> launches) {
  final Comparator<ExecutorInfo> comparator = comparing(ExecutorInfo::getBuildOrder, nullsFirst(naturalOrder()));
  return launches.stream()
      .map(launch -> launch.getExtra(EXECUTORS_BLOCK_NAME))
      .filter(Optional::isPresent)
      .map(Optional::get)
      .filter(ExecutorInfo.class::isInstance)
      .map(ExecutorInfo.class::cast)
      .max(comparator);
}

代码示例来源：origin: SonarSource/sonarqube

private void indexModulesRecursively(DefaultInputModule module, ExclusionCounter exclusionCounter) {
 inputModuleHierarchy.children(module).stream().sorted(Comparator.comparing(DefaultInputModule::key)).forEach(m -> indexModulesRecursively(m, exclusionCounter));
 index(module, exclusionCounter);
}

代码示例来源：origin: shekhargulati/java8-the-missing-tutorial

public List<String> allReadingTasks(List<Task> tasks) {
  return tasks.stream().
      filter(task -> task.getType() == TaskType.READING).
      sorted(comparing(Task::getCreatedOn)).
      map(Task::getTitle).
      collect(toList());
}

代码示例来源：origin: apache/geode

public static void sortByDistanceAscending(List<GeoRadiusResponseElement> elements) {
 Collections.sort(elements, Comparator.comparing(GeoRadiusResponseElement::getDistFromCenter));
}

代码示例来源：origin: speedment/speedment

private String sqlColumnList(Predicate<Column> preFilter, Function<String, String> postMapper) {
  return table.columns()
    .sorted(comparing(Column::getOrdinalPosition))
    .filter(Column::isEnabled)
    .filter(preFilter)
    .map(Column::getName)
    .map(naming::encloseField)
    .map(postMapper)
    .collect(joining(","));
}

代码示例来源：origin: SonarSource/sonarqube

private UnaryOperator<ListResponse.Builder> addNotifications(DbSession dbSession, UserDto user) {
 return response -> {
  List<PropertyDto> properties = dbClient.propertiesDao().selectByQuery(PropertyQuery.builder().setUserId(user.getId()).build(), dbSession);
  Map<Long, ComponentDto> componentsById = searchProjects(dbSession, properties);
  Map<String, OrganizationDto> organizationsByUuid = getOrganizations(dbSession, componentsById.values());
  Predicate<PropertyDto> isNotification = prop -> prop.getKey().startsWith("notification.");
  Predicate<PropertyDto> isComponentInDb = prop -> prop.getResourceId() == null || componentsById.containsKey(prop.getResourceId());
  Notification.Builder notification = Notification.newBuilder();
  properties.stream()
   .filter(isNotification)
   .filter(channelAndDispatcherAuthorized())
   .filter(isComponentInDb)
   .map(toWsNotification(notification, organizationsByUuid, componentsById))
   .sorted(comparing(Notification::getProject, nullsFirst(naturalOrder()))
    .thenComparing(comparing(Notification::getChannel))
    .thenComparing(comparing(Notification::getType)))
   .forEach(response::addNotifications);
  return response;
 };
}

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

private static Optional<ExecutorInfo> extractLatestExecutor(final List<LaunchResults> launches) {
  final Comparator<ExecutorInfo> comparator = comparing(ExecutorInfo::getBuildOrder, nullsFirst(naturalOrder()));
  return launches.stream()
      .map(launch -> launch.getExtra(EXECUTORS_BLOCK_NAME))
      .filter(Optional::isPresent)
      .map(Optional::get)
      .filter(ExecutorInfo.class::isInstance)
      .map(ExecutorInfo.class::cast)
      .max(comparator);
}

代码示例来源：origin: neo4j/neo4j

@Admin
@Description( "List the currently active config of Neo4j." )
@Procedure( name = "dbms.listConfig", mode = DBMS )
public Stream<ConfigResult> listConfig( @Name( value = "searchString", defaultValue = "" ) String searchString )
{
  Config config = graph.getDependencyResolver().resolveDependency( Config.class );
  String lowerCasedSearchString = searchString.toLowerCase();
  return config.getConfigValues().values().stream()
      .filter( c -> !c.internal() )
      .filter( c -> c.name().toLowerCase().contains( lowerCasedSearchString ) )
      .map( ConfigResult::new )
      .sorted( Comparator.comparing( c -> c.name ) );
}