本文整理了Java中java.util.Comparator.naturalOrder()
方法的一些代码示例,展示了Comparator.naturalOrder()
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.naturalOrder()
方法的具体详情如下:
包路径:java.util.Comparator
类名称:Comparator
方法名:naturalOrder
暂无
代码示例来源:origin: apache/incubator-druid
@Override
public Comparator<Integer> getComparator()
{
return Comparator.naturalOrder();
}
代码示例来源:origin: apache/incubator-druid
@Override
public Comparator<Double> getComparator()
{
return Comparator.naturalOrder();
}
代码示例来源:origin: apache/incubator-druid
@Override
public Comparator<Integer> getComparator()
{
return Comparator.naturalOrder();
}
}
代码示例来源:origin: apache/incubator-druid
@Override
public Comparator<String> getComparator()
{
return Comparator.nullsFirst(Comparator.naturalOrder());
}
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: vavr-io/vavr
/**
* Converts this to a {@link Map}.
*
* @param f A function that maps an element to a key/value pair represented by Tuple2
* @param <K> The key type
* @param <V> The value type
* @return A new {@link TreeMap}.
*/
default <K extends Comparable<? super K>, V> SortedMap<K, V> toSortedMap(Function<? super T, ? extends Tuple2<? extends K, ? extends V>> f) {
Objects.requireNonNull(f, "f is null");
return toSortedMap(Comparator.naturalOrder(), f);
}
代码示例来源:origin: SonarSource/sonarqube
private static List<Long> selectVersions(Connection connection) throws SQLException {
try (Statement statement = connection.createStatement();
ResultSet resultSet = statement.executeQuery("select version from " + SCHEMA_MIGRATIONS_TABLE)) {
List<Long> res = new ArrayList<>();
while (resultSet.next()) {
res.add(resultSet.getLong(1));
}
return res.stream()
.sorted(Comparator.naturalOrder())
.collect(toList());
}
}
}
代码示例来源:origin: graphql-java/graphql-java
private <T, U extends Comparable<? super U>> Comparator<T> comparing(
Function<? super T, ? extends U> keyExtractor) {
return Comparator.comparing(keyExtractor, nullsLast(naturalOrder()));
}
代码示例来源:origin: prestodb/presto
public MergingPageIterator(
Collection<Iterator<Page>> iterators,
List<Type> types,
List<Integer> sortFields,
List<SortOrder> sortOrders)
{
requireNonNull(sortFields, "sortFields is null");
requireNonNull(sortOrders, "sortOrders is null");
checkArgument(sortFields.size() == sortOrders.size(), "sortFields and sortOrders size must match");
this.types = ImmutableList.copyOf(requireNonNull(types, "types is null"));
this.sortFields = ImmutableList.copyOf(sortFields);
this.sortOrders = ImmutableList.copyOf(sortOrders);
this.pageBuilder = new PageBuilder(types);
this.pagePositions = mergeSorted(
iterators.stream()
.map(pages -> concat(transform(pages, PagePositionIterator::new)))
.collect(toList()),
naturalOrder());
}
代码示例来源:origin: google/error-prone
private static String formatLockString(Set<GuardedByExpression> locks) {
ImmutableList<String> sortedUnhandled =
FluentIterable.from(locks)
.transform(Functions.toStringFunction())
.toSortedList(Comparator.naturalOrder());
return Joiner.on(", ").join(sortedUnhandled);
}
代码示例来源:origin: SonarSource/sonarqube
@Override
public Optional<ReadError> read(DbFileSources.Line.Builder lineBuilder) {
Predicate<Map.Entry<TextBlock, Integer>> containsLine = new TextBlockContainsLine(lineBuilder.getLine());
// list is sorted to cope with the non-guaranteed order of Map entries which would trigger false detection of changes
// in {@link DbFileSources.Line#getDuplicationList()}
duplicatedTextBlockIndexByTextBlock.entrySet().stream()
.filter(containsLine)
.map(Map.Entry::getValue)
.sorted(Comparator.naturalOrder())
.forEach(lineBuilder::addDuplication);
return Optional.empty();
}
代码示例来源:origin: google/guava
Comparator<? super E> comparator = spliterator.getComparator();
if (comparator == null) {
comparator = (Comparator) Comparator.naturalOrder();
代码示例来源:origin: google/guava
public void testEmptiesFirst() {
Optional<String> empty = Optional.empty();
Optional<String> abc = Optional.of("abc");
Optional<String> z = Optional.of("z");
Comparator<Optional<String>> comparator = Comparators.emptiesFirst(comparing(String::length));
Helpers.testComparator(comparator, empty, z, abc);
// Just demonstrate that no explicit type parameter is required
comparator = Comparators.emptiesFirst(naturalOrder());
}
代码示例来源:origin: google/guava
public void testEmptiesLast() {
Optional<String> empty = Optional.empty();
Optional<String> abc = Optional.of("abc");
Optional<String> z = Optional.of("z");
Comparator<Optional<String>> comparator = Comparators.emptiesLast(comparing(String::length));
Helpers.testComparator(comparator, z, abc, empty);
// Just demonstrate that no explicit type parameter is required
comparator = Comparators.emptiesLast(naturalOrder());
}
}
代码示例来源:origin: spring-projects/spring-framework
@Test
public void testStringArrayToResourceArray() {
conversionService.addConverter(new MyStringArrayToResourceArrayConverter());
Resource[] converted = conversionService.convert(new String[] { "x1", "z3" }, Resource[].class);
List<String> descriptions = Arrays.stream(converted).map(Resource::getDescription).sorted(naturalOrder()).collect(toList());
assertEquals(Arrays.asList("1", "3"), descriptions);
}
代码示例来源:origin: google/guava
public void testGreatestCollector() {
CollectorTester.of(Comparators.<Integer>greatest(2, Comparator.naturalOrder()))
.expectCollects(Arrays.asList(6, 5), 1, 2, 3, 4, 5, 6)
.expectCollects(Arrays.asList(1), 1)
.expectCollects(Collections.emptyList());
}
代码示例来源:origin: google/guava
public void testLeastCollector() {
CollectorTester.of(Comparators.<Integer>least(2, Comparator.naturalOrder()))
.expectCollects(Arrays.asList(1, 2), 1, 2, 3, 4, 5, 6)
.expectCollects(Arrays.asList(1), 1)
.expectCollects(Collections.emptyList());
}
代码示例来源:origin: ben-manes/caffeine
@Test(dataProvider = "snapshot")
public void snapshot(boolean ascending, int limit, long nanos, Function<Long, Long> transformer) {
int count = 21;
timerWheel.nanos = nanos;
int expected = Math.min(limit, count);
Comparator<Long> order = ascending ? Comparator.naturalOrder() : Comparator.reverseOrder();
List<Long> times = IntStream.range(0, count).mapToLong(i -> {
long time = nanos + TimeUnit.SECONDS.toNanos(2 << i);
timerWheel.schedule(new Timer(time));
return time;
}).boxed().sorted(order).collect(toList()).subList(0, expected);
when(transformer.apply(anyLong())).thenAnswer(invocation -> invocation.getArgument(0));
assertThat(snapshot(ascending, limit, transformer), is(times));
verify(transformer, times(expected)).apply(anyLong());
}
代码示例来源:origin: apache/hive
@Override
public int compare(Operator<?> o1, Operator<?> o2) {
Long id1 = Long.valueOf(o1.getIdentifier());
Long id2 = Long.valueOf(o2.getIdentifier());
int c0 = Objects.compare(o1.getOperatorName(), o2.getOperatorName(), Comparator.naturalOrder());
if (c0 != 0) {
return c0;
}
return Long.compare(id1, id2);
}
};
代码示例来源:origin: google/guava
public void testToImmutableSortedMapMerging() {
Collector<Entry<String, Integer>, ?, ImmutableSortedMap<String, Integer>> collector =
ImmutableSortedMap.toImmutableSortedMap(
Comparator.naturalOrder(), Entry::getKey, Entry::getValue, Integer::sum);
Equivalence<ImmutableMap<String, Integer>> equivalence =
Equivalence.equals()
.<Entry<String, Integer>>pairwise()
.onResultOf(ImmutableMap::entrySet);
CollectorTester.of(collector, equivalence)
.expectCollects(
ImmutableSortedMap.of("one", 1, "three", 3, "two", 4),
mapEntry("one", 1),
mapEntry("two", 2),
mapEntry("three", 3),
mapEntry("two", 2));
}
}
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