Example usage for java.util Set stream

Introduction

In this page you can find the example usage for java.util Set stream.

Prototype

default Stream<E> stream()

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:Main.java

public static void main(String[] args) {
    Set<String> names = new HashSet<>();
    names.add("XML");
    names.add("Java");

    Stream<String> sequentialStream = names.stream();
    sequentialStream.forEach(System.out::println);

    Stream<String> parallelStream = names.parallelStream();
    parallelStream.forEach(System.out::println);
}

From source file:Main.java

public static void main(String[] args) {
    Set<Integer> numberSet = new HashSet<Integer>() {
        {//from w  w w  . jav a2s  .  c  o  m
            add(1);
            add(2);
            add(3);
        }
    };
    Stream<Integer> collectionStream = numberSet.stream();

    System.out.println(Arrays.toString(collectionStream.toArray()));
}

From source file:com.ginema.api.reflection.ReflectionUtils.java

public static boolean isAssignableFrom(Class c, Set<Class> allowedClasses) {
    return allowedClasses.stream().filter(clazz -> ClassUtils.isAssignable(c, clazz, true)).findFirst()
            .isPresent();//from   w  w w . j a v a2s  . c o m
}

From source file:edu.pitt.dbmi.ccd.db.specification.GroupSpecification.java

private static List<Predicate> inNameOrDescription(Root<Group> root, CriteriaBuilder cb, Set<String> terms) {
    return terms.stream().map(t -> containsLike(t))
            .map(t -> cb.or(nameContains(root, cb, t), descriptionContains(root, cb, t)))
            .collect(Collectors.toList());
}

From source file:edu.pitt.dbmi.ccd.db.specification.GroupSpecification.java

private static List<Predicate> notInNameOrDescription(Root<Group> root, CriteriaBuilder cb, Set<String> terms) {
    return terms.stream().map(t -> containsLike(t))
            .map(t -> cb.not(cb.or(nameContains(root, cb, t), descriptionContains(root, cb, t))))
            .collect(Collectors.toList());
}

From source file:edu.pitt.dbmi.ccd.db.specification.VocabularySpecification.java

private static List<Predicate> inNameOrDescription(Root<Vocabulary> root, CriteriaBuilder cb,
        Set<String> terms) {
    return terms.stream().map(t -> containsLike(t))
            .map(t -> cb.or(nameContains(root, cb, t), descriptionContains(root, cb, t)))
            .collect(Collectors.toList());
}

From source file:edu.pitt.dbmi.ccd.db.specification.VocabularySpecification.java

private static List<Predicate> notInNameOrDescription(Root<Vocabulary> root, CriteriaBuilder cb,
        Set<String> terms) {
    return terms.stream().map(t -> containsLike(t))
            .map(t -> cb.not(cb.or(nameContains(root, cb, t), descriptionContains(root, cb, t))))
            .collect(Collectors.toList());
}

From source file:com.hengyi.japp.tools.PYUtil.java

public static List<String> getFirstSpell(String cs) {
    if (isBlank(cs)) {
        return null;
    }//from  w w w . j  ava2 s  . c om
    List<String> result = null;
    List<Set<Character>> cs_fpys = cs.chars().mapToObj(i -> toHanyuPinyinStringArray((char) i))
            .map(a -> Arrays.stream(a).map(s -> s.charAt(0)).collect(Collectors.toSet()))
            .collect(Collectors.toList());
    for (Set<Character> fpys : cs_fpys) {
        if (result == null) {
            result = fpys.stream().map(String::valueOf).collect(Collectors.toList());
        } else {
            Stream<String> tmps = result.stream().flatMap(s -> fpys.stream().map(fpy -> s + fpy));
            result = tmps.collect(Collectors.toList());
        }
    }
    return result;
}

From source file:io.neba.core.util.JsonUtil.java

/**
 * @param map must not be <code>null</code>.
 *///from  w w w.jav a  2 s.  c om
public static String toJson(Map<?, ?> map) {
    if (map == null) {
        throw new IllegalArgumentException("Method parameter map must not be null");
    }

    Set<? extends Map.Entry<?, ?>> entries = map.entrySet();
    return entries.stream().map(e -> toJson(e.getKey()) + ':' + toJson(e.getValue()))
            .reduce((l, r) -> l + ',' + r).map(s -> '{' + s + '}').orElse("{}");
}

From source file:com.cloudera.oryx.example.batch.ExampleBatchLayerUpdate.java

public static Map<String, Integer> countDistinctOtherWords(JavaPairRDD<String, String> data) {
    return data.values().flatMapToPair(line -> {
        Set<String> distinctTokens = new HashSet<>(Arrays.asList(line.split(" ")));
        return distinctTokens.stream()
                .flatMap(a -> distinctTokens.stream().filter(b -> !a.equals(b)).map(b -> new Tuple2<>(a, b)))
                .iterator();// w  ww  .  j a  v  a 2  s  . c om
    }).distinct().mapValues(a -> 1).reduceByKey((c1, c2) -> c1 + c2).collectAsMap();
}