Package com.landawn.abacus.util

Class Fn.Suppliers

java.lang.Object
com.landawn.abacus.util.Fn.Suppliers
Enclosing class:
Fn
public static final class Fn.Suppliers extends Object

  • Method Details

    • ofInstance

      public static <T> Supplier<T> ofInstance(T instance)
      Returns a supplier that always supplies instance.
      Type Parameters:
      T -
      Parameters:
      instance -
      Returns:

    • ofUUID

      public static Supplier<String> ofUUID()
      Returns:

    • ofGUID

      public static Supplier<String> ofGUID()
      Returns:

    • ofEmptyBooleanArray

      public static Supplier<boolean[]> ofEmptyBooleanArray()
      Of empty boolean array.
      Returns:

    • ofEmptyCharArray

      public static Supplier<char[]> ofEmptyCharArray()
      Of empty char array.
      Returns:

    • ofEmptyByteArray

      public static Supplier<byte[]> ofEmptyByteArray()
      Of empty byte array.
      Returns:

    • ofEmptyShortArray

      public static Supplier<short[]> ofEmptyShortArray()
      Of empty short array.
      Returns:

    • ofEmptyIntArray

      public static Supplier<int[]> ofEmptyIntArray()
      Of empty int array.
      Returns:

    • ofEmptyLongArray

      public static Supplier<long[]> ofEmptyLongArray()
      Of empty long array.
      Returns:

    • ofEmptyFloatArray

      public static Supplier<float[]> ofEmptyFloatArray()
      Of empty float array.
      Returns:

    • ofEmptyDoubleArray

      public static Supplier<double[]> ofEmptyDoubleArray()
      Of empty double array.
      Returns:

    • ofEmptyStringArray

      public static Supplier<String[]> ofEmptyStringArray()
      Of empty string array.
      Returns:

    • ofEmptyObjectArray

      public static Supplier<Object[]> ofEmptyObjectArray()
      Of empty object array.
      Returns:

    • ofEmptyString

      public static Supplier<String> ofEmptyString()
      Of empty String.
      Returns:

    • ofBooleanList

      public static Supplier<BooleanList> ofBooleanList()
      Of boolean list.
      Returns:

    • ofCharList

      public static Supplier<CharList> ofCharList()
      Of char list.
      Returns:

    • ofByteList

      public static Supplier<ByteList> ofByteList()
      Of byte list.
      Returns:

    • ofShortList

      public static Supplier<ShortList> ofShortList()
      Of short list.
      Returns:

    • ofIntList

      public static Supplier<IntList> ofIntList()
      Of int list.
      Returns:

    • ofLongList

      public static Supplier<LongList> ofLongList()
      Of long list.
      Returns:

    • ofFloatList

      public static Supplier<FloatList> ofFloatList()
      Of float list.
      Returns:

    • ofDoubleList

      public static Supplier<DoubleList> ofDoubleList()
      Of double list.
      Returns:

    • ofList

      public static <T> Supplier<List<T>> ofList()
      Type Parameters:
      T -
      Returns:

    • ofLinkedList

      public static <T> Supplier<LinkedList<T>> ofLinkedList()
      Of linked list.
      Type Parameters:
      T -
      Returns:

    • ofSet

      public static <T> Supplier<Set<T>> ofSet()
      Type Parameters:
      T -
      Returns:

    • ofLinkedHashSet

      public static <T> Supplier<Set<T>> ofLinkedHashSet()
      Of linked hash set.
      Type Parameters:
      T -
      Returns:

    • ofSortedSet

      public static <T> Supplier<SortedSet<T>> ofSortedSet()
      Of sorted set.
      Type Parameters:
      T -
      Returns:

    • ofNavigableSet

      public static <T> Supplier<NavigableSet<T>> ofNavigableSet()
      Of navigable set.
      Type Parameters:
      T -
      Returns:

    • ofTreeSet

      public static <T> Supplier<TreeSet<T>> ofTreeSet()
      Of tree set.
      Type Parameters:
      T -
      Returns:

    • ofQueue

      public static <T> Supplier<Queue<T>> ofQueue()
      Type Parameters:
      T -
      Returns:

    • ofDeque

      public static <T> Supplier<Deque<T>> ofDeque()
      Type Parameters:
      T -
      Returns:

    • ofArrayDeque

      public static <T> Supplier<ArrayDeque<T>> ofArrayDeque()
      Of array deque.
      Type Parameters:
      T -
      Returns:

    • ofLinkedBlockingQueue

      public static <T> Supplier<LinkedBlockingQueue<T>> ofLinkedBlockingQueue()
      Of linked blocking queue.
      Type Parameters:
      T -
      Returns:

    • ofArrayBlockingQueue

      public static <T> Supplier<ArrayBlockingQueue<T>> ofArrayBlockingQueue()
      Type Parameters:
      T -
      Returns:

    • ofLinkedBlockingDeque

      public static <T> Supplier<LinkedBlockingDeque<T>> ofLinkedBlockingDeque()
      Type Parameters:
      T -
      Returns:

    • ofConcurrentLinkedQueue

      public static <T> Supplier<ConcurrentLinkedQueue<T>> ofConcurrentLinkedQueue()
      Of concurrent linked queue.
      Type Parameters:
      T -
      Returns:

    • ofPriorityQueue

      public static <T> Supplier<PriorityQueue<T>> ofPriorityQueue()
      Of priority queue.
      Type Parameters:
      T -
      Returns:

    • ofMap

      public static <K, V> Supplier<Map<K,V>> ofMap()
      Type Parameters:
      K - the key type
      V - the value type
      Returns:

    • ofLinkedHashMap

      public static <K, V> Supplier<Map<K,V>> ofLinkedHashMap()
      Of linked hash map.
      Type Parameters:
      K - the key type
      V - the value type
      Returns:

    • ofIdentityHashMap

      public static <K, V> Supplier<IdentityHashMap<K,V>> ofIdentityHashMap()
      Of identity hash map.
      Type Parameters:
      K - the key type
      V - the value type
      Returns:

    • ofSortedMap

      public static <K, V> Supplier<SortedMap<K,V>> ofSortedMap()
      Of sorted map.
      Type Parameters:
      K - the key type
      V - the value type
      Returns:

    • ofNavigableMap

      public static <K, V> Supplier<NavigableMap<K,V>> ofNavigableMap()
      Of navigable map.
      Type Parameters:
      K - the key type
      V - the value type
      Returns:

    • ofTreeMap

      public static <K, V> Supplier<TreeMap<K,V>> ofTreeMap()
      Of tree map.
      Type Parameters:
      K - the key type
      V - the value type
      Returns:

    • ofConcurrentMap

      public static <K, V> Supplier<ConcurrentMap<K,V>> ofConcurrentMap()
      Of concurrent map.
      Type Parameters:
      K - the key type
      V - the value type
      Returns:

    • ofConcurrentHashMap

      public static <K, V> Supplier<ConcurrentHashMap<K,V>> ofConcurrentHashMap()
      Type Parameters:
      K -
      V -
      Returns:

    • ofConcurrentHashSet

      public static <T> Supplier<Set<T>> ofConcurrentHashSet()
      Type Parameters:
      T -
      Returns:

    • ofBiMap

      public static <K, V> Supplier<BiMap<K,V>> ofBiMap()
      Type Parameters:
      K -
      V -
      Returns:

    • ofMultiset

      public static <T> Supplier<Multiset<T>> ofMultiset()
      Type Parameters:
      T -
      Returns:

    • ofMultiset

      public static <T> Supplier<Multiset<T>> ofMultiset(Class<? extends Map> valueMapType)
      Type Parameters:
      T -
      Parameters:
      valueMapType -
      Returns:

    • ofMultiset

      public static <T> Supplier<Multiset<T>> ofMultiset(Supplier<? extends Map<T,?>> mapSupplier)
      Type Parameters:
      T -
      Parameters:
      mapSupplier -
      Returns:

    • ofLongMultiset

      public static <T> Supplier<LongMultiset<T>> ofLongMultiset()
      Type Parameters:
      T -
      Returns:

    • ofLongMultiset

      public static <T> Supplier<LongMultiset<T>> ofLongMultiset(Class<? extends Map> valueMapType)
      Type Parameters:
      T -
      Parameters:
      valueMapType -
      Returns:

    • ofLongMultiset

      public static <T> Supplier<LongMultiset<T>> ofLongMultiset(Supplier<? extends Map<T,?>> mapSupplier)
      Type Parameters:
      T -
      Parameters:
      mapSupplier -
      Returns:

    • ofListMultimap

      public static <K, E> Supplier<ListMultimap<K,E>> ofListMultimap()
      Type Parameters:
      K -
      E -
      Returns:

    • ofListMultimap

      public static <K, E> Supplier<ListMultimap<K,E>> ofListMultimap(Class<? extends Map> mapType)
      Type Parameters:
      K -
      E -
      Parameters:
      mapType -
      Returns:

    • ofListMultimap

      public static <K, E> Supplier<ListMultimap<K,E>> ofListMultimap(Class<? extends Map> mapType, Class<? extends List> valueType)
      Type Parameters:
      K -
      E -
      Parameters:
      mapType -
      valueType -
      Returns:

    • ofListMultimap

      public static <K, E> Supplier<ListMultimap<K,E>> ofListMultimap(Supplier<? extends Map<K,List<E>>> mapSupplier, Supplier<? extends List<E>> valueSupplier)
      Type Parameters:
      K -
      E -
      Parameters:
      mapSupplier -
      valueSupplier -
      Returns:

    • ofSetMultimap

      public static <K, E> Supplier<SetMultimap<K,E>> ofSetMultimap()
      Type Parameters:
      K -
      E -
      Returns:

    • ofSetMultimap

      public static <K, E> Supplier<SetMultimap<K,E>> ofSetMultimap(Class<? extends Map> mapType)
      Type Parameters:
      K -
      E -
      Parameters:
      mapType -
      Returns:

    • ofSetMultimap

      public static <K, E> Supplier<SetMultimap<K,E>> ofSetMultimap(Class<? extends Map> mapType, Class<? extends Set> valueType)
      Type Parameters:
      K -
      E -
      Parameters:
      mapType -
      valueType -
      Returns:

    • ofSetMultimap

      public static <K, E> Supplier<SetMultimap<K,E>> ofSetMultimap(Supplier<? extends Map<K,Set<E>>> mapSupplier, Supplier<? extends Set<E>> valueSupplier)
      Type Parameters:
      K -
      E -
      Parameters:
      mapSupplier -
      valueSupplier -
      Returns:

    • ofMultimap

      public static <K, E, V extends Collection<E>> Supplier<Multimap<K,E,V>> ofMultimap(Supplier<? extends Map<K,V>> mapSupplier, Supplier<? extends V> valueSupplier)
      Type Parameters:
      K -
      E -
      V -
      Parameters:
      mapSupplier -
      valueSupplier -
      Returns:

    • ofStringBuilder

      public static Supplier<StringBuilder> ofStringBuilder()
      Of string builder.
      Returns:

    • ofCollection

      public static <T> Supplier<? extends Collection<T>> ofCollection(Class<? extends Collection> targetClass)
      Type Parameters:
      T -
      Parameters:
      targetClass -
      Returns:

    • ofMap

      public static <K, V> Supplier<? extends Map<K,V>> ofMap(Class<? extends Map> targetClass)
      Type Parameters:
      K -
      V -
      Parameters:
      targetClass -
      Returns:

    • registerForCollection

      public static <T extends Collection> boolean registerForCollection(Class<T> targetClass, Supplier<T> supplier)
      Type Parameters:
      T -
      Parameters:
      targetClass -
      supplier -
      Returns:

    • registerForMap

      public static <T extends Map> boolean registerForMap(Class<T> targetClass, Supplier<T> supplier)
      Type Parameters:
      T -
      Parameters:
      targetClass -
      supplier -
      Returns:

    • ofImmutableList

      @Deprecated public static Supplier<ImmutableList<?>> ofImmutableList()
      Deprecated.
      unsupported operation.
      Returns:
      Throws:
      UnsupportedOperationException - the unsupported operation exception

    • ofImmutableSet

      @Deprecated public static Supplier<ImmutableSet<?>> ofImmutableSet()
      Deprecated.
      unsupported operation.
      Returns:
      Throws:
      UnsupportedOperationException - the unsupported operation exception

    • ofImmutableMap

      @Deprecated public static Supplier<ImmutableMap<?,?>> ofImmutableMap()
      Deprecated.
      unsupported operation.
      Returns:
      Throws:
      UnsupportedOperationException - the unsupported operation exception

    • single

      @Deprecated @SequentialOnly @Stateful public static <T, C extends Collection<T>> Supplier<? extends C> single(Supplier<? extends C> supplier)
      Deprecated.
      Type Parameters:
      T -
      C -
      Parameters:
      supplier -
      Returns: