Package it.unimi.dsi.fastutil.bytes

Class ByteCollections.EmptyCollection

java.lang.Object
java.util.AbstractCollection<java.lang.Byte>
it.unimi.dsi.fastutil.bytes.AbstractByteCollection
it.unimi.dsi.fastutil.bytes.ByteCollections.EmptyCollection
All Implemented Interfaces:
ByteCollection, ByteIterable, java.lang.Iterable<java.lang.Byte>, java.util.Collection<java.lang.Byte>
Direct Known Subclasses:
ByteBigLists.EmptyBigList, ByteLists.EmptyList, ByteSets.EmptySet
Enclosing class:
ByteCollections
public abstract static class ByteCollections.EmptyCollection
extends AbstractByteCollection
An immutable class representing an empty type-specific collection.

This class may be useful to implement your own in case you subclass a type-specific collection.

  • Method Summary

    Modifier and Type Method Description
    boolean addAll​(ByteCollection c)
    Adds all elements of the given type-specific collection to this collection.
    boolean addAll​(java.util.Collection<? extends java.lang.Byte> c)
    void clear()  
    boolean contains​(byte k)
    Returns true if this collection contains the specified element.
    boolean containsAll​(ByteCollection c)
    Checks whether this collection contains all elements from the given type-specific collection.
    boolean containsAll​(java.util.Collection<?> c)
    boolean equals​(java.lang.Object o)  
    void forEach​(ByteConsumer action)
    Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.
    void forEach​(java.util.function.Consumer<? super java.lang.Byte> action)
    Deprecated.
    int hashCode()  
    IntIterator intIterator()
    Returns a widened primitive iterator on the elements of this collection.
    IntSpliterator intSpliterator()
    Returns widened primitive spliterator on the elements of this collection.
    ByteBidirectionalIterator iterator()
    Returns a type-specific iterator on the elements of this collection.
    boolean removeAll​(ByteCollection c)
    Remove from this collection all elements in the given type-specific collection.
    boolean removeAll​(java.util.Collection<?> c)
    boolean removeIf​(BytePredicate filter)
    Remove from this collection all elements which satisfy the given predicate.
    boolean removeIf​(java.util.function.Predicate<? super java.lang.Byte> filter)
    Deprecated.
    boolean retainAll​(ByteCollection c)
    Retains in this collection only elements from the given type-specific collection.
    boolean retainAll​(java.util.Collection<?> c)
    int size()  
    ByteSpliterator spliterator()
    Returns a type-specific spliterator on the elements of this collection.
    java.lang.Object[] toArray()  
    <T> T[] toArray​(T[] array)  
    byte[] toByteArray()
    Returns a primitive type array containing the items of this collection.
    byte[] toByteArray​(byte[] a)
    Deprecated.

    Methods inherited from class it.unimi.dsi.fastutil.bytes.AbstractByteCollection

    add, add, contains, rem, remove, toArray, toString

    Methods inherited from class java.util.AbstractCollection

    isEmpty

    Methods inherited from class java.lang.Object

    getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface it.unimi.dsi.fastutil.bytes.ByteCollection

    intParallelStream, intStream, parallelStream, removeIf, stream

    Methods inherited from interface it.unimi.dsi.fastutil.bytes.ByteIterable

    forEach

    Methods inherited from interface java.util.Collection

    isEmpty, toArray

  • Method Details

    • contains

      public boolean contains​(byte k)
      Description copied from class: AbstractByteCollection
      Returns true if this collection contains the specified element.
      Specified by:
      contains in interface ByteCollection
      Overrides:
      contains in class AbstractByteCollection
      See Also:
      Collection.contains(Object)

    • toArray

      public java.lang.Object[] toArray()
      Specified by:
      toArray in interface java.util.Collection<java.lang.Byte>
      Overrides:
      toArray in class java.util.AbstractCollection<java.lang.Byte>

    • toArray

      public <T> T[] toArray​(T[] array)
      Specified by:
      toArray in interface java.util.Collection<java.lang.Byte>
      Overrides:
      toArray in class java.util.AbstractCollection<java.lang.Byte>

    • iterator

      public ByteBidirectionalIterator iterator()
      Description copied from interface: ByteCollection
      Returns a type-specific iterator on the elements of this collection.
      Specified by:
      iterator in interface ByteCollection
      Specified by:
      iterator in interface ByteIterable
      Specified by:
      iterator in interface java.util.Collection<java.lang.Byte>
      Specified by:
      iterator in interface java.lang.Iterable<java.lang.Byte>
      Specified by:
      iterator in class AbstractByteCollection
      Returns:
      a type-specific iterator on the elements of this collection.
      See Also:
      Iterable.iterator()

    • spliterator

      public ByteSpliterator spliterator()
      Description copied from interface: ByteCollection
      Returns a type-specific spliterator on the elements of this collection.

      See Collection.spliterator() for more documentation on the requirements of the returned spliterator.

      Returns:
      a type-specific spliterator on the elements of this collection.

    • size

      public int size()
      Specified by:
      size in interface java.util.Collection<java.lang.Byte>
      Specified by:
      size in class java.util.AbstractCollection<java.lang.Byte>

    • clear

      public void clear()
      Specified by:
      clear in interface java.util.Collection<java.lang.Byte>
      Overrides:
      clear in class java.util.AbstractCollection<java.lang.Byte>

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in interface java.util.Collection<java.lang.Byte>
      Overrides:
      hashCode in class java.lang.Object

    • equals

      public boolean equals​(java.lang.Object o)
      Specified by:
      equals in interface java.util.Collection<java.lang.Byte>
      Overrides:
      equals in class java.lang.Object

    • forEach

      @Deprecated public void forEach​(java.util.function.Consumer<? super java.lang.Byte> action)
      Deprecated.
      Description copied from interface: ByteIterable

    • containsAll

      public boolean containsAll​(java.util.Collection<?> c)
      Description copied from class: AbstractByteCollection
      Specified by:
      containsAll in interface java.util.Collection<java.lang.Byte>
      Overrides:
      containsAll in class AbstractByteCollection

    • addAll

      public boolean addAll​(java.util.Collection<? extends java.lang.Byte> c)
      Description copied from class: AbstractByteCollection
      Specified by:
      addAll in interface java.util.Collection<java.lang.Byte>
      Overrides:
      addAll in class AbstractByteCollection

    • removeAll

      public boolean removeAll​(java.util.Collection<?> c)
      Description copied from class: AbstractByteCollection
      Specified by:
      removeAll in interface java.util.Collection<java.lang.Byte>
      Overrides:
      removeAll in class AbstractByteCollection

    • retainAll

      public boolean retainAll​(java.util.Collection<?> c)
      Description copied from class: AbstractByteCollection
      Specified by:
      retainAll in interface java.util.Collection<java.lang.Byte>
      Overrides:
      retainAll in class AbstractByteCollection

    • removeIf

      @Deprecated public boolean removeIf​(java.util.function.Predicate<? super java.lang.Byte> filter)
      Deprecated.
      Description copied from interface: ByteCollection

    • toByteArray

      public byte[] toByteArray()
      Description copied from interface: ByteCollection
      Returns a primitive type array containing the items of this collection.
      Specified by:
      toByteArray in interface ByteCollection
      Overrides:
      toByteArray in class AbstractByteCollection
      Returns:
      a primitive type array containing the items of this collection.
      See Also:
      Collection.toArray()

    • toByteArray

      @Deprecated public byte[] toByteArray​(byte[] a)
      Deprecated.
      Description copied from class: AbstractByteCollection
      Returns a primitive type array containing the items of this collection.

      Note that, contrarily to Collection.toArray(Object[]), this methods just writes all elements of this collection: no special value will be added after the last one.

      Specified by:
      toByteArray in interface ByteCollection
      Overrides:
      toByteArray in class AbstractByteCollection
      Parameters:
      a - if this array is big enough, it will be used to store this collection.
      Returns:
      a primitive type array containing the items of this collection.
      See Also:
      Collection.toArray(Object[])

    • forEach

      public void forEach​(ByteConsumer action)
      Description copied from interface: ByteIterable
      Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.
      Parameters:
      action - the action to be performed for each element.
      See Also:
      Iterable.forEach(java.util.function.Consumer)

    • containsAll

      public boolean containsAll​(ByteCollection c)
      Description copied from interface: ByteCollection
      Checks whether this collection contains all elements from the given type-specific collection.
      Specified by:
      containsAll in interface ByteCollection
      Overrides:
      containsAll in class AbstractByteCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection contains all elements of the argument.
      See Also:
      Collection.containsAll(Collection)

    • addAll

      public boolean addAll​(ByteCollection c)
      Description copied from interface: ByteCollection
      Adds all elements of the given type-specific collection to this collection.
      Specified by:
      addAll in interface ByteCollection
      Overrides:
      addAll in class AbstractByteCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.addAll(Collection)

    • removeAll

      public boolean removeAll​(ByteCollection c)
      Description copied from interface: ByteCollection
      Remove from this collection all elements in the given type-specific collection.
      Specified by:
      removeAll in interface ByteCollection
      Overrides:
      removeAll in class AbstractByteCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.removeAll(Collection)

    • retainAll

      public boolean retainAll​(ByteCollection c)
      Description copied from interface: ByteCollection
      Retains in this collection only elements from the given type-specific collection.
      Specified by:
      retainAll in interface ByteCollection
      Overrides:
      retainAll in class AbstractByteCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.retainAll(Collection)

    • removeIf

      public boolean removeIf​(BytePredicate filter)
      Description copied from interface: ByteCollection
      Remove from this collection all elements which satisfy the given predicate.
      Parameters:
      filter - a predicate which returns true for elements to be removed.
      Returns:
      true if any elements were removed.
      See Also:
      Collection.removeIf(java.util.function.Predicate)

    • intIterator

      public IntIterator intIterator()
      Description copied from interface: ByteCollection
      Returns a widened primitive iterator on the elements of this collection.

      This method is provided for the purpose of APIs that expect only the JDK's primitive iterators, of which there are only int, long, and double.

      Returns:
      a widened primitive iterator on the elements of this collection.

    • intSpliterator

      public IntSpliterator intSpliterator()
      Description copied from interface: ByteCollection
      Returns widened primitive spliterator on the elements of this collection.

      This method is provided for the purpose of APIs that expect only the JDK's primitive spliterators, of which there are only int, long, and double.

      Returns:
      a widened primitive spliterator on the elements of this collection.