scala.collection.immutable

HashSet

object HashSet extends ImmutableSetFactory[HashSet] with Serializable

This object provides a set of operations needed to create immutable.HashSet values.

Source
HashSet.scala
Linear Supertypes
Serializable, Serializable, ImmutableSetFactory[HashSet], SetFactory[HashSet], GenericSeqCompanion[HashSet], GenSetFactory[HashSet], GenericCompanion[HashSet], AnyRef, Any
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. Hide All
  2. Show all
  1. HashSet
  2. Serializable
  3. Serializable
  4. ImmutableSetFactory
  5. SetFactory
  6. GenericSeqCompanion
  7. GenSetFactory
  8. GenericCompanion
  9. AnyRef
  10. Any
Visibility
  1. Public
  2. All

Type Members

  1. type Coll = scala.collection.immutable.HashSet[_]

    The underlying collection type with unknown element type

    The underlying collection type with unknown element type

    Definition Classes
    GenericCompanion

  2. class HashSet1 [A] extends HashSet[A]

  3. class HashTrieSet [A] extends HashSet[A]

Value Members

  1. def != (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef

  2. def != (arg0: Any): Boolean

    Test two objects for inequality.

    Test two objects for inequality.

    returns

    true if !(this == that), false otherwise.

    Attributes
    final
    Definition Classes
    Any

  3. def ## (): Int

    Equivalent to x.hashCode except for boxed numeric types.

    Equivalent to x.hashCode except for boxed numeric types. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them.

    returns

    a hash value consistent with ==

    Attributes
    final
    Definition Classes
    AnyRef → Any

  4. def == (arg0: AnyRef): Boolean

    Attributes
    final
    Definition Classes
    AnyRef

  5. def == (arg0: Any): Boolean

    Test two objects for equality.

    Test two objects for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Attributes
    final
    Definition Classes
    Any

  6. def apply [A] (elems: A*): HashSet[A]

    Creates a immutable hash set with the specified elements.

    Creates a immutable hash set with the specified elements.

    A

    the type of the immutable hash set's elements

    elems

    the elements of the created immutable hash set

    returns

    a new immutable hash set with elements elems

    Definition Classes
    SetFactory → GenericSeqCompanion → GenericCompanion
    Annotations
    @bridge()

  7. def asInstanceOf [T0] : T0

    Cast the receiver object to be of type T0.

    Cast the receiver object to be of type T0.

    Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

    returns

    the receiver object.

    Attributes
    final
    Definition Classes
    Any

  8. implicit def canBuildFrom [A] : CanBuildFrom[Coll, A, HashSet[A]]

    The standard CanBuildFrom instance for immutable.HashSet objects.

    The standard CanBuildFrom instance for immutable.HashSet objects.

    Attributes
    implicit

  9. def clone (): AnyRef

    Create a copy of the receiver object.

    Create a copy of the receiver object.

    The default implementation of the clone method is platform dependent.

    returns

    a copy of the receiver object.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  10. def empty [A] : HashSet[A]

    An empty collection of type immutable.HashSet[A]

    An empty collection of type immutable.HashSet[A]

    A

    the type of the immutable hash set's elements

    Definition Classes
    HashSet → SetFactory → GenericSeqCompanion → GenericCompanion

  11. def eq (arg0: AnyRef): Boolean

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:

    • It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
    • For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
    • null.eq(null) returns true.

    When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

    returns

    true if the argument is a reference to the receiver object; false otherwise.

    Attributes
    final
    Definition Classes
    AnyRef

  12. def equals (arg0: Any): Boolean

    The equality method for reference types.

    The equality method for reference types. See equals in Any.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    AnyRef → Any

  13. def finalize (): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  14. def getClass (): java.lang.Class[_ <: java.lang.Object]

    A representation that corresponds to the dynamic class of the receiver object.

    A representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

    a representation that corresponds to the dynamic class of the receiver object.

    Attributes
    final
    Definition Classes
    AnyRef

  15. def hashCode (): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in Any.

    returns

    the hash code value for this object.

    Definition Classes
    AnyRef → Any

  16. def isInstanceOf [T0] : Boolean

    Test whether the dynamic type of the receiver object is T0.

    Test whether the dynamic type of the receiver object is T0.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    Attributes
    final
    Definition Classes
    Any

  17. def ne (arg0: AnyRef): Boolean

    Equivalent to !(this eq that).

    Equivalent to !(this eq that).

    returns

    true if the argument is not a reference to the receiver object; false otherwise.

    Attributes
    final
    Definition Classes
    AnyRef

  18. def newBuilder [A] : Builder[A, HashSet[A]]

    The default builder for immutable.HashSet objects.

    The default builder for immutable.HashSet objects.

    A

    the type of the immutable hash set's elements

    Definition Classes
    ImmutableSetFactory → GenSetFactory → GenericCompanion

  19. def notify (): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Attributes
    final
    Definition Classes
    AnyRef

  20. def notifyAll (): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Attributes
    final
    Definition Classes
    AnyRef

  21. def readResolve (): AnyRef

    Attributes
    protected

  22. def setCanBuildFrom [A] : CanBuildFrom[scala.collection.immutable.HashSet[_], A, HashSet[A]]

    The standard CanBuildFrom instance for immutable.HashSet objects.

    The standard CanBuildFrom instance for immutable.HashSet objects.

    Definition Classes
    GenSetFactory

  23. def synchronized [T0] (arg0: ⇒ T0): T0

    Attributes
    final
    Definition Classes
    AnyRef

  24. def toString (): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

    a String representation of the object.

    Definition Classes
    AnyRef → Any

  25. def wait (): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()

  26. def wait (arg0: Long, arg1: Int): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()

  27. def wait (arg0: Long): Unit

    Attributes
    final
    Definition Classes
    AnyRef
    Annotations
    @throws()