scala.collection.interfaces

TraversableMethods

trait TraversableMethods[+A, +This <: TraversableLike[A, This]] extends TraversableOnceMethods[A]

Self Type
TraversableMethods[A, This] with Traversable[A]
Source
TraversableMethods.scala
Since

2.8

Linear Supertypes
Known Subclasses
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Inherited
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  1. TraversableMethods
  2. TraversableOnceMethods
  3. AnyRef
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Visibility
  1. Public
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Abstract Value Members

  1. abstract def ++[B >: A, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That

  2. abstract def ++:[B >: A, That](that: TraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That

  3. abstract def /:[B](z: B)(op: (B, A) ⇒ B): B

    Definition Classes
    TraversableOnceMethods
  4. abstract def :\[B](z: B)(op: (A, B) ⇒ B): B

    Definition Classes
    TraversableOnceMethods
  5. abstract def addString(buf: StringBuilder): StringBuilder

    Definition Classes
    TraversableOnceMethods
  6. abstract def addString(buf: StringBuilder, sep: String): StringBuilder

    Definition Classes
    TraversableOnceMethods
  7. abstract def addString(buf: StringBuilder, start: String, sep: String, end: String): StringBuilder

    Definition Classes
    TraversableOnceMethods
  8. abstract def collect[B, That](pf: PartialFunction[A, B])(implicit bf: CanBuildFrom[This, B, That]): That

  9. abstract def collectFirst[B](pf: PartialFunction[A, B]): Option[B]

    Definition Classes
    TraversableOnceMethods
  10. abstract def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Unit

    Definition Classes
    TraversableOnceMethods
  11. abstract def copyToArray[B >: A](xs: Array[B], start: Int): Unit

    Definition Classes
    TraversableOnceMethods
  12. abstract def copyToArray[B >: A](xs: Array[B]): Unit

    Definition Classes
    TraversableOnceMethods
  13. abstract def copyToBuffer[B >: A](dest: Buffer[B]): Unit

    Definition Classes
    TraversableOnceMethods
  14. abstract def count(p: (A) ⇒ Boolean): Int

    Definition Classes
    TraversableOnceMethods
  15. abstract def drop(n: Int): Traversable[A]

  16. abstract def dropWhile(p: (A) ⇒ Boolean): Traversable[A]

  17. abstract def exists(p: (A) ⇒ Boolean): Boolean

    Definition Classes
    TraversableOnceMethods
  18. abstract def filter(p: (A) ⇒ Boolean): Traversable[A]

  19. abstract def filterNot(p: (A) ⇒ Boolean): Traversable[A]

  20. abstract def find(p: (A) ⇒ Boolean): Option[A]

    Definition Classes
    TraversableOnceMethods
  21. abstract def flatMap[B, That](f: (A) ⇒ GenTraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That

  22. abstract def foldLeft[B](z: B)(op: (B, A) ⇒ B): B

    Definition Classes
    TraversableOnceMethods
  23. abstract def foldRight[B](z: B)(op: (A, B) ⇒ B): B

    Definition Classes
    TraversableOnceMethods
  24. abstract def forall(p: (A) ⇒ Boolean): Boolean

    Definition Classes
    TraversableOnceMethods
  25. abstract def foreach[U](f: (A) ⇒ U): Unit

    Definition Classes
    TraversableOnceMethods
  26. abstract def groupBy[K](f: (A) ⇒ K): Map[K, Traversable[A]]

  27. abstract def hasDefiniteSize: Boolean

    Definition Classes
    TraversableOnceMethods
  28. abstract def head: A

  29. abstract def headOption: Option[A]

  30. abstract def init: Traversable[A]

  31. abstract def inits: Iterator[This]

  32. abstract def isEmpty: Boolean

    Definition Classes
    TraversableOnceMethods
  33. abstract def isTraversableAgain: Boolean

    Definition Classes
    TraversableOnceMethods
  34. abstract def last: A

  35. abstract def lastOption: Option[A]

  36. abstract def map[B, That](f: (A) ⇒ B)(implicit bf: CanBuildFrom[This, B, That]): That

  37. abstract def max[B >: A](implicit cmp: Ordering[B]): A

    Definition Classes
    TraversableOnceMethods
  38. abstract def maxBy[B](f: (A) ⇒ B)(implicit cmp: Ordering[B]): A

    Definition Classes
    TraversableOnceMethods
  39. abstract def min[B >: A](implicit cmp: Ordering[B]): A

    Definition Classes
    TraversableOnceMethods
  40. abstract def minBy[B](f: (A) ⇒ B)(implicit cmp: Ordering[B]): A

    Definition Classes
    TraversableOnceMethods
  41. abstract def mkString: String

    Definition Classes
    TraversableOnceMethods
  42. abstract def mkString(sep: String): String

    Definition Classes
    TraversableOnceMethods
  43. abstract def mkString(start: String, sep: String, end: String): String

    Definition Classes
    TraversableOnceMethods
  44. abstract def nonEmpty: Boolean

    Definition Classes
    TraversableOnceMethods
  45. abstract def partition(p: (A) ⇒ Boolean): (Traversable[A], Traversable[A])

  46. abstract def product[B >: A](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnceMethods
  47. abstract def reduceLeft[B >: A](op: (B, A) ⇒ B): B

    Definition Classes
    TraversableOnceMethods
  48. abstract def reduceLeftOption[B >: A](op: (B, A) ⇒ B): Option[B]

    Definition Classes
    TraversableOnceMethods
  49. abstract def reduceRight[B >: A](op: (A, B) ⇒ B): B

    Definition Classes
    TraversableOnceMethods
  50. abstract def reduceRightOption[B >: A](op: (A, B) ⇒ B): Option[B]

    Definition Classes
    TraversableOnceMethods
  51. abstract def reversed: TraversableOnce[A]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnceMethods
  52. abstract def scanLeft[B, That](z: B)(op: (B, A) ⇒ B)(implicit bf: CanBuildFrom[This, B, That]): That

  53. abstract def scanRight[B, That](z: B)(op: (A, B) ⇒ B)(implicit bf: CanBuildFrom[This, B, That]): That

  54. abstract def size: Int

    Definition Classes
    TraversableOnceMethods
  55. abstract def slice(from: Int, until: Int): Traversable[A]

  56. abstract def span(p: (A) ⇒ Boolean): (Traversable[A], Traversable[A])

  57. abstract def splitAt(n: Int): (Traversable[A], Traversable[A])

  58. abstract def stringPrefix: String

  59. abstract def sum[B >: A](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnceMethods
  60. abstract def tail: Traversable[A]

  61. abstract def tails: Iterator[This]

  62. abstract def take(n: Int): Traversable[A]

  63. abstract def takeWhile(p: (A) ⇒ Boolean): Traversable[A]

  64. abstract def toArray[B >: A](implicit arg0: ClassManifest[B]): Array[B]

    Definition Classes
    TraversableOnceMethods
  65. abstract def toBuffer[B >: A]: Buffer[B]

    Definition Classes
    TraversableOnceMethods
  66. abstract def toIndexedSeq[B >: A]: IndexedSeq[B]

    Definition Classes
    TraversableOnceMethods
  67. abstract def toIterable: Iterable[A]

    Definition Classes
    TraversableOnceMethods
  68. abstract def toIterator: Iterator[A]

    Definition Classes
    TraversableOnceMethods
  69. abstract def toList: List[A]

    Definition Classes
    TraversableOnceMethods
  70. abstract def toMap[T, U](implicit ev: <:<[A, (T, U)]): Map[T, U]

    Definition Classes
    TraversableOnceMethods
  71. abstract def toSeq: Seq[A]

    Definition Classes
    TraversableOnceMethods
  72. abstract def toSet[B >: A]: Set[B]

    Definition Classes
    TraversableOnceMethods
  73. abstract def toStream: Stream[A]

    Definition Classes
    TraversableOnceMethods
  74. abstract def toTraversable: Traversable[A]

    Definition Classes
    TraversableOnceMethods
  75. abstract def view(from: Int, until: Int): TraversableView[A, This]

  76. abstract def view: TraversableView[A, This]

  77. abstract def withFilter(p: (A) ⇒ Boolean): FilterMonadic[A, Traversable[A]]

Concrete Value Members

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

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Test two objects for inequality.

    Test two objects for inequality.

    returns

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

    Definition Classes
    Any
  3. final 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 ==

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final 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.

    Definition Classes
    Any
  6. final 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.

    Definition Classes
    Any
    Exceptions thrown
    ClassCastException

    if the receiver object is not an instance of the erasure of type T0.

  7. 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()
    Note

    not specified by SLS as a member of AnyRef

  8. final 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.

    Definition Classes
    AnyRef
  9. 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
  10. 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()
    Note

    not specified by SLS as a member of AnyRef

  11. final def getClass(): java.lang.Class[_]

    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.

    Definition Classes
    AnyRef → Any
    Note

    not specified by SLS as a member of AnyRef

  12. 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
  13. final 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.

    Definition Classes
    Any
  14. final 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.

    Definition Classes
    AnyRef
  15. final 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.

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  16. final 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.

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  17. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  18. 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
  19. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  20. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()
  21. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

Inherited from TraversableOnceMethods[A]

Inherited from AnyRef

Inherited from Any