scala.collection.mutable

HashTable

trait HashTable[A, Entry >: Null <: HashEntry[A, Entry]] extends HashUtils[A]

This class can be used to construct data structures that are based on hashtables. Class HashTable[A] implements a hashtable that maps keys of type A to values of the fully abstract member type Entry. Classes that make use of HashTable have to provide an implementation for Entry.

There are mainly two parameters that affect the performance of a hashtable: the initial size and the load factor. The size refers to the number of buckets in the hashtable, and the load factor is a measure of how full the hashtable is allowed to get before its size is automatically doubled. Both parameters may be changed by overriding the corresponding values in class HashTable.

A

type of the elements contained in this hash table.

Version

2.0, 31/12/2006

Since

1

Linear Supertypes
HashUtils[A], AnyRef, Any
Known Subclasses
HashMap, LinkedHashMap, LinkedHashSet, ParHashMap, ParHashTable
Type Hierarchy Learn more about scaladoc diagrams
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. HashTable
  2. HashUtils
  3. AnyRef
  4. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def createNewEntry[B](key: A, value: B): Entry

    Creates new entry to be immediately inserted into the hashtable.

    Creates new entry to be immediately inserted into the hashtable. This method is guaranteed to be called only once and in case that the entry will be added. In other words, an implementation may be side-effecting.

    Attributes
    protected

Concrete Value Members

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

    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Definition Classes
    AnyRef → Any

  3. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to any2stringadd[HashTable[A, Entry]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (HashTable[A, Entry], B)

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to ArrowAssoc[HashTable[A, Entry]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

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

    Definition Classes
    AnyRef → Any

  6. var _loadFactor: Int

    Attributes
    protected

  7. def addEntry(e: Entry): Unit

    Add entry to table pre: no entry with same key exists

    Add entry to table pre: no entry with same key exists

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  8. def alwaysInitSizeMap: Boolean

    Attributes
    protected

  9. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  10. def calcSizeMapSize(tableLength: Int): Int

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  11. def clearTable(): Unit

    Remove all entries from table

    Remove all entries from table

    Attributes
    protected

  12. def clone(): AnyRef

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

  13. def elemEquals(key1: A, key2: A): Boolean

    Attributes
    protected

  14. def elemHashCode(key: A): Int

    Attributes
    protected
    Definition Classes
    HashUtils

  15. def ensuring(cond: (HashTable[A, Entry]) ⇒ Boolean, msg: ⇒ Any): HashTable[A, Entry]

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to Ensuring[HashTable[A, Entry]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  16. def ensuring(cond: (HashTable[A, Entry]) ⇒ Boolean): HashTable[A, Entry]

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to Ensuring[HashTable[A, Entry]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  17. def ensuring(cond: Boolean, msg: ⇒ Any): HashTable[A, Entry]

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to Ensuring[HashTable[A, Entry]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  18. def ensuring(cond: Boolean): HashTable[A, Entry]

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to Ensuring[HashTable[A, Entry]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  19. def entriesIterator: Iterator[Entry]

    An iterator returning all entries.

    An iterator returning all entries.

    Attributes
    protected

  20. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  21. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  22. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  23. def findEntry(key: A): Entry

    Find entry with given key in table, null if not found.

    Find entry with given key in table, null if not found.

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  24. def findOrAddEntry[B](key: A, value: B): Entry

    Find entry with given key in table, or add new one if not found.

    Find entry with given key in table, or add new one if not found. May be somewhat faster then findEntry/addEntry pair as it computes entry's hash index only once. Returns entry found in table or null. New entries are created by calling createNewEntry method.

    Attributes
    protected

  25. def foreachEntry[U](f: (Entry) ⇒ U): Unit

    Avoid iterator for a 2x faster traversal.

    Avoid iterator for a 2x faster traversal.

    Attributes
    protected

  26. def formatted(fmtstr: String): String

    Returns string formatted according to given format string.

    Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to StringFormat[HashTable[A, Entry]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

  27. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  28. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  29. final def improve(hcode: Int, seed: Int): Int

    Attributes
    protected
    Definition Classes
    HashUtils

  30. final def index(hcode: Int): Int

    Attributes
    protected

  31. def initWithContents(c: Contents[A, Entry]): Unit

    Attributes
    protected

  32. def initialSize: Int

    The initial size of the hash table.

    The initial size of the hash table.

    Attributes
    protected

  33. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  34. def isSizeMapDefined: Boolean

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  35. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  36. def nnSizeMapAdd(h: Int): Unit

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  37. def nnSizeMapRemove(h: Int): Unit

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  38. def nnSizeMapReset(tableLength: Int): Unit

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  39. final def notify(): Unit

    Definition Classes
    AnyRef

  40. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  41. def removeEntry(key: A): Entry

    Remove entry from table if present.

    Remove entry from table if present.

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  42. var seedvalue: Int

    Attributes
    protected

  43. final def sizeMapBucketBitSize: Int

    Attributes
    protected
    Definition Classes
    HashUtils

  44. final def sizeMapBucketSize: Int

    Attributes
    protected
    Definition Classes
    HashUtils

  45. def sizeMapDisable(): Unit

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  46. def sizeMapInit(tableLength: Int): Unit

    Attributes
    protected

  47. def sizeMapInitAndRebuild(): Unit

    Attributes
    protected
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )

  48. var sizemap: Array[Int]

    The array keeping track of the number of elements in 32 element blocks.

    The array keeping track of the number of elements in 32 element blocks.

    Attributes
    protected

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

    Definition Classes
    AnyRef

  50. var table: Array[HashEntry[A, Entry]]

    The actual hash table.

    The actual hash table.

    Attributes
    protected

  51. var tableSize: Int

    The number of mappings contained in this hash table.

    The number of mappings contained in this hash table.

    Attributes
    protected

  52. def tableSizeSeed: Int

    Attributes
    protected

  53. var threshold: Int

    The next size value at which to resize (capacity * load factor).

    The next size value at which to resize (capacity * load factor).

    Attributes
    protected

  54. def toString(): String

    Definition Classes
    AnyRef → Any

  55. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  57. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  58. def →[B](y: B): (HashTable[A, Entry], B)

    Implicit information
    This member is added by an implicit conversion from HashTable[A, Entry] to ArrowAssoc[HashTable[A, Entry]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from HashUtils[A]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from HashTable[A, Entry] to any2stringadd[HashTable[A, Entry]]

Inherited by implicit conversion StringFormat from HashTable[A, Entry] to StringFormat[HashTable[A, Entry]]

Inherited by implicit conversion Ensuring from HashTable[A, Entry] to Ensuring[HashTable[A, Entry]]

Inherited by implicit conversion ArrowAssoc from HashTable[A, Entry] to ArrowAssoc[HashTable[A, Entry]]

Ungrouped