Class TByteByteHashMap

java.lang.Object
gnu.trove.impl.hash.THash
gnu.trove.impl.hash.TPrimitiveHash
gnu.trove.impl.hash.TByteByteHash
gnu.trove.map.hash.TByteByteHashMap
All Implemented Interfaces:
TByteByteMap, Externalizable, Serializable

public class TByteByteHashMap extends gnu.trove.impl.hash.TByteByteHash implements TByteByteMap, Externalizable
An open addressed Map implementation for byte keys and byte values.
See Also:
  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    protected class 
    a view onto the keys of the map.
    protected class 
    a view onto the values of the map.
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected byte[]
    the values of the map

    Fields inherited from class gnu.trove.impl.hash.TByteByteHash

    _set, consumeFreeSlot, no_entry_key, no_entry_value

    Fields inherited from class gnu.trove.impl.hash.TPrimitiveHash

    _states, FREE, FULL, REMOVED

    Fields inherited from class gnu.trove.impl.hash.THash

    _autoCompactionFactor, _autoCompactRemovesRemaining, _autoCompactTemporaryDisable, _free, _loadFactor, _maxSize, _size, DEFAULT_CAPACITY, DEFAULT_LOAD_FACTOR
  • Constructor Summary

    Constructors
    Constructor
    Description
    Creates a new TByteByteHashMap instance with the default capacity and load factor.
    TByteByteHashMap(byte[] keys, byte[] values)
    Creates a new TByteByteHashMap instance containing all of the entries in the map passed in.
    TByteByteHashMap(int initialCapacity)
    Creates a new TByteByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.
    TByteByteHashMap(int initialCapacity, float loadFactor)
    Creates a new TByteByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.
    TByteByteHashMap(int initialCapacity, float loadFactor, byte noEntryKey, byte noEntryValue)
    Creates a new TByteByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.
    Creates a new TByteByteHashMap instance containing all of the entries in the map passed in.
  • Method Summary

    Modifier and Type
    Method
    Description
    byte
    adjustOrPutValue(byte key, byte adjust_amount, byte put_amount)
    Adjusts the primitive value mapped to the key if the key is present in the map.
    boolean
    adjustValue(byte key, byte amount)
    Adjusts the primitive value mapped to key.
    void
    Empties the collection.
    boolean
    containsKey(byte key)
    Checks for the present of key in the keys of the map.
    boolean
    containsValue(byte val)
    Checks for the presence of val in the values of the map.
    boolean
    equals(Object other)
    boolean
    Executes procedure for each key/value entry in the map.
    boolean
    Executes procedure for each key in the map.
    boolean
    Executes procedure for each value in the map.
    byte
    get(byte key)
    Retrieves the value for key
    int
    boolean
    increment(byte key)
    Increments the primitive value mapped to key by 1
    boolean
    Tells whether this set is currently holding any elements.
    byte[]
    Returns the keys of the map as an array of byte values.
    byte[]
    keys(byte[] array)
    Returns the keys of the map.
    Returns the keys of the map as a TByteSet
    byte
    put(byte key, byte value)
    Inserts a key/value pair into the map.
    void
    Put all the entries from the given map into this map.
    void
    putAll(Map<? extends Byte,? extends Byte> map)
    Put all the entries from the given Map into this map.
    byte
    putIfAbsent(byte key, byte value)
    Inserts a key/value pair into the map if the specified key is not already associated with a value.
    void
    protected void
    rehash(int newCapacity)
    Rehashes the set.
    byte
    remove(byte key)
    Deletes a key/value pair from the map.
    protected void
    removeAt(int index)
    Releases the element currently stored at index.
    boolean
    Retains only those entries in the map for which the procedure returns a true value.
    protected int
    setUp(int initialCapacity)
    initializes the hashtable to a prime capacity which is at least initialCapacity + 1.
    void
    Transform the values in this map using function.
    Returns the values of the map as a TByteCollection
    byte[]
    Returns the values of the map as an array of #e# values.
    byte[]
    values(byte[] array)
    Returns the values of the map using an existing array.
    void

    Methods inherited from class gnu.trove.impl.hash.TByteByteHash

    contains, forEach, getNoEntryKey, getNoEntryValue, index, insertKey, XinsertKey

    Methods inherited from class gnu.trove.impl.hash.TPrimitiveHash

    capacity

    Methods inherited from class gnu.trove.impl.hash.THash

    calculateGrownCapacity, compact, computeMaxSize, computeNextAutoCompactionAmount, ensureCapacity, getAutoCompactionFactor, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface gnu.trove.map.TByteByteMap

    getNoEntryKey, getNoEntryValue, size
  • Field Details

    • _values

      protected transient byte[] _values
      the values of the map
  • Constructor Details

    • TByteByteHashMap

      public TByteByteHashMap()
      Creates a new TByteByteHashMap instance with the default capacity and load factor.
    • TByteByteHashMap

      public TByteByteHashMap(int initialCapacity)
      Creates a new TByteByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.
      Parameters:
      initialCapacity - an int value
    • TByteByteHashMap

      public TByteByteHashMap(int initialCapacity, float loadFactor)
      Creates a new TByteByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.
      Parameters:
      initialCapacity - an int value
      loadFactor - a float value
    • TByteByteHashMap

      public TByteByteHashMap(int initialCapacity, float loadFactor, byte noEntryKey, byte noEntryValue)
      Creates a new TByteByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.
      Parameters:
      initialCapacity - an int value
      loadFactor - a float value
      noEntryKey - a byte value that represents null for the Key set.
      noEntryValue - a byte value that represents null for the Value set.
    • TByteByteHashMap

      public TByteByteHashMap(byte[] keys, byte[] values)
      Creates a new TByteByteHashMap instance containing all of the entries in the map passed in.
      Parameters:
      keys - a byte array containing the keys for the matching values.
      values - a byte array containing the values.
    • TByteByteHashMap

      public TByteByteHashMap(TByteByteMap map)
      Creates a new TByteByteHashMap instance containing all of the entries in the map passed in.
      Parameters:
      map - a TByteByteMap that will be duplicated.
  • Method Details

    • setUp

      protected int setUp(int initialCapacity)
      initializes the hashtable to a prime capacity which is at least initialCapacity + 1.
      Overrides:
      setUp in class gnu.trove.impl.hash.TByteByteHash
      Parameters:
      initialCapacity - an int value
      Returns:
      the actual capacity chosen
    • rehash

      protected void rehash(int newCapacity)
      Rehashes the set.
      Specified by:
      rehash in class gnu.trove.impl.hash.THash
      Parameters:
      newCapacity - an int value
    • put

      public byte put(byte key, byte value)
      Inserts a key/value pair into the map.
      Specified by:
      put in interface TByteByteMap
      Parameters:
      key - an byte value
      value - an byte value
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see TByteByteMap.getNoEntryValue()).
    • putIfAbsent

      public byte putIfAbsent(byte key, byte value)
      Inserts a key/value pair into the map if the specified key is not already associated with a value.
      Specified by:
      putIfAbsent in interface TByteByteMap
      Parameters:
      key - an byte value
      value - an byte value
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see TByteByteMap.getNoEntryValue()).
    • putAll

      public void putAll(Map<? extends Byte,? extends Byte> map)
      Put all the entries from the given Map into this map.
      Specified by:
      putAll in interface TByteByteMap
      Parameters:
      map - The Map from which entries will be obtained to put into this map.
    • putAll

      public void putAll(TByteByteMap map)
      Put all the entries from the given map into this map.
      Specified by:
      putAll in interface TByteByteMap
      Parameters:
      map - The map from which entries will be obtained to put into this map.
    • get

      public byte get(byte key)
      Retrieves the value for key
      Specified by:
      get in interface TByteByteMap
      Parameters:
      key - an byte value
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see TByteByteMap.getNoEntryValue()).
    • clear

      public void clear()
      Empties the collection.
      Specified by:
      clear in interface TByteByteMap
      Overrides:
      clear in class gnu.trove.impl.hash.THash
    • isEmpty

      public boolean isEmpty()
      Tells whether this set is currently holding any elements.
      Specified by:
      isEmpty in interface TByteByteMap
      Overrides:
      isEmpty in class gnu.trove.impl.hash.THash
      Returns:
      a boolean value
    • remove

      public byte remove(byte key)
      Deletes a key/value pair from the map.
      Specified by:
      remove in interface TByteByteMap
      Parameters:
      key - an byte value
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see TByteByteMap.getNoEntryValue()).
    • removeAt

      protected void removeAt(int index)
      Releases the element currently stored at index.
      Overrides:
      removeAt in class gnu.trove.impl.hash.TByteByteHash
      Parameters:
      index - an int value
    • keySet

      public TByteSet keySet()
      Returns the keys of the map as a TByteSet
      Specified by:
      keySet in interface TByteByteMap
      Returns:
      the keys of the map as a TByteSet
    • keys

      public byte[] keys()
      Returns the keys of the map as an array of byte values.
      Specified by:
      keys in interface TByteByteMap
      Returns:
      the keys of the map as an array of byte values.
    • keys

      public byte[] keys(byte[] array)
      Returns the keys of the map.
      Specified by:
      keys in interface TByteByteMap
      Parameters:
      array - the array into which the elements of the list are to be stored, if it is big enough; otherwise, a new array of the same type is allocated for this purpose.
      Returns:
      the keys of the map as an array.
    • valueCollection

      public TByteCollection valueCollection()
      Returns the values of the map as a TByteCollection
      Specified by:
      valueCollection in interface TByteByteMap
      Returns:
      the values of the map as a TByteCollection
    • values

      public byte[] values()
      Returns the values of the map as an array of #e# values.
      Specified by:
      values in interface TByteByteMap
      Returns:
      the values of the map as an array of #e# values.
    • values

      public byte[] values(byte[] array)
      Returns the values of the map using an existing array.
      Specified by:
      values in interface TByteByteMap
      Parameters:
      array - the array into which the elements of the list are to be stored, if it is big enough; otherwise, a new array of the same type is allocated for this purpose.
      Returns:
      the values of the map as an array of #e# values.
    • containsValue

      public boolean containsValue(byte val)
      Checks for the presence of val in the values of the map.
      Specified by:
      containsValue in interface TByteByteMap
      Parameters:
      val - an byte value
      Returns:
      a boolean value
    • containsKey

      public boolean containsKey(byte key)
      Checks for the present of key in the keys of the map.
      Specified by:
      containsKey in interface TByteByteMap
      Parameters:
      key - an byte value
      Returns:
      a boolean value
    • iterator

      public TByteByteIterator iterator()
      Specified by:
      iterator in interface TByteByteMap
      Returns:
      a TByteByteIterator with access to this map's keys and values
    • forEachKey

      public boolean forEachKey(TByteProcedure procedure)
      Executes procedure for each key in the map.
      Specified by:
      forEachKey in interface TByteByteMap
      Parameters:
      procedure - a TByteProcedure value
      Returns:
      false if the loop over the keys terminated because the procedure returned false for some key.
    • forEachValue

      public boolean forEachValue(TByteProcedure procedure)
      Executes procedure for each value in the map.
      Specified by:
      forEachValue in interface TByteByteMap
      Parameters:
      procedure - a T#F#Procedure value
      Returns:
      false if the loop over the values terminated because the procedure returned false for some value.
    • forEachEntry

      public boolean forEachEntry(TByteByteProcedure procedure)
      Executes procedure for each key/value entry in the map.
      Specified by:
      forEachEntry in interface TByteByteMap
      Parameters:
      procedure - a TOByteByteProcedure value
      Returns:
      false if the loop over the entries terminated because the procedure returned false for some entry.
    • transformValues

      public void transformValues(TByteFunction function)
      Transform the values in this map using function.
      Specified by:
      transformValues in interface TByteByteMap
      Parameters:
      function - a TByteFunction value
    • retainEntries

      public boolean retainEntries(TByteByteProcedure procedure)
      Retains only those entries in the map for which the procedure returns a true value.
      Specified by:
      retainEntries in interface TByteByteMap
      Parameters:
      procedure - determines which entries to keep
      Returns:
      true if the map was modified.
    • increment

      public boolean increment(byte key)
      Increments the primitive value mapped to key by 1
      Specified by:
      increment in interface TByteByteMap
      Parameters:
      key - the key of the value to increment
      Returns:
      true if a mapping was found and modified.
    • adjustValue

      public boolean adjustValue(byte key, byte amount)
      Adjusts the primitive value mapped to key.
      Specified by:
      adjustValue in interface TByteByteMap
      Parameters:
      key - the key of the value to increment
      amount - the amount to adjust the value by.
      Returns:
      true if a mapping was found and modified.
    • adjustOrPutValue

      public byte adjustOrPutValue(byte key, byte adjust_amount, byte put_amount)
      Adjusts the primitive value mapped to the key if the key is present in the map. Otherwise, the initial_value is put in the map.
      Specified by:
      adjustOrPutValue in interface TByteByteMap
      Parameters:
      key - the key of the value to increment
      adjust_amount - the amount to adjust the value by
      put_amount - the value put into the map if the key is not initial present
      Returns:
      the value present in the map after the adjustment or put operation
    • equals

      public boolean equals(Object other)
      Overrides:
      equals in class Object
    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object
    • toString

      public String toString()
      Overrides:
      toString in class Object
    • writeExternal

      public void writeExternal(ObjectOutput out) throws IOException
      Specified by:
      writeExternal in interface Externalizable
      Overrides:
      writeExternal in class gnu.trove.impl.hash.TByteByteHash
      Throws:
      IOException
    • readExternal

      public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
      Specified by:
      readExternal in interface Externalizable
      Overrides:
      readExternal in class gnu.trove.impl.hash.TByteByteHash
      Throws:
      IOException
      ClassNotFoundException