TByteByteHashMap

java.lang.Object
- gnu.trove.THash
- - gnu.trove.TPrimitiveHash
  - - gnu.trove.TByteHash
    - - gnu.trove.TByteByteHashMap

All Implemented Interfaces:

TByteHashingStrategy, Externalizable, Serializable, Cloneable
```
public class TByteByteHashMap
extends TByteHash
implements Externalizable
```
An open addressed Map implementation for byte keys and byte values. Created: Sun Nov 4 08:52:45 2001

See Also:

Serialized Form

Field Summary

Fields

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

Fields inherited from class gnu.trove.TByteHash
_hashingStrategy, _set

Fields inherited from class gnu.trove.TPrimitiveHash
_states, FREE, FULL, REMOVED

Fields inherited from class gnu.trove.THash
_autoCompactionFactor, _autoCompactRemovesRemaining, _free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
`TByteByteHashMap()` Creates a new `TByteByteHashMap` instance with the default capacity and load factor.
`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, TByteHashingStrategy strategy)` Creates a new `TByteByteHashMap` instance with a prime value at or near the specified capacity and load factor.
`TByteByteHashMap(int initialCapacity, TByteHashingStrategy strategy)` Creates a new `TByteByteHashMap` instance whose capacity is the next highest prime above `initialCapacity + 1` unless that value is already prime.
`TByteByteHashMap(TByteHashingStrategy strategy)` Creates a new `TByteByteHashMap` instance with the default capacity and load factor.

Method Summary

All Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and 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`	`clear()` Empties the map.
`Object`	`clone()`
`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)` Compares this map with another map for equality of their stored entries.
`boolean`	`forEachEntry(TByteByteProcedure procedure)` Executes `procedure` for each key/value entry in the map.
`boolean`	`forEachKey(TByteProcedure procedure)` Executes `procedure` for each key in the map.
`boolean`	`forEachValue(TByteProcedure procedure)` Executes `procedure` for each value in the map.
`byte`	`get(byte key)` retrieves the value for `key`
`byte[]`	`getValues()` Returns the values of the map.
`int`	`hashCode()`
`boolean`	`increment(byte key)` Increments the primitive value mapped to key by 1
`TByteByteIterator`	`iterator()`
`byte[]`	`keys()` returns the keys of the map.
`byte[]`	`keys(byte[] a)` returns the keys of the map.
`byte`	`put(byte key, byte value)` Inserts a key/value pair into the 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`	`readExternal(ObjectInput in)`
`protected void`	`rehash(int newCapacity)` rehashes the map to the new capacity.
`byte`	`remove(byte key)` Deletes a key/value pair from the map.
`protected void`	`removeAt(int index)` removes the mapping at `index` from the map.
`boolean`	`retainEntries(TByteByteProcedure procedure)` 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`	`transformValues(TByteFunction function)` Transform the values in this map using `function`.
`void`	`writeExternal(ObjectOutput out)`

Methods inherited from class gnu.trove.TByteHash
computeHashCode, contains, forEach, index, insertionIndex

Methods inherited from class gnu.trove.TPrimitiveHash
capacity

Methods inherited from class gnu.trove.THash
calculateGrownCapacity, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - _values
```
protected transient byte[] _values
```
    the values of the map
- Constructor Detail
  - 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(TByteHashingStrategy strategy)
```
    Creates a new TByteByteHashMap instance with the default capacity and load factor.
    
    Parameters:
    
    strategy - used to compute hash codes and to compare keys.
  - TByteByteHashMap
```
public TByteByteHashMap(int initialCapacity,
                        TByteHashingStrategy strategy)
```
    Creates a new TByteByteHashMap instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.
    
    Parameters:
    
    initialCapacity - an int value
    
    strategy - used to compute hash codes and to compare keys.
  - TByteByteHashMap
```
public TByteByteHashMap(int initialCapacity,
                        float loadFactor,
                        TByteHashingStrategy strategy)
```
    Creates a new TByteByteHashMap instance with a prime value at or near the specified capacity and load factor.
    
    Parameters:
    
    initialCapacity - used to find a prime capacity for the table.
    
    loadFactor - used to calculate the threshold over which rehashing takes place.
    
    strategy - used to compute hash codes and to compare keys.
- Method Detail
  - clone
```
public Object clone()
```
    Overrides:
    
    clone in class TByteHash
    
    Returns:
    
    a deep clone of this collection
  - iterator
```
public TByteByteIterator iterator()
```
    Returns:
    
    a TByteByteIterator with access to this map's keys and values
  - setUp
```
protected int setUp(int initialCapacity)
```
    initializes the hashtable to a prime capacity which is at least initialCapacity + 1.
    
    Overrides:
    
    setUp in class TByteHash
    
    Parameters:
    
    initialCapacity - an int value
    
    Returns:
    
    the actual capacity chosen
  - put
```
public byte put(byte key,
                byte value)
```
    Inserts a key/value pair into the map.
    
    Parameters:
    
    key - an byte value
    
    value - an byte value
    
    Returns:
    
    the previous value associated with key, or (byte)0 if none was found.
  - 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.
    
    Parameters:
    
    key - an byte value
    
    value - an byte value
    
    Returns:
    
    the previous value associated with key, or (byte)0 if none was found.
  - rehash
```
protected void rehash(int newCapacity)
```
    rehashes the map to the new capacity.
    
    Specified by:
    
    rehash in class THash
    
    Parameters:
    
    newCapacity - an int value
  - get
```
public byte get(byte key)
```
    retrieves the value for key
    
    Parameters:
    
    key - an byte value
    
    Returns:
    
    the value of key or (byte)0 if no such mapping exists.
  - clear
```
public void clear()
```
    Empties the map.
  - remove
```
public byte remove(byte key)
```
    Deletes a key/value pair from the map.
    
    Parameters:
    
    key - an byte value
    
    Returns:
    
    an byte value, or (byte)0 if no mapping for key exists
  - equals
```
public boolean equals(Object other)
```
    Compares this map with another map for equality of their stored entries.
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    other - an Object value
    
    Returns:
    
    a boolean value
  - hashCode
```
public int hashCode()
```
  - removeAt
```
protected void removeAt(int index)
```
    removes the mapping at index from the map.
    
    Overrides:
    
    removeAt in class TByteHash
    
    Parameters:
    
    index - an int value
  - getValues
```
public byte[] getValues()
```
    Returns the values of the map.
    
    Returns:
    
    a Collection value
  - keys
```
public byte[] keys()
```
    returns the keys of the map.
    
    Returns:
    
    a Set value
  - keys
```
public byte[] keys(byte[] a)
```
    returns the keys of the map.
    
    Parameters:
    
    a - 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:
    
    a Set value
  - containsValue
```
public boolean containsValue(byte val)
```
    checks for the presence of val in the values of the map.
    
    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.
    
    Parameters:
    
    key - an byte value
    
    Returns:
    
    a boolean value
  - forEachKey
```
public boolean forEachKey(TByteProcedure procedure)
```
    Executes procedure for each key in the map.
    
    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.
    
    Parameters:
    
    procedure - a TByteProcedure 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.
    
    Parameters:
    
    procedure - a TOByteByteProcedure value
    
    Returns:
    
    false if the loop over the entries terminated because the procedure returned false for some entry.
  - retainEntries
```
public boolean retainEntries(TByteByteProcedure procedure)
```
    Retains only those entries in the map for which the procedure returns a true value.
    
    Parameters:
    
    procedure - determines which entries to keep
    
    Returns:
    
    true if the map was modified.
  - transformValues
```
public void transformValues(TByteFunction function)
```
    Transform the values in this map using function.
    
    Parameters:
    
    function - a TByteFunction value
  - increment
```
public boolean increment(byte key)
```
    Increments the primitive value mapped to key by 1
    
    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.
    
    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.
    
    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
    
    Since:
    
    2.0b1
  - writeExternal
```
public void writeExternal(ObjectOutput out)
                   throws IOException
```
    Specified by:
    
    writeExternal in interface Externalizable
    
    Overrides:
    
    writeExternal in class THash
    
    Throws:
    
    IOException
  - readExternal
```
public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException
```
    Specified by:
    
    readExternal in interface Externalizable
    
    Overrides:
    
    readExternal in class THash
    
    Throws:
    
    IOException
    
    ClassNotFoundException

Class TByteByteHashMap

Field Summary

Fields

Fields inherited from class gnu.trove.TByteHash

Fields inherited from class gnu.trove.TPrimitiveHash

Fields inherited from class gnu.trove.THash

Constructor Summary

Constructors

Method Summary

Methods inherited from class gnu.trove.TByteHash

Methods inherited from class gnu.trove.TPrimitiveHash

Methods inherited from class gnu.trove.THash

Methods inherited from class java.lang.Object

Field Detail

_values

Constructor Detail

TByteByteHashMap

TByteByteHashMap

TByteByteHashMap

TByteByteHashMap

TByteByteHashMap

TByteByteHashMap

Method Detail

clone

iterator

setUp

put

putIfAbsent

rehash

get

clear

remove

equals

hashCode

removeAt

getValues

keys

keys

containsValue

containsKey

forEachKey

forEachValue

forEachEntry

retainEntries

transformValues

increment

adjustValue

adjustOrPutValue

writeExternal

readExternal