gnu.trove.map.hash
Class TCharByteHashMap

java.lang.Object
  gnu.trove.impl.hash.THash
      gnu.trove.impl.hash.TPrimitiveHash
          gnu.trove.impl.hash.TCharByteHash
              gnu.trove.map.hash.TCharByteHashMap

All Implemented Interfaces:

TCharByteMap, java.io.Externalizable, java.io.Serializable

public class TCharByteHashMap
extends gnu.trove.impl.hash.TCharByteHash
implements TCharByteMap, java.io.Externalizable

An open addressed Map implementation for char keys and byte values.

See Also:

Serialized Form

Nested Class Summary

protected class	TCharByteHashMap.TKeyView a view onto the keys of the map.
protected class	TCharByteHashMap.TValueView a view onto the values of the map.

Field Summary

protected byte[]

_values the values of the map

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

_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

TCharByteHashMap()
Creates a new TCharByteHashMap instance with the default capacity and load factor.

TCharByteHashMap(char[] keys, byte[] values)
Creates a new TCharByteHashMap instance containing all of the entries in the map passed in.

TCharByteHashMap(int initialCapacity)
Creates a new TCharByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.

TCharByteHashMap(int initialCapacity, float loadFactor)
Creates a new TCharByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

TCharByteHashMap(int initialCapacity, float loadFactor, char noEntryKey, byte noEntryValue)
Creates a new TCharByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

TCharByteHashMap(TCharByteMap map)
Creates a new TCharByteHashMap instance containing all of the entries in the map passed in.

Method Summary

byte	adjustOrPutValue(char 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(char key, byte amount) Adjusts the primitive value mapped to key.
void	clear() Empties the collection.
boolean	containsKey(char 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(java.lang.Object other)
boolean	forEachEntry(TCharByteProcedure procedure) Executes procedure for each key/value entry in the map.
boolean	forEachKey(TCharProcedure procedure) Executes procedure for each key in the map.
boolean	forEachValue(TByteProcedure procedure) Executes procedure for each value in the map.
byte	get(char key) Retrieves the value for key
int	hashCode()
boolean	increment(char key) Increments the primitive value mapped to key by 1
boolean	isEmpty() Tells whether this set is currently holding any elements.
TCharByteIterator	iterator()
char[]	keys() Returns the keys of the map as an array of char values.
char[]	keys(char[] array) Returns the keys of the map.
TCharSet	keySet() Returns the keys of the map as a TCharSet
byte	put(char key, byte value) Inserts a key/value pair into the map.
void	putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Byte> map) Put all the entries from the given Map into this map.
void	putAll(TCharByteMap map) Put all the entries from the given map into this map.
byte	putIfAbsent(char key, byte value) Inserts a key/value pair into the map if the specified key is not already associated with a value.
void	readExternal(java.io.ObjectInput in)
protected void	rehash(int newCapacity) Rehashes the set.
byte	remove(char key) Deletes a key/value pair from the map.
protected void	removeAt(int index) Releases the element currently stored at index.
boolean	retainEntries(TCharByteProcedure 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.
java.lang.String	toString()
void	transformValues(TByteFunction function) Transform the values in this map using function.
TByteCollection	valueCollection() Returns the values of the map as a TByteCollection
byte[]	values() 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	writeExternal(java.io.ObjectOutput out)

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

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.TCharByteMap

getNoEntryKey, getNoEntryValue, size

Field Detail

_values

protected transient byte[] _values

the values of the map

Constructor Detail

TCharByteHashMap

public TCharByteHashMap()

Creates a new TCharByteHashMap instance with the default capacity and load factor.

TCharByteHashMap

public TCharByteHashMap(int initialCapacity)

Creates a new TCharByteHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.

Parameters:

initialCapacity - an int value

TCharByteHashMap

public TCharByteHashMap(int initialCapacity,
                        float loadFactor)

Creates a new TCharByteHashMap 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

TCharByteHashMap

public TCharByteHashMap(int initialCapacity,
                        float loadFactor,
                        char noEntryKey,
                        byte noEntryValue)

Creates a new TCharByteHashMap 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 char value that represents null for the Key set.

noEntryValue - a byte value that represents null for the Value set.

TCharByteHashMap

public TCharByteHashMap(char[] keys,
                        byte[] values)

Creates a new TCharByteHashMap instance containing all of the entries in the map passed in.

Parameters:

keys - a char array containing the keys for the matching values.

values - a byte array containing the values.

TCharByteHashMap

public TCharByteHashMap(TCharByteMap map)

Creates a new TCharByteHashMap instance containing all of the entries in the map passed in.

Parameters:

map - a TCharByteMap that will be duplicated.

Method Detail

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.TCharByteHash

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(char key,
                byte value)

Inserts a key/value pair into the map.

Specified by:

put in interface TCharByteMap

Parameters:

key - an char value

value - an byte value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TCharByteMap.getNoEntryValue()).

putIfAbsent

public byte putIfAbsent(char 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 TCharByteMap

Parameters:

key - an char value

value - an byte value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TCharByteMap.getNoEntryValue()).

putAll

public void putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Byte> map)

Put all the entries from the given Map into this map.

Specified by:

putAll in interface TCharByteMap

Parameters:

map - The Map from which entries will be obtained to put into this map.

putAll

public void putAll(TCharByteMap map)

Put all the entries from the given map into this map.

Specified by:

putAll in interface TCharByteMap

Parameters:

map - The map from which entries will be obtained to put into this map.

get

public byte get(char key)

Retrieves the value for key

Specified by:

get in interface TCharByteMap

Parameters:

key - an char value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TCharByteMap.getNoEntryValue()).

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TCharByteMap

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 TCharByteMap

Overrides:

isEmpty in class gnu.trove.impl.hash.THash

Returns:

a boolean value

remove

public byte remove(char key)

Deletes a key/value pair from the map.

Specified by:

remove in interface TCharByteMap

Parameters:

key - an char value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TCharByteMap.getNoEntryValue()).

removeAt

protected void removeAt(int index)

Releases the element currently stored at index.

Overrides:

removeAt in class gnu.trove.impl.hash.TCharByteHash

Parameters:

index - an int value

keySet

public TCharSet keySet()

Returns the keys of the map as a TCharSet

Specified by:

keySet in interface TCharByteMap

Returns:

the keys of the map as a TCharSet

keys

public char[] keys()

Returns the keys of the map as an array of char values.

Specified by:

keys in interface TCharByteMap

Returns:

the keys of the map as an array of char values.

keys

public char[] keys(char[] array)

Returns the keys of the map.

Specified by:

keys in interface TCharByteMap

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 TCharByteMap

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 TCharByteMap

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 TCharByteMap

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 TCharByteMap

Parameters:

val - an byte value

Returns:

a boolean value

containsKey

public boolean containsKey(char key)

Checks for the present of key in the keys of the map.

Specified by:

containsKey in interface TCharByteMap

Parameters:

key - an char value

Returns:

a boolean value

iterator

public TCharByteIterator iterator()

Specified by:

iterator in interface TCharByteMap

Returns:

a TCharByteIterator with access to this map's keys and values

forEachKey

public boolean forEachKey(TCharProcedure procedure)

Executes procedure for each key in the map.

Specified by:

forEachKey in interface TCharByteMap

Parameters:

procedure - a TCharProcedure 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 TCharByteMap

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(TCharByteProcedure procedure)

Executes procedure for each key/value entry in the map.

Specified by:

forEachEntry in interface TCharByteMap

Parameters:

procedure - a TOCharByteProcedure 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 TCharByteMap

Parameters:

function - a TByteFunction value

retainEntries

public boolean retainEntries(TCharByteProcedure procedure)

Retains only those entries in the map for which the procedure returns a true value.

Specified by:

retainEntries in interface TCharByteMap

Parameters:

procedure - determines which entries to keep

Returns:

true if the map was modified.

increment

public boolean increment(char key)

Increments the primitive value mapped to key by 1

Specified by:

increment in interface TCharByteMap

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

public boolean adjustValue(char key,
                           byte amount)

Adjusts the primitive value mapped to key.

Specified by:

adjustValue in interface TCharByteMap

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(char 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 TCharByteMap

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(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class gnu.trove.impl.hash.TCharByteHash

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class gnu.trove.impl.hash.TCharByteHash

Throws:

java.io.IOException

java.lang.ClassNotFoundException