gnu.trove.map.hash
Class TByteDoubleHashMap

java.lang.Object
  gnu.trove.impl.hash.THash
      gnu.trove.impl.hash.TPrimitiveHash
          gnu.trove.impl.hash.TByteDoubleHash
              gnu.trove.map.hash.TByteDoubleHashMap

All Implemented Interfaces:

TByteDoubleMap, java.io.Externalizable, java.io.Serializable

public class TByteDoubleHashMap
extends gnu.trove.impl.hash.TByteDoubleHash
implements TByteDoubleMap, java.io.Externalizable

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

See Also:

Serialized Form

Nested Class Summary

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

Field Summary

protected double[]

_values the values of the map

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

_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

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

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

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

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

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

TByteDoubleHashMap(TByteDoubleMap map)
Creates a new TByteDoubleHashMap instance containing all of the entries in the map passed in.

Method Summary

double	adjustOrPutValue(byte key, double adjust_amount, double put_amount) Adjusts the primitive value mapped to the key if the key is present in the map.
boolean	adjustValue(byte key, double amount) Adjusts the primitive value mapped to key.
void	clear() Empties the collection.
boolean	containsKey(byte key) Checks for the present of key in the keys of the map.
boolean	containsValue(double val) Checks for the presence of val in the values of the map.
boolean	equals(java.lang.Object other)
boolean	forEachEntry(TByteDoubleProcedure 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(TDoubleProcedure procedure) Executes procedure for each value in the map.
double	get(byte key) Retrieves the value for key
int	hashCode()
boolean	increment(byte key) Increments the primitive value mapped to key by 1
boolean	isEmpty() Tells whether this set is currently holding any elements.
TByteDoubleIterator	iterator()
byte[]	keys() Returns the keys of the map as an array of byte values.
byte[]	keys(byte[] array) Returns the keys of the map.
TByteSet	keySet() Returns the keys of the map as a TByteSet
double	put(byte key, double value) Inserts a key/value pair into the map.
void	putAll(java.util.Map<? extends java.lang.Byte,? extends java.lang.Double> map) Put all the entries from the given Map into this map.
void	putAll(TByteDoubleMap map) Put all the entries from the given map into this map.
double	putIfAbsent(byte key, double 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.
double	remove(byte key) Deletes a key/value pair from the map.
protected void	removeAt(int index) Releases the element currently stored at index.
boolean	retainEntries(TByteDoubleProcedure 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(TDoubleFunction function) Transform the values in this map using function.
TDoubleCollection	valueCollection() Returns the values of the map as a TDoubleCollection
double[]	values() Returns the values of the map as an array of #e# values.
double[]	values(double[] 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.TByteDoubleHash

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.TByteDoubleMap

getNoEntryKey, getNoEntryValue, size

Field Detail

_values

protected transient double[] _values

the values of the map

Constructor Detail

TByteDoubleHashMap

public TByteDoubleHashMap()

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

TByteDoubleHashMap

public TByteDoubleHashMap(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TByteDoubleHashMap

public TByteDoubleHashMap(int initialCapacity,
                          float loadFactor)

Creates a new TByteDoubleHashMap 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

TByteDoubleHashMap

public TByteDoubleHashMap(int initialCapacity,
                          float loadFactor,
                          byte noEntryKey,
                          double noEntryValue)

Creates a new TByteDoubleHashMap 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 double value that represents null for the Value set.

TByteDoubleHashMap

public TByteDoubleHashMap(byte[] keys,
                          double[] values)

Creates a new TByteDoubleHashMap 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 double array containing the values.

TByteDoubleHashMap

public TByteDoubleHashMap(TByteDoubleMap map)

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

Parameters:

map - a TByteDoubleMap 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.TByteDoubleHash

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 double put(byte key,
                  double value)

Inserts a key/value pair into the map.

Specified by:

put in interface TByteDoubleMap

Parameters:

key - an byte value

value - an double value

Returns:

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

putIfAbsent

public double putIfAbsent(byte key,
                          double 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 TByteDoubleMap

Parameters:

key - an byte value

value - an double value

Returns:

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

putAll

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

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

Specified by:

putAll in interface TByteDoubleMap

Parameters:

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

putAll

public void putAll(TByteDoubleMap map)

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

Specified by:

putAll in interface TByteDoubleMap

Parameters:

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

get

public double get(byte key)

Retrieves the value for key

Specified by:

get in interface TByteDoubleMap

Parameters:

key - an byte value

Returns:

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

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TByteDoubleMap

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 TByteDoubleMap

Overrides:

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

Returns:

a boolean value

remove

public double remove(byte key)

Deletes a key/value pair from the map.

Specified by:

remove in interface TByteDoubleMap

Parameters:

key - an byte value

Returns:

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

removeAt

protected void removeAt(int index)

Releases the element currently stored at index.

Overrides:

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

Parameters:

index - an int value

keySet

public TByteSet keySet()

Returns the keys of the map as a TByteSet

Specified by:

keySet in interface TByteDoubleMap

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 TByteDoubleMap

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 TByteDoubleMap

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 TDoubleCollection valueCollection()

Returns the values of the map as a TDoubleCollection

Specified by:

valueCollection in interface TByteDoubleMap

Returns:

the values of the map as a TDoubleCollection

values

public double[] values()

Returns the values of the map as an array of #e# values.

Specified by:

values in interface TByteDoubleMap

Returns:

the values of the map as an array of #e# values.

values

public double[] values(double[] array)

Returns the values of the map using an existing array.

Specified by:

values in interface TByteDoubleMap

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(double val)

Checks for the presence of val in the values of the map.

Specified by:

containsValue in interface TByteDoubleMap

Parameters:

val - an double 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 TByteDoubleMap

Parameters:

key - an byte value

Returns:

a boolean value

iterator

public TByteDoubleIterator iterator()

Specified by:

iterator in interface TByteDoubleMap

Returns:

a TByteDoubleIterator 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 TByteDoubleMap

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(TDoubleProcedure procedure)

Executes procedure for each value in the map.

Specified by:

forEachValue in interface TByteDoubleMap

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(TByteDoubleProcedure procedure)

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

Specified by:

forEachEntry in interface TByteDoubleMap

Parameters:

procedure - a TOByteDoubleProcedure value

Returns:

false if the loop over the entries terminated because the procedure returned false for some entry.

transformValues

public void transformValues(TDoubleFunction function)

Transform the values in this map using function.

Specified by:

transformValues in interface TByteDoubleMap

Parameters:

function - a TDoubleFunction value

retainEntries

public boolean retainEntries(TByteDoubleProcedure procedure)

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

Specified by:

retainEntries in interface TByteDoubleMap

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 TByteDoubleMap

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

public boolean adjustValue(byte key,
                           double amount)

Adjusts the primitive value mapped to key.

Specified by:

adjustValue in interface TByteDoubleMap

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 double adjustOrPutValue(byte key,
                               double adjust_amount,
                               double 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 TByteDoubleMap

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.TByteDoubleHash

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.TByteDoubleHash

Throws:

java.io.IOException

java.lang.ClassNotFoundException