gnu.trove.map.hash

Class TByteLongHashMap

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TByteLongHash

gnu.trove.map.hash.TByteLongHashMap

All Implemented Interfaces:

TByteLongMap, java.io.Externalizable, java.io.Serializable

public class TByteLongHashMap
extends TByteLongHash
implements TByteLongMap, java.io.Externalizable

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

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	TByteLongHashMap.TKeyView a view onto the keys of the map.
protected class	TByteLongHashMap.TValueView a view onto the values of the map.

Field Summary

Fields

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

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

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

Method Summary

Modifier and Type	Method and Description
long	adjustOrPutValue(byte key, long adjust_amount, long put_amount) Adjusts the primitive value mapped to the key if the key is present in the map.
boolean	adjustValue(byte key, long 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(long val) Checks for the presence of val in the values of the map.
boolean	equals(java.lang.Object other)
boolean	forEachEntry(TByteLongProcedure 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(TLongProcedure procedure) Executes procedure for each value in the map.
long	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.
TByteLongIterator	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
long	put(byte key, long value) Inserts a key/value pair into the map.
void	putAll(java.util.Map<? extends java.lang.Byte,? extends java.lang.Long> map) Put all the entries from the given Map into this map.
void	putAll(TByteLongMap map) Put all the entries from the given map into this map.
long	putIfAbsent(byte key, long 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.
long	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(TByteLongProcedure 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(TLongFunction function) Transform the values in this map using function.
TLongCollection	valueCollection() Returns the values of the map as a TLongCollection
long[]	values() Returns the values of the map as an array of #e# values.
long[]	values(long[] 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.TByteLongHash

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, fastCeil, getAutoCompactionFactor, postInsertHook, reenableAutoCompaction, saturatedCast, 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.TByteLongMap

getNoEntryKey, getNoEntryValue, size

Field Detail

_values

protected transient long[] _values

the values of the map

Constructor Detail

TByteLongHashMap

public TByteLongHashMap()

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

TByteLongHashMap

public TByteLongHashMap(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TByteLongHashMap

public TByteLongHashMap(int initialCapacity,
                        float loadFactor)

Creates a new TByteLongHashMap 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

TByteLongHashMap

public TByteLongHashMap(int initialCapacity,
                        float loadFactor,
                        byte noEntryKey,
                        long noEntryValue)

Creates a new TByteLongHashMap 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 long value that represents null for the Value set.

TByteLongHashMap

public TByteLongHashMap(byte[] keys,
                        long[] values)

Creates a new TByteLongHashMap 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 long array containing the values.

TByteLongHashMap

public TByteLongHashMap(TByteLongMap map)

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

Parameters:

map - a TByteLongMap 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 TByteLongHash

Parameters:

initialCapacity - an int value

Returns:

the actual capacity chosen

rehash

protected void rehash(int newCapacity)

Rehashes the set.

Specified by:

rehash in class THash

Parameters:

newCapacity - an int value

put

public long put(byte key,
                long value)

Inserts a key/value pair into the map.

Specified by:

put in interface TByteLongMap

Returns:

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

putIfAbsent

public long putIfAbsent(byte key,
                        long 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 TByteLongMap

Returns:

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

putAll

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

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

Specified by:

putAll in interface TByteLongMap

Parameters:

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

putAll

public void putAll(TByteLongMap map)

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

Specified by:

putAll in interface TByteLongMap

Parameters:

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

get

public long get(byte key)

Retrieves the value for key.

Specified by:

get in interface TByteLongMap

Returns:

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

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TByteLongMap

Overrides:

clear in class THash

isEmpty

public boolean isEmpty()

Tells whether this set is currently holding any elements.

Specified by:

isEmpty in interface TByteLongMap

Overrides:

isEmpty in class THash

Returns:

a boolean value

remove

public long remove(byte key)

Deletes a key/value pair from the map.

Specified by:

remove in interface TByteLongMap

Parameters:

key - an byte value

Returns:

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

removeAt

protected void removeAt(int index)

Releases the element currently stored at index.

Overrides:

removeAt in class TByteLongHash

Parameters:

index - an int value

keySet

public TByteSet keySet()

Returns the keys of the map as a TByteSet

Specified by:

keySet in interface TByteLongMap

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 TByteLongMap

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 TByteLongMap

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 TLongCollection valueCollection()

Returns the values of the map as a TLongCollection

Specified by:

valueCollection in interface TByteLongMap

Returns:

the values of the map as a TLongCollection

values

public long[] values()

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

Specified by:

values in interface TByteLongMap

Returns:

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

values

public long[] values(long[] array)

Returns the values of the map using an existing array.

Specified by:

values in interface TByteLongMap

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(long val)

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

Specified by:

containsValue in interface TByteLongMap

containsKey

public boolean containsKey(byte key)

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

Specified by:

containsKey in interface TByteLongMap

iterator

public TByteLongIterator iterator()

Specified by:

iterator in interface TByteLongMap

Returns:

a TByteLongIterator 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 TByteLongMap

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(TLongProcedure procedure)

Executes procedure for each value in the map.

Specified by:

forEachValue in interface TByteLongMap

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(TByteLongProcedure procedure)

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

Specified by:

forEachEntry in interface TByteLongMap

Parameters:

procedure - a TOByteLongProcedure value

Returns:

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

transformValues

public void transformValues(TLongFunction function)

Transform the values in this map using function.

Specified by:

transformValues in interface TByteLongMap

Parameters:

function - a TLongFunction value

retainEntries

public boolean retainEntries(TByteLongProcedure procedure)

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

Specified by:

retainEntries in interface TByteLongMap

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 TByteLongMap

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

public boolean adjustValue(byte key,
                           long amount)

Adjusts the primitive value mapped to key.

Specified by:

adjustValue in interface TByteLongMap

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 long adjustOrPutValue(byte key,
                             long adjust_amount,
                             long put_amount)

Adjusts the primitive value mapped to the key if the key is present in the map. Otherwise, the put_amount is put in the map.

Specified by:

adjustOrPutValue in interface TByteLongMap

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 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 TByteLongHash

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 TByteLongHash

Throws:

java.io.IOException

java.lang.ClassNotFoundException