gnu.trove.map.hash

Class TLongShortHashMap

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TLongShortHash

gnu.trove.map.hash.TLongShortHashMap

All Implemented Interfaces:

TLongShortMap, java.io.Externalizable, java.io.Serializable

public class TLongShortHashMap
extends TLongShortHash
implements TLongShortMap, java.io.Externalizable

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

See Also:

Serialized Form

Nested Class Summary

Nested Classes

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

Field Summary

Fields

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

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

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

Method Summary

Modifier and Type	Method and Description
short	adjustOrPutValue(long key, short adjust_amount, short put_amount) Adjusts the primitive value mapped to the key if the key is present in the map.
boolean	adjustValue(long key, short amount) Adjusts the primitive value mapped to key.
void	clear() Empties the collection.
boolean	containsKey(long key) Checks for the present of key in the keys of the map.
boolean	containsValue(short val) Checks for the presence of val in the values of the map.
boolean	equals(java.lang.Object other)
boolean	forEachEntry(TLongShortProcedure procedure) Executes procedure for each key/value entry in the map.
boolean	forEachKey(TLongProcedure procedure) Executes procedure for each key in the map.
boolean	forEachValue(TShortProcedure procedure) Executes procedure for each value in the map.
short	get(long key) Retrieves the value for key.
int	hashCode()
boolean	increment(long key) Increments the primitive value mapped to key by 1
boolean	isEmpty() Tells whether this set is currently holding any elements.
TLongShortIterator	iterator()
long[]	keys() Returns the keys of the map as an array of long values.
long[]	keys(long[] array) Returns the keys of the map.
TLongSet	keySet() Returns the keys of the map as a TLongSet
short	put(long key, short value) Inserts a key/value pair into the map.
void	putAll(java.util.Map<? extends java.lang.Long,? extends java.lang.Short> map) Put all the entries from the given Map into this map.
void	putAll(TLongShortMap map) Put all the entries from the given map into this map.
short	putIfAbsent(long key, short 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.
short	remove(long key) Deletes a key/value pair from the map.
protected void	removeAt(int index) Releases the element currently stored at index.
boolean	retainEntries(TLongShortProcedure 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(TShortFunction function) Transform the values in this map using function.
TShortCollection	valueCollection() Returns the values of the map as a TShortCollection
short[]	values() Returns the values of the map as an array of #e# values.
short[]	values(short[] 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.TLongShortHash

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.TLongShortMap

getNoEntryKey, getNoEntryValue, size

Field Detail

_values

protected transient short[] _values

the values of the map

Constructor Detail

TLongShortHashMap

public TLongShortHashMap()

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

TLongShortHashMap

public TLongShortHashMap(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TLongShortHashMap

public TLongShortHashMap(int initialCapacity,
                         float loadFactor)

Creates a new TLongShortHashMap 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

TLongShortHashMap

public TLongShortHashMap(int initialCapacity,
                         float loadFactor,
                         long noEntryKey,
                         short noEntryValue)

Creates a new TLongShortHashMap 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 long value that represents null for the Key set.

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

TLongShortHashMap

public TLongShortHashMap(long[] keys,
                         short[] values)

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

Parameters:

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

values - a short array containing the values.

TLongShortHashMap

public TLongShortHashMap(TLongShortMap map)

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

Parameters:

map - a TLongShortMap 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 TLongShortHash

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 short put(long key,
                 short value)

Inserts a key/value pair into the map.

Specified by:

put in interface TLongShortMap

Returns:

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

putIfAbsent

public short putIfAbsent(long key,
                         short 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 TLongShortMap

Returns:

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

putAll

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

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

Specified by:

putAll in interface TLongShortMap

Parameters:

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

putAll

public void putAll(TLongShortMap map)

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

Specified by:

putAll in interface TLongShortMap

Parameters:

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

get

public short get(long key)

Retrieves the value for key.

Specified by:

get in interface TLongShortMap

Returns:

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

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TLongShortMap

Overrides:

clear in class THash

isEmpty

public boolean isEmpty()

Tells whether this set is currently holding any elements.

Specified by:

isEmpty in interface TLongShortMap

Overrides:

isEmpty in class THash

Returns:

a boolean value

remove

public short remove(long key)

Deletes a key/value pair from the map.

Specified by:

remove in interface TLongShortMap

Parameters:

key - an long value

Returns:

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

removeAt

protected void removeAt(int index)

Releases the element currently stored at index.

Overrides:

removeAt in class TLongShortHash

Parameters:

index - an int value

keySet

public TLongSet keySet()

Returns the keys of the map as a TLongSet

Specified by:

keySet in interface TLongShortMap

Returns:

the keys of the map as a TLongSet

keys

public long[] keys()

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

Specified by:

keys in interface TLongShortMap

Returns:

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

keys

public long[] keys(long[] array)

Returns the keys of the map.

Specified by:

keys in interface TLongShortMap

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 TShortCollection valueCollection()

Returns the values of the map as a TShortCollection

Specified by:

valueCollection in interface TLongShortMap

Returns:

the values of the map as a TShortCollection

values

public short[] values()

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

Specified by:

values in interface TLongShortMap

Returns:

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

values

public short[] values(short[] array)

Returns the values of the map using an existing array.

Specified by:

values in interface TLongShortMap

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(short val)

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

Specified by:

containsValue in interface TLongShortMap

containsKey

public boolean containsKey(long key)

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

Specified by:

containsKey in interface TLongShortMap

iterator

public TLongShortIterator iterator()

Specified by:

iterator in interface TLongShortMap

Returns:

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

forEachKey

public boolean forEachKey(TLongProcedure procedure)

Executes procedure for each key in the map.

Specified by:

forEachKey in interface TLongShortMap

Parameters:

procedure - a TLongProcedure value

Returns:

false if the loop over the keys terminated because the procedure returned false for some key.

forEachValue

public boolean forEachValue(TShortProcedure procedure)

Executes procedure for each value in the map.

Specified by:

forEachValue in interface TLongShortMap

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(TLongShortProcedure procedure)

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

Specified by:

forEachEntry in interface TLongShortMap

Parameters:

procedure - a TOLongShortProcedure value

Returns:

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

transformValues

public void transformValues(TShortFunction function)

Transform the values in this map using function.

Specified by:

transformValues in interface TLongShortMap

Parameters:

function - a TShortFunction value

retainEntries

public boolean retainEntries(TLongShortProcedure procedure)

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

Specified by:

retainEntries in interface TLongShortMap

Parameters:

procedure - determines which entries to keep

Returns:

true if the map was modified.

increment

public boolean increment(long key)

Increments the primitive value mapped to key by 1

Specified by:

increment in interface TLongShortMap

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

public boolean adjustValue(long key,
                           short amount)

Adjusts the primitive value mapped to key.

Specified by:

adjustValue in interface TLongShortMap

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 short adjustOrPutValue(long key,
                              short adjust_amount,
                              short 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 TLongShortMap

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 TLongShortHash

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 TLongShortHash

Throws:

java.io.IOException

java.lang.ClassNotFoundException