Package gnu.trove.map.hash
Class TShortByteHashMap
java.lang.Object
gnu.trove.impl.hash.THash
gnu.trove.impl.hash.TPrimitiveHash
gnu.trove.impl.hash.TShortByteHash
gnu.trove.map.hash.TShortByteHashMap
- All Implemented Interfaces:
TShortByteMap
,Externalizable
,Serializable
An open addressed Map implementation for short keys and byte values.
- See Also:
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprotected class
a view onto the keys of the map.protected class
a view onto the values of the map. -
Field Summary
FieldsFields inherited from class gnu.trove.impl.hash.TShortByteHash
_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
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Constructor Summary
ConstructorsConstructorDescriptionCreates a newTShortByteHashMap
instance with the default capacity and load factor.TShortByteHashMap
(int initialCapacity) Creates a newTShortByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.TShortByteHashMap
(int initialCapacity, float loadFactor) Creates a newTShortByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.TShortByteHashMap
(int initialCapacity, float loadFactor, short noEntryKey, byte noEntryValue) Creates a newTShortByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.TShortByteHashMap
(short[] keys, byte[] values) Creates a newTShortByteHashMap
instance containing all of the entries in the map passed in.Creates a newTShortByteHashMap
instance containing all of the entries in the map passed in. -
Method Summary
Modifier and TypeMethodDescriptionbyte
adjustOrPutValue
(short 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
(short key, byte amount) Adjusts the primitive value mapped to key.void
clear()
Empties the collection.boolean
containsKey
(short 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
boolean
forEachEntry
(TShortByteProcedure procedure) Executes procedure for each key/value entry in the map.boolean
forEachKey
(TShortProcedure procedure) Executes procedure for each key in the map.boolean
forEachValue
(TByteProcedure procedure) Executes procedure for each value in the map.byte
get
(short key) Retrieves the value for key.int
hashCode()
boolean
increment
(short key) Increments the primitive value mapped to key by 1boolean
isEmpty()
Tells whether this set is currently holding any elements.iterator()
short[]
keys()
Returns the keys of the map as an array of short values.short[]
keys
(short[] array) Returns the keys of the map.keySet()
Returns the keys of the map as a TShortSetbyte
put
(short key, byte value) Inserts a key/value pair into the map.void
putAll
(TShortByteMap map) Put all the entries from the given map into this map.void
Put all the entries from the given Map into this map.byte
putIfAbsent
(short key, byte value) Inserts a key/value pair into the map if the specified key is not already associated with a value.void
protected void
rehash
(int newCapacity) Rehashes the set.byte
remove
(short key) Deletes a key/value pair from the map.protected void
removeAt
(int index) Releases the element currently stored at index.boolean
retainEntries
(TShortByteProcedure 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.toString()
void
transformValues
(TByteFunction function) Transform the values in this map using function.Returns the values of the map as a TByteCollectionbyte[]
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
Methods inherited from class gnu.trove.impl.hash.TShortByteHash
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.TShortByteMap
getNoEntryKey, getNoEntryValue, size
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Field Details
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_values
protected transient byte[] _valuesthe values of the map
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Constructor Details
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TShortByteHashMap
public TShortByteHashMap()Creates a newTShortByteHashMap
instance with the default capacity and load factor. -
TShortByteHashMap
public TShortByteHashMap(int initialCapacity) Creates a newTShortByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.- Parameters:
initialCapacity
- anint
value
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TShortByteHashMap
public TShortByteHashMap(int initialCapacity, float loadFactor) Creates a newTShortByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.- Parameters:
initialCapacity
- anint
valueloadFactor
- afloat
value
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TShortByteHashMap
public TShortByteHashMap(int initialCapacity, float loadFactor, short noEntryKey, byte noEntryValue) Creates a newTShortByteHashMap
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.- Parameters:
initialCapacity
- anint
valueloadFactor
- afloat
valuenoEntryKey
- ashort
value that represents null for the Key set.noEntryValue
- abyte
value that represents null for the Value set.
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TShortByteHashMap
public TShortByteHashMap(short[] keys, byte[] values) Creates a newTShortByteHashMap
instance containing all of the entries in the map passed in.- Parameters:
keys
- a short array containing the keys for the matching values.values
- a byte array containing the values.
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TShortByteHashMap
Creates a newTShortByteHashMap
instance containing all of the entries in the map passed in.- Parameters:
map
- a TShortByteMap that will be duplicated.
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Method Details
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setUp
protected int setUp(int initialCapacity) initializes the hashtable to a prime capacity which is at least initialCapacity + 1.- Overrides:
setUp
in classTShortByteHash
- Parameters:
initialCapacity
- anint
value- Returns:
- the actual capacity chosen
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rehash
protected void rehash(int newCapacity) Rehashes the set. -
put
public byte put(short key, byte value) Inserts a key/value pair into the map.- Specified by:
put
in interfaceTShortByteMap
- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TShortByteMap.getNoEntryValue()
).
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putIfAbsent
public byte putIfAbsent(short 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 interfaceTShortByteMap
- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TShortByteMap.getNoEntryValue()
).
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putAll
Put all the entries from the given Map into this map.- Specified by:
putAll
in interfaceTShortByteMap
- Parameters:
map
- The Map from which entries will be obtained to put into this map.
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putAll
Put all the entries from the given map into this map.- Specified by:
putAll
in interfaceTShortByteMap
- Parameters:
map
- The map from which entries will be obtained to put into this map.
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get
public byte get(short key) Retrieves the value for key.- Specified by:
get
in interfaceTShortByteMap
- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TShortByteMap.getNoEntryValue()
).
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clear
public void clear()Empties the collection.- Specified by:
clear
in interfaceTShortByteMap
- Overrides:
clear
in classTHash
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isEmpty
public boolean isEmpty()Tells whether this set is currently holding any elements.- Specified by:
isEmpty
in interfaceTShortByteMap
- Overrides:
isEmpty
in classTHash
- Returns:
- a
boolean
value
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remove
public byte remove(short key) Deletes a key/value pair from the map.- Specified by:
remove
in interfaceTShortByteMap
- Parameters:
key
- anshort
value- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
TShortByteMap.getNoEntryValue()
).
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removeAt
protected void removeAt(int index) Releases the element currently stored at index.- Overrides:
removeAt
in classTShortByteHash
- Parameters:
index
- anint
value
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keySet
Returns the keys of the map as a TShortSet- Specified by:
keySet
in interfaceTShortByteMap
- Returns:
- the keys of the map as a TShortSet
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keys
public short[] keys()Returns the keys of the map as an array of short values.- Specified by:
keys
in interfaceTShortByteMap
- Returns:
- the keys of the map as an array of short values.
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keys
public short[] keys(short[] array) Returns the keys of the map.- Specified by:
keys
in interfaceTShortByteMap
- 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.
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valueCollection
Returns the values of the map as a TByteCollection- Specified by:
valueCollection
in interfaceTShortByteMap
- Returns:
- the values of the map as a TByteCollection
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values
public byte[] values()Returns the values of the map as an array of #e# values.- Specified by:
values
in interfaceTShortByteMap
- Returns:
- the values of the map as an array of #e# values.
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values
public byte[] values(byte[] array) Returns the values of the map using an existing array.- Specified by:
values
in interfaceTShortByteMap
- 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.
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containsValue
public boolean containsValue(byte val) Checks for the presence of val in the values of the map.- Specified by:
containsValue
in interfaceTShortByteMap
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containsKey
public boolean containsKey(short key) Checks for the present of key in the keys of the map.- Specified by:
containsKey
in interfaceTShortByteMap
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iterator
- Specified by:
iterator
in interfaceTShortByteMap
- Returns:
- a TShortByteIterator with access to this map's keys and values
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forEachKey
Executes procedure for each key in the map.- Specified by:
forEachKey
in interfaceTShortByteMap
- Parameters:
procedure
- aTShortProcedure
value- Returns:
- false if the loop over the keys terminated because the procedure returned false for some key.
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forEachValue
Executes procedure for each value in the map.- Specified by:
forEachValue
in interfaceTShortByteMap
- Parameters:
procedure
- aT#F#Procedure
value- Returns:
- false if the loop over the values terminated because the procedure returned false for some value.
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forEachEntry
Executes procedure for each key/value entry in the map.- Specified by:
forEachEntry
in interfaceTShortByteMap
- Parameters:
procedure
- aTOShortByteProcedure
value- Returns:
- false if the loop over the entries terminated because the procedure returned false for some entry.
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transformValues
Transform the values in this map using function.- Specified by:
transformValues
in interfaceTShortByteMap
- Parameters:
function
- aTByteFunction
value
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retainEntries
Retains only those entries in the map for which the procedure returns a true value.- Specified by:
retainEntries
in interfaceTShortByteMap
- Parameters:
procedure
- determines which entries to keep- Returns:
- true if the map was modified.
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increment
public boolean increment(short key) Increments the primitive value mapped to key by 1- Specified by:
increment
in interfaceTShortByteMap
- Parameters:
key
- the key of the value to increment- Returns:
- true if a mapping was found and modified.
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adjustValue
public boolean adjustValue(short key, byte amount) Adjusts the primitive value mapped to key.- Specified by:
adjustValue
in interfaceTShortByteMap
- Parameters:
key
- the key of the value to incrementamount
- the amount to adjust the value by.- Returns:
- true if a mapping was found and modified.
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adjustOrPutValue
public byte adjustOrPutValue(short 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 put_amount is put in the map.- Specified by:
adjustOrPutValue
in interfaceTShortByteMap
- Parameters:
key
- the key of the value to incrementadjust_amount
- the amount to adjust the value byput_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
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equals
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hashCode
public int hashCode() -
toString
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writeExternal
- Specified by:
writeExternal
in interfaceExternalizable
- Overrides:
writeExternal
in classTShortByteHash
- Throws:
IOException
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readExternal
- Specified by:
readExternal
in interfaceExternalizable
- Overrides:
readExternal
in classTShortByteHash
- Throws:
IOException
ClassNotFoundException
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