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java.lang.Objectgnu.trove.THash
gnu.trove.TPrimitiveHash
gnu.trove.TIntHash
gnu.trove.TIntIntHashMap
public class TIntIntHashMap
An open addressed Map implementation for int keys and int values. Created: Sun Nov 4 08:52:45 2001
Field Summary | |
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protected int[] |
_values
the values of the map |
Fields inherited from class gnu.trove.TIntHash |
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_hashingStrategy, _set |
Fields inherited from class gnu.trove.TPrimitiveHash |
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_states, FREE, FULL, REMOVED |
Fields inherited from class gnu.trove.THash |
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_autoCompactionFactor, _autoCompactRemovesRemaining, _free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR |
Constructor Summary | |
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TIntIntHashMap()
Creates a new TIntIntHashMap instance with the default
capacity and load factor. |
|
TIntIntHashMap(int initialCapacity)
Creates a new TIntIntHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor. |
|
TIntIntHashMap(int initialCapacity,
float loadFactor)
Creates a new TIntIntHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor. |
|
TIntIntHashMap(int initialCapacity,
float loadFactor,
TIntHashingStrategy strategy)
Creates a new TIntIntHashMap instance with a prime
value at or near the specified capacity and load factor. |
|
TIntIntHashMap(int initialCapacity,
TIntHashingStrategy strategy)
Creates a new TIntIntHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime. |
|
TIntIntHashMap(TIntHashingStrategy strategy)
Creates a new TIntIntHashMap instance with the default
capacity and load factor. |
Method Summary | |
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int |
adjustOrPutValue(int key,
int adjust_amount,
int put_amount)
Adjusts the primitive value mapped to the key if the key is present in the map. |
boolean |
adjustValue(int key,
int amount)
Adjusts the primitive value mapped to key. |
void |
clear()
Empties the map. |
java.lang.Object |
clone()
|
boolean |
containsKey(int key)
checks for the present of key in the keys of the map. |
boolean |
containsValue(int val)
checks for the presence of val in the values of the map. |
boolean |
equals(java.lang.Object other)
Compares this map with another map for equality of their stored entries. |
boolean |
forEachEntry(TIntIntProcedure procedure)
Executes procedure for each key/value entry in the map. |
boolean |
forEachKey(TIntProcedure procedure)
Executes procedure for each key in the map. |
boolean |
forEachValue(TIntProcedure procedure)
Executes procedure for each value in the map. |
int |
get(int key)
retrieves the value for key |
int[] |
getValues()
Returns the values of the map. |
int |
hashCode()
|
boolean |
increment(int key)
Increments the primitive value mapped to key by 1 |
TIntIntIterator |
iterator()
|
int[] |
keys()
returns the keys of the map. |
int[] |
keys(int[] a)
returns the keys of the map. |
int |
put(int key,
int value)
Inserts a key/value pair into the map. |
void |
putAll(TIntIntHashMap map)
Put all the entries from the given map into this map. |
int |
putIfAbsent(int key,
int 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 map to the new capacity. |
int |
remove(int key)
Deletes a key/value pair from the map. |
protected void |
removeAt(int index)
removes the mapping at index from the map. |
boolean |
retainEntries(TIntIntProcedure 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(TIntFunction function)
Transform the values in this map using function. |
void |
writeExternal(java.io.ObjectOutput out)
|
Methods inherited from class gnu.trove.TIntHash |
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computeHashCode, contains, forEach, index, insertionIndex |
Methods inherited from class gnu.trove.TPrimitiveHash |
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capacity |
Methods inherited from class gnu.trove.THash |
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calculateGrownCapacity, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected transient int[] _values
Constructor Detail |
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public TIntIntHashMap()
TIntIntHashMap
instance with the default
capacity and load factor.
public TIntIntHashMap(int initialCapacity)
TIntIntHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity
- an int
valuepublic TIntIntHashMap(int initialCapacity, float loadFactor)
TIntIntHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity
- an int
valueloadFactor
- a float
valuepublic TIntIntHashMap(TIntHashingStrategy strategy)
TIntIntHashMap
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.public TIntIntHashMap(int initialCapacity, TIntHashingStrategy strategy)
TIntIntHashMap
instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
initialCapacity
- an int
valuestrategy
- used to compute hash codes and to compare keys.public TIntIntHashMap(int initialCapacity, float loadFactor, TIntHashingStrategy strategy)
TIntIntHashMap
instance with a prime
value at or near the specified capacity and load factor.
initialCapacity
- used to find a prime capacity for the table.loadFactor
- used to calculate the threshold over which
rehashing takes place.strategy
- used to compute hash codes and to compare keys.Method Detail |
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public java.lang.Object clone()
clone
in class TIntHash
public TIntIntIterator iterator()
protected int setUp(int initialCapacity)
setUp
in class TIntHash
initialCapacity
- an int
value
public int put(int key, int value)
key
- an int
valuevalue
- an int
value
public int putIfAbsent(int key, int value)
key
- an int
valuevalue
- an int
value
public void putAll(TIntIntHashMap map)
map
- The map from which entries will be obtained to put into this map.protected void rehash(int newCapacity)
rehash
in class THash
newCapacity
- an int
valuepublic int get(int key)
key
- an int
value
public void clear()
clear
in class THash
public int remove(int key)
key
- an int
value
int
value, or (int)0 if no mapping for key existspublic boolean equals(java.lang.Object other)
equals
in class java.lang.Object
other
- an Object
value
boolean
valuepublic int hashCode()
hashCode
in class java.lang.Object
protected void removeAt(int index)
removeAt
in class TIntHash
index
- an int
valuepublic int[] getValues()
Collection
valuepublic int[] keys()
Set
valuepublic int[] keys(int[] a)
a
- 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.
Set
valuepublic boolean containsValue(int val)
val
- an int
value
boolean
valuepublic boolean containsKey(int key)
key
- an int
value
boolean
valuepublic boolean forEachKey(TIntProcedure procedure)
procedure
- a TIntProcedure
value
public boolean forEachValue(TIntProcedure procedure)
procedure
- a TIntProcedure
value
public boolean forEachEntry(TIntIntProcedure procedure)
procedure
- a TOIntIntProcedure
value
public boolean retainEntries(TIntIntProcedure procedure)
procedure
- determines which entries to keep
public void transformValues(TIntFunction function)
function
- a TIntFunction
valuepublic boolean increment(int key)
key
- the key of the value to increment
public boolean adjustValue(int key, int amount)
key
- the key of the value to incrementamount
- the amount to adjust the value by.
public int adjustOrPutValue(int key, int adjust_amount, int put_amount)
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 initial present
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
writeExternal
in interface java.io.Externalizable
writeExternal
in class THash
java.io.IOException
public void readExternal(java.io.ObjectInput in) throws java.io.IOException, java.lang.ClassNotFoundException
readExternal
in interface java.io.Externalizable
readExternal
in class THash
java.io.IOException
java.lang.ClassNotFoundException
public java.lang.String toString()
toString
in class java.lang.Object
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