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java.lang.Objectgnu.trove.THash
gnu.trove.TPrimitiveHash
gnu.trove.TDoubleHash
gnu.trove.TDoubleByteHashMap
public class TDoubleByteHashMap
An open addressed Map implementation for double keys and byte values. Created: Sun Nov 4 08:52:45 2001
Field Summary | |
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protected byte[] |
_values
the values of the map |
Fields inherited from class gnu.trove.TDoubleHash |
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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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TDoubleByteHashMap()
Creates a new TDoubleByteHashMap instance with the default
capacity and load factor. |
|
TDoubleByteHashMap(int initialCapacity)
Creates a new TDoubleByteHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor. |
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TDoubleByteHashMap(int initialCapacity,
float loadFactor)
Creates a new TDoubleByteHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor. |
|
TDoubleByteHashMap(int initialCapacity,
float loadFactor,
TDoubleHashingStrategy strategy)
Creates a new TDoubleByteHashMap instance with a prime
value at or near the specified capacity and load factor. |
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TDoubleByteHashMap(int initialCapacity,
TDoubleHashingStrategy strategy)
Creates a new TDoubleByteHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime. |
|
TDoubleByteHashMap(TDoubleHashingStrategy strategy)
Creates a new TDoubleByteHashMap instance with the default
capacity and load factor. |
Method Summary | |
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byte |
adjustOrPutValue(double 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(double key,
byte amount)
Adjusts the primitive value mapped to key. |
void |
clear()
Empties the map. |
java.lang.Object |
clone()
|
boolean |
containsKey(double 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 |
equals(java.lang.Object other)
Compares this map with another map for equality of their stored entries. |
boolean |
forEachEntry(TDoubleByteProcedure procedure)
Executes procedure for each key/value entry in the map. |
boolean |
forEachKey(TDoubleProcedure procedure)
Executes procedure for each key in the map. |
boolean |
forEachValue(TByteProcedure procedure)
Executes procedure for each value in the map. |
byte |
get(double key)
retrieves the value for key |
byte[] |
getValues()
Returns the values of the map. |
int |
hashCode()
|
boolean |
increment(double key)
Increments the primitive value mapped to key by 1 |
TDoubleByteIterator |
iterator()
|
double[] |
keys()
returns the keys of the map. |
double[] |
keys(double[] a)
returns the keys of the map. |
byte |
put(double key,
byte value)
Inserts a key/value pair into the map. |
void |
putAll(TDoubleByteHashMap map)
Put all the entries from the given map into this map. |
byte |
putIfAbsent(double key,
byte 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. |
byte |
remove(double key)
Deletes a key/value pair from the map. |
protected void |
removeAt(int index)
removes the mapping at index from the map. |
boolean |
retainEntries(TDoubleByteProcedure 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(TByteFunction function)
Transform the values in this map using function. |
void |
writeExternal(java.io.ObjectOutput out)
|
Methods inherited from class gnu.trove.TDoubleHash |
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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 byte[] _values
Constructor Detail |
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public TDoubleByteHashMap()
TDoubleByteHashMap
instance with the default
capacity and load factor.
public TDoubleByteHashMap(int initialCapacity)
TDoubleByteHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity
- an int
valuepublic TDoubleByteHashMap(int initialCapacity, float loadFactor)
TDoubleByteHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity
- an int
valueloadFactor
- a float
valuepublic TDoubleByteHashMap(TDoubleHashingStrategy strategy)
TDoubleByteHashMap
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.public TDoubleByteHashMap(int initialCapacity, TDoubleHashingStrategy strategy)
TDoubleByteHashMap
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 TDoubleByteHashMap(int initialCapacity, float loadFactor, TDoubleHashingStrategy strategy)
TDoubleByteHashMap
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 TDoubleHash
public TDoubleByteIterator iterator()
protected int setUp(int initialCapacity)
setUp
in class TDoubleHash
initialCapacity
- an int
value
public byte put(double key, byte value)
key
- an double
valuevalue
- an byte
value
public byte putIfAbsent(double key, byte value)
key
- an double
valuevalue
- an byte
value
public void putAll(TDoubleByteHashMap 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 byte get(double key)
key
- an double
value
public void clear()
clear
in class THash
public byte remove(double key)
key
- an double
value
byte
value, or (double)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 TDoubleHash
index
- an int
valuepublic byte[] getValues()
Collection
valuepublic double[] keys()
Set
valuepublic double[] keys(double[] 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(byte val)
val
- an byte
value
boolean
valuepublic boolean containsKey(double key)
key
- an double
value
boolean
valuepublic boolean forEachKey(TDoubleProcedure procedure)
procedure
- a TDoubleProcedure
value
public boolean forEachValue(TByteProcedure procedure)
procedure
- a TByteProcedure
value
public boolean forEachEntry(TDoubleByteProcedure procedure)
procedure
- a TODoubleByteProcedure
value
public boolean retainEntries(TDoubleByteProcedure procedure)
procedure
- determines which entries to keep
public void transformValues(TByteFunction function)
function
- a TByteFunction
valuepublic boolean increment(double key)
key
- the key of the value to increment
public boolean adjustValue(double key, byte amount)
key
- the key of the value to incrementamount
- the amount to adjust the value by.
public byte adjustOrPutValue(double key, byte adjust_amount, byte 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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