gnu.trove
Class TDoubleObjectHashMap<V>
TDoubleHash
gnu.trove.TDoubleObjectHashMap<V>
- Externalizable
public class TDoubleObjectHashMap<V>
extends TDoubleHash
implements Externalizable
An open addressed Map implementation for double keys and Object values.
Created: Sun Nov 4 08:52:45 2001
protected V[] | _values - the values of the map
|
TDoubleObjectHashMap() - Creates a new
TDoubleObjectHashMap instance with the default
capacity and load factor.
|
TDoubleObjectHashMap(TDoubleHashingStrategy strategy) - Creates a new
TDoubleObjectHashMap instance with the default
capacity and load factor.
|
TDoubleObjectHashMap(int initialCapacity) - Creates a new
TDoubleObjectHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
|
TDoubleObjectHashMap(int initialCapacity, TDoubleHashingStrategy strategy) - Creates a new
TDoubleObjectHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
|
TDoubleObjectHashMap(int initialCapacity, float loadFactor) - Creates a new
TDoubleObjectHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
|
TDoubleObjectHashMap(int initialCapacity, float loadFactor, TDoubleHashingStrategy strategy) - Creates a new
TDoubleObjectHashMap instance with a prime
value at or near the specified capacity and load factor.
|
| T[] getValues(T[] a) - Return the values of the map; the runtime type of the returned array is that of
the specified array.
|
void | clear() - Empties the map.
|
TDoubleObjectHashMap | clone()
|
boolean | containsKey(double key) - checks for the present of key in the keys of the map.
|
boolean | containsValue(V val) - checks for the presence of val in the values of the map.
|
boolean | equals(Object other) - Compares this map with another map for equality of their stored
entries.
|
boolean | forEachEntry(TDoubleObjectProcedure 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(TObjectProcedure procedure) - Executes procedure for each value in the map.
|
V | get(double key) - retrieves the value for key
|
Object[] | getValues() - Returns the values of the map.
|
int | hashCode()
|
TDoubleObjectIterator | iterator()
|
double[] | keys() - returns the keys of the map.
|
V | put(double key, V value) - Inserts a key/value pair into the map.
|
void | readExternal(ObjectInput in)
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protected void | rehash(int newCapacity) - rehashes the map to the new capacity.
|
V | remove(double key) - Deletes a key/value pair from the map.
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protected void | removeAt(int index) - removes the mapping at index from the map.
|
boolean | retainEntries(TDoubleObjectProcedure 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.
|
void | transformValues(TObjectFunction function) - Transform the values in this map using function.
|
void | writeExternal(ObjectOutput out)
|
_values
protected V[] _values
the values of the map
TDoubleObjectHashMap
public TDoubleObjectHashMap()
Creates a new TDoubleObjectHashMap
instance with the default
capacity and load factor.
TDoubleObjectHashMap
public TDoubleObjectHashMap(TDoubleHashingStrategy strategy)
Creates a new TDoubleObjectHashMap
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.
TDoubleObjectHashMap
public TDoubleObjectHashMap(int initialCapacity)
Creates a new TDoubleObjectHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity
- an int
value
TDoubleObjectHashMap
public TDoubleObjectHashMap(int initialCapacity,
TDoubleHashingStrategy strategy)
Creates a new TDoubleObjectHashMap
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.
TDoubleObjectHashMap
public TDoubleObjectHashMap(int initialCapacity,
float loadFactor)
Creates a new TDoubleObjectHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity
- an int
valueloadFactor
- a float
value
TDoubleObjectHashMap
public TDoubleObjectHashMap(int initialCapacity,
float loadFactor,
TDoubleHashingStrategy strategy)
Creates a new TDoubleObjectHashMap
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.
T[] getValues
public T[] getValues(T[] a)
Return the values of the map; the runtime type of the returned array is that of
the specified array.
a
- the array into which the elements of this collection are to be
stored, if it is big enough; otherwise, a new array of the same
runtime type is allocated for this purpose.
- an array containing the elements of this collection
clear
public void clear()
Empties the map.
clone
public TDoubleObjectHashMap clone()
- a deep clone of this collection
containsKey
public boolean containsKey(double key)
checks for the present of key in the keys of the map.
containsValue
public boolean containsValue(V val)
checks for the presence of val in the values of the map.
equals
public boolean equals(Object other)
Compares this map with another map for equality of their stored
entries.
forEachEntry
public boolean forEachEntry(TDoubleObjectProcedure procedure)
Executes procedure for each key/value entry in the
map.
procedure
- a TODoubleObjectProcedure
value
- false if the loop over the entries terminated because
the procedure returned false for some entry.
forEachKey
public boolean forEachKey(TDoubleProcedure procedure)
Executes procedure for each key in the map.
procedure
- a TDoubleProcedure
value
- false if the loop over the keys terminated because
the procedure returned false for some key.
forEachValue
public boolean forEachValue(TObjectProcedure procedure)
Executes procedure for each value in the map.
procedure
- a TObjectProcedure
value
- false if the loop over the values terminated because
the procedure returned false for some value.
get
public V get(double key)
retrieves the value for key
- the value of key or (double)0 if no such mapping exists.
getValues
public Object[] getValues()
Returns the values of the map.
hashCode
public int hashCode()
iterator
public TDoubleObjectIterator iterator()
- a TDoubleObjectIterator with access to this map's keys and values
keys
public double[] keys()
returns the keys of the map.
put
public V put(double key,
V value)
Inserts a key/value pair into the map.
key
- an double
valuevalue
- an Object
value
- the previous value associated with key,
or (double)0 if none was found.
readExternal
public void readExternal(ObjectInput in)
throws IOException,
ClassNotFoundException
rehash
protected void rehash(int newCapacity)
rehashes the map to the new capacity.
newCapacity
- an int
value
remove
public V remove(double key)
Deletes a key/value pair from the map.
- an
Object
value or (double)0 if no such mapping exists.
removeAt
protected void removeAt(int index)
removes the mapping at index from the map.
retainEntries
public boolean retainEntries(TDoubleObjectProcedure procedure)
Retains only those entries in the map for which the procedure
returns a true value.
procedure
- determines which entries to keep
- true if the map was modified.
setUp
protected int setUp(int initialCapacity)
initializes the hashtable to a prime capacity which is at least
initialCapacity + 1.
initialCapacity
- an int
value
- the actual capacity chosen
transformValues
public void transformValues(TObjectFunction function)
Transform the values in this map using function.
function
- a TObjectFunction
value
writeExternal
public void writeExternal(ObjectOutput out)
throws IOException
GNU Trove is copyright B) 2001-2008 Eric D. Friedman. All Rights Reserved.