gnu.trove
Class TShortObjectHashMap<V>
TShortHash
gnu.trove.TShortObjectHashMap<V>
- Externalizable
public class TShortObjectHashMap<V>
extends TShortHash
implements Externalizable
An open addressed Map implementation for short keys and Object values.
Created: Sun Nov 4 08:52:45 2001
protected V[] | _values - the values of the map
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TShortObjectHashMap() - Creates a new
TShortObjectHashMap instance with the default
capacity and load factor.
|
TShortObjectHashMap(TShortHashingStrategy strategy) - Creates a new
TShortObjectHashMap instance with the default
capacity and load factor.
|
TShortObjectHashMap(int initialCapacity) - Creates a new
TShortObjectHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
|
TShortObjectHashMap(int initialCapacity, TShortHashingStrategy strategy) - Creates a new
TShortObjectHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
|
TShortObjectHashMap(int initialCapacity, float loadFactor) - Creates a new
TShortObjectHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
|
TShortObjectHashMap(int initialCapacity, float loadFactor, TShortHashingStrategy strategy) - Creates a new
TShortObjectHashMap 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.
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TShortObjectHashMap | clone()
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boolean | containsKey(short 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(TShortObjectProcedure 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(TObjectProcedure procedure) - Executes procedure for each value in the map.
|
V | get(short key) - retrieves the value for key
|
Object[] | getValues() - Returns the values of the map.
|
int | hashCode()
|
TShortObjectIterator | iterator()
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short[] | keys() - returns the keys of the map.
|
V | put(short key, V value) - Inserts a key/value pair into the map.
|
V | putIfAbsent(short key, V value) - Inserts a key/value pair into the map if the specified key is not already
associated with a value.
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void | readExternal(ObjectInput in)
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protected void | rehash(int newCapacity) - rehashes the map to the new capacity.
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V | remove(short 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.
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boolean | retainEntries(TShortObjectProcedure 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.
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void | transformValues(TObjectFunction function) - Transform the values in this map using function.
|
void | writeExternal(ObjectOutput out)
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_values
protected V[] _values
the values of the map
TShortObjectHashMap
public TShortObjectHashMap()
Creates a new TShortObjectHashMap
instance with the default
capacity and load factor.
TShortObjectHashMap
public TShortObjectHashMap(TShortHashingStrategy strategy)
Creates a new TShortObjectHashMap
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.
TShortObjectHashMap
public TShortObjectHashMap(int initialCapacity)
Creates a new TShortObjectHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity
- an int
value
TShortObjectHashMap
public TShortObjectHashMap(int initialCapacity,
TShortHashingStrategy strategy)
Creates a new TShortObjectHashMap
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.
TShortObjectHashMap
public TShortObjectHashMap(int initialCapacity,
float loadFactor)
Creates a new TShortObjectHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity
- an int
valueloadFactor
- a float
value
TShortObjectHashMap
public TShortObjectHashMap(int initialCapacity,
float loadFactor,
TShortHashingStrategy strategy)
Creates a new TShortObjectHashMap
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 TShortObjectHashMap clone()
- a deep clone of this collection
containsKey
public boolean containsKey(short 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(TShortObjectProcedure procedure)
Executes procedure for each key/value entry in the
map.
procedure
- a TOShortObjectProcedure
value
- false if the loop over the entries terminated because
the procedure returned false for some entry.
forEachKey
public boolean forEachKey(TShortProcedure procedure)
Executes procedure for each key in the map.
procedure
- a TShortProcedure
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(short key)
retrieves the value for key
- the value of key or (short)0 if no such mapping exists.
getValues
public Object[] getValues()
Returns the values of the map.
hashCode
public int hashCode()
iterator
public TShortObjectIterator iterator()
- a TShortObjectIterator with access to this map's keys and values
keys
public short[] keys()
returns the keys of the map.
put
public V put(short key,
V value)
Inserts a key/value pair into the map.
key
- an short
valuevalue
- an Object
value
- the previous value associated with key,
or
null
if none was found.
putIfAbsent
public V putIfAbsent(short key,
V value)
Inserts a key/value pair into the map if the specified key is not already
associated with a value.
key
- an short
valuevalue
- an Object
value
- the previous value associated with key,
or
null
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(short key)
Deletes a key/value pair from the map.
- an
Object
value or (short)0 if no such mapping exists.
removeAt
protected void removeAt(int index)
removes the mapping at index from the map.
retainEntries
public boolean retainEntries(TShortObjectProcedure 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.