org.elasticsearch.util.gnu.trove
Class TObjectDoubleHashMap<K>

java.lang.Object
  org.elasticsearch.util.gnu.trove.THash
      org.elasticsearch.util.gnu.trove.TObjectHash<K>
          org.elasticsearch.util.gnu.trove.TObjectDoubleHashMap<K>

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, TObjectHashingStrategy<K>

public class TObjectDoubleHashMap<K>
extends TObjectHash<K>
implements java.io.Externalizable

An open addressed Map implementation for Object keys and double values.

Created: Sun Nov 4 08:52:45 2001

See Also:

Serialized Form

Field Summary

protected double[]

_values the values of the map

Fields inherited from class org.elasticsearch.util.gnu.trove.TObjectHash

_hashingStrategy, _set, FREE, REMOVED

Fields inherited from class org.elasticsearch.util.gnu.trove.THash

_autoCompactionFactor, _autoCompactRemovesRemaining, _free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

TObjectDoubleHashMap()
Creates a new TObjectDoubleHashMap instance with the default capacity and load factor.

TObjectDoubleHashMap(int initialCapacity)
Creates a new TObjectDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.

TObjectDoubleHashMap(int initialCapacity, float loadFactor)
Creates a new TObjectDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

TObjectDoubleHashMap(int initialCapacity, float loadFactor, TObjectHashingStrategy<K> strategy)
Creates a new TObjectDoubleHashMap instance with a prime value at or near the specified capacity and load factor.

TObjectDoubleHashMap(int initialCapacity, TObjectHashingStrategy<K> strategy)
Creates a new TObjectDoubleHashMap instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.

TObjectDoubleHashMap(TObjectHashingStrategy<K> strategy)
Creates a new TObjectDoubleHashMap instance with the default capacity and load factor.

Method Summary

double	adjustOrPutValue(K key, double adjust_amount, double put_amount) Adjusts the primitive value mapped to the key if the key is present in the map.
boolean	adjustValue(K key, double amount) Adjusts the primitive value mapped to key.
void	clear() Empties the map.
TObjectDoubleHashMap<K>	clone()
boolean	containsKey(K key) checks for the present of key in the keys of the map.
boolean	containsValue(double 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(TObjectDoubleProcedure<K> procedure) Executes procedure for each key/value entry in the map.
boolean	forEachKey(TObjectProcedure<K> procedure) Executes procedure for each key in the map.
boolean	forEachValue(TDoubleProcedure procedure) Executes procedure for each value in the map.
double	get(K key) retrieves the value for key
double[]	getValues() Returns the values of the map.
boolean	increment(K key) Increments the primitive value mapped to key by 1
TObjectDoubleIterator<K>	iterator()
java.lang.Object[]	keys() returns the keys of the map.
K[]	keys(K[] a) returns the keys of the map.
double	put(K key, double value) Inserts a key/value pair into the map.
void	putAll(TObjectDoubleHashMap<K> map) Put all the entries from the given map into this map.
double	putIfAbsent(K key, double 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.
double	remove(K key) Deletes a key/value pair from the map.
protected void	removeAt(int index) removes the mapping at index from the map.
boolean	retainEntries(TObjectDoubleProcedure<K> 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(TDoubleFunction function) Transform the values in this map using function.
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class org.elasticsearch.util.gnu.trove.TObjectHash

capacity, computeHashCode, contains, equals, forEach, index, insertionIndex, throwObjectContractViolation

Methods inherited from class org.elasticsearch.util.gnu.trove.THash

calculateGrownCapacity, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

_values

protected transient double[] _values

the values of the map

Constructor Detail

TObjectDoubleHashMap

public TObjectDoubleHashMap()

Creates a new TObjectDoubleHashMap instance with the default capacity and load factor.

TObjectDoubleHashMap

public TObjectDoubleHashMap(int initialCapacity)

Creates a new TObjectDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.

Parameters:

initialCapacity - an int value

TObjectDoubleHashMap

public TObjectDoubleHashMap(int initialCapacity,
                            float loadFactor)

Creates a new TObjectDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

Parameters:

initialCapacity - an int value

loadFactor - a float value

TObjectDoubleHashMap

public TObjectDoubleHashMap(TObjectHashingStrategy<K> strategy)

Creates a new TObjectDoubleHashMap instance with the default capacity and load factor.

Parameters:

strategy - used to compute hash codes and to compare keys.

TObjectDoubleHashMap

public TObjectDoubleHashMap(int initialCapacity,
                            TObjectHashingStrategy<K> strategy)

Creates a new TObjectDoubleHashMap instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.

Parameters:

initialCapacity - an int value

strategy - used to compute hash codes and to compare keys.

TObjectDoubleHashMap

public TObjectDoubleHashMap(int initialCapacity,
                            float loadFactor,
                            TObjectHashingStrategy<K> strategy)

Creates a new TObjectDoubleHashMap instance with a prime value at or near the specified capacity and load factor.

Parameters:

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

iterator

public TObjectDoubleIterator<K> iterator()

Returns:

an iterator over the entries in this map

setUp

protected int setUp(int initialCapacity)

initializes the hashtable to a prime capacity which is at least initialCapacity + 1.

Overrides:

setUp in class TObjectHash<K>

Parameters:

initialCapacity - an int value

Returns:

the actual capacity chosen

put

public double put(K key,
                  double value)

Inserts a key/value pair into the map.

Parameters:

key - an Object value

value - an double value

Returns:

the previous value associated with key, or (double)0 if none was found.

putIfAbsent

public double putIfAbsent(K key,
                          double value)

Inserts a key/value pair into the map if the specified key is not already associated with a value.

Parameters:

key - an Object value

value - an double value

Returns:

the previous value associated with key, or (double)0 if none was found.

putAll

public void putAll(TObjectDoubleHashMap<K> map)

Put all the entries from the given map into this map.

Parameters:

map - The map from which entries will be obtained to put into this map.

rehash

protected void rehash(int newCapacity)

rehashes the map to the new capacity.

Specified by:

rehash in class THash

Parameters:

newCapacity - an int value

get

public double get(K key)

retrieves the value for key

Parameters:

key - an Object value

Returns:

the value of key or (double)0 if no such mapping exists.

clear

public void clear()

Empties the map.

Overrides:

clear in class THash

remove

public double remove(K key)

Deletes a key/value pair from the map.

Parameters:

key - an Object value

Returns:

an double value or (double)0 if no such mapping exists.

equals

public boolean equals(java.lang.Object other)

Compares this map with another map for equality of their stored entries.

Overrides:

equals in class java.lang.Object

Parameters:

other - an Object value

Returns:

a boolean value

clone

public TObjectDoubleHashMap<K> clone()

Overrides:

clone in class TObjectHash<K>

Returns:

a shallow clone of this collection

removeAt

protected void removeAt(int index)

removes the mapping at index from the map.

Overrides:

removeAt in class TObjectHash<K>

Parameters:

index - an int value

getValues

public double[] getValues()

Returns the values of the map.

Returns:

a Collection value

keys

public java.lang.Object[] keys()

returns the keys of the map.

Returns:

a Set value

keys

public K[] keys(K[] a)

returns the keys of the map.

Parameters:

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 runtime type is allocated for this purpose.

Returns:

a Set value

containsValue

public boolean containsValue(double val)

checks for the presence of val in the values of the map.

Parameters:

val - an double value

Returns:

a boolean value

containsKey

public boolean containsKey(K key)

checks for the present of key in the keys of the map.

Parameters:

key - an Object value

Returns:

a boolean value

forEachKey

public boolean forEachKey(TObjectProcedure<K> procedure)

Executes procedure for each key in the map.

Parameters:

procedure - a TObjectProcedure value

Returns:

false if the loop over the keys terminated because the procedure returned false for some key.

forEachValue

public boolean forEachValue(TDoubleProcedure procedure)

Executes procedure for each value in the map.

Parameters:

procedure - a TDoubleProcedure value

Returns:

false if the loop over the values terminated because the procedure returned false for some value.

forEachEntry

public boolean forEachEntry(TObjectDoubleProcedure<K> procedure)

Executes procedure for each key/value entry in the map.

Parameters:

procedure - a TOObjectDoubleProcedure value

Returns:

false if the loop over the entries terminated because the procedure returned false for some entry.

retainEntries

public boolean retainEntries(TObjectDoubleProcedure<K> procedure)

Retains only those entries in the map for which the procedure returns a true value.

Parameters:

procedure - determines which entries to keep

Returns:

true if the map was modified.

transformValues

public void transformValues(TDoubleFunction function)

Transform the values in this map using function.

Parameters:

function - a TDoubleFunction value

increment

public boolean increment(K key)

Increments the primitive value mapped to key by 1

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

public boolean adjustValue(K key,
                           double amount)

Adjusts the primitive value mapped to key.

Parameters:

key - the key of the value to increment

amount - the amount to adjust the value by.

Returns:

true if a mapping was found and modified.

adjustOrPutValue

public double adjustOrPutValue(K key,
                               double adjust_amount,
                               double put_amount)

Adjusts the primitive value mapped to the key if the key is present in the map. Otherwise, the initial_value is put in the map.

Parameters:

key - the key of the value to increment

adjust_amount - the amount to adjust the value by

put_amount - the value put into the map if the key is not initial present

Returns:

the value present in the map after the adjustment or put operation

Since:

2.0b1

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class TObjectHash<K>

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class TObjectHash<K>

Throws:

java.io.IOException

java.lang.ClassNotFoundException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object