gnu.trove

Class TDoubleHashSet

java.lang.Object

gnu.trove.THash

gnu.trove.TPrimitiveHash

gnu.trove.TDoubleHash

gnu.trove.TDoubleHashSet

All Implemented Interfaces:

TDoubleHashingStrategy, Serializable, Cloneable

public class TDoubleHashSet
extends TDoubleHash
implements Serializable

An open addressed set implementation for double primitives. Created: Sat Nov 3 10:38:17 2001

Version:

$Id: TDoubleHashSet.java,v 1.3 2004/11/24 20:00:00 casutton Exp $

Author:

Eric D. Friedman

See Also:

Serialized Form

Field Summary

Fields inherited from class gnu.trove.TDoubleHash

_set

Fields inherited from class gnu.trove.TPrimitiveHash

_states, FREE, FULL, REMOVED

Fields inherited from class gnu.trove.THash

_free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
TDoubleHashSet() Creates a new TDoubleHashSet instance with the default capacity and load factor.
TDoubleHashSet(double[] array) Creates a new TDoubleHashSet instance containing the elements of array.
TDoubleHashSet(double[] array, TDoubleHashingStrategy strategy) Creates a new TDoubleHashSet instance containing the elements of array.
TDoubleHashSet(int initialCapacity) Creates a new TDoubleHashSet instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.
TDoubleHashSet(int initialCapacity, float loadFactor) Creates a new TDoubleHashSet instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.
TDoubleHashSet(int initialCapacity, float loadFactor, TDoubleHashingStrategy strategy) Creates a new TDoubleHash instance with a prime value at or near the specified capacity and load factor.
TDoubleHashSet(int initialCapacity, TDoubleHashingStrategy strategy) Creates a new TDoubleHash instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.
TDoubleHashSet(TDoubleHashingStrategy strategy) Creates a new TDoubleHash instance with the default capacity and load factor.

Method Summary

Modifier and Type	Method and Description
boolean	add(double val) Inserts a value into the set.
boolean	addAll(double[] array) Adds all of the elements in array to the set.
void	clear() Empties the set.
boolean	containsAll(double[] array) Tests the set to determine if all of the elements in array are present.
boolean	equals(Object other) Compares this set with another set for equality of their stored entries.
TDoubleIterator	iterator()
protected void	rehash(int newCapacity) Expands the set to accomodate new values.
boolean	remove(double val) Removes val from the set.
boolean	removeAll(double[] array) Removes all of the elements in array from the set.
boolean	retainAll(double[] array) Removes any values in the set which are not contained in array.
double[]	toArray() Returns a new array containing the values in the set.

Methods inherited from class gnu.trove.TDoubleHash

clone, computeHashCode, contains, forEach, index, insertionIndex, removeAt, setUp

Methods inherited from class gnu.trove.TPrimitiveHash

capacity

Methods inherited from class gnu.trove.THash

compact, ensureCapacity, isEmpty, postInsertHook, size, trimToSize

Methods inherited from class java.lang.Object

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

Constructor Detail

TDoubleHashSet

public TDoubleHashSet()

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

TDoubleHashSet

public TDoubleHashSet(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TDoubleHashSet

public TDoubleHashSet(int initialCapacity,
                      float loadFactor)

Creates a new TDoubleHashSet 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

TDoubleHashSet

public TDoubleHashSet(double[] array)

Creates a new TDoubleHashSet instance containing the elements of array.

Parameters:

array - an array of double primitives

TDoubleHashSet

public TDoubleHashSet(TDoubleHashingStrategy strategy)

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

Parameters:

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

TDoubleHashSet

public TDoubleHashSet(int initialCapacity,
                      TDoubleHashingStrategy strategy)

Creates a new TDoubleHash 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.

TDoubleHashSet

public TDoubleHashSet(int initialCapacity,
                      float loadFactor,
                      TDoubleHashingStrategy strategy)

Creates a new TDoubleHash 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.

TDoubleHashSet

public TDoubleHashSet(double[] array,
                      TDoubleHashingStrategy strategy)

Creates a new TDoubleHashSet instance containing the elements of array.

Parameters:

array - an array of double primitives

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

Method Detail

iterator

public TDoubleIterator iterator()

Returns:

a TDoubleIterator with access to the values in this set

add

public boolean add(double val)

Inserts a value into the set.

Parameters:

val - an double value

Returns:

true if the set was modified by the add operation

rehash

protected void rehash(int newCapacity)

Expands the set to accomodate new values.

Specified by:

rehash in class THash

Parameters:

newCapacity - an int value

toArray

public double[] toArray()

Returns a new array containing the values in the set.

Returns:

an double[] value

clear

public void clear()

Empties the set.

Overrides:

clear in class THash

equals

public boolean equals(Object other)

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

Overrides:

equals in class Object

Parameters:

other - an Object value

Returns:

a boolean value

remove

public boolean remove(double val)

Removes val from the set.

Parameters:

val - an double value

Returns:

true if the set was modified by the remove operation.

containsAll

public boolean containsAll(double[] array)

Tests the set to determine if all of the elements in array are present.

Parameters:

array - an array of double primitives.

Returns:

true if all elements were present in the set.

addAll

public boolean addAll(double[] array)

Adds all of the elements in array to the set.

Parameters:

array - an array of double primitives.

Returns:

true if the set was modified by the add all operation.

removeAll

public boolean removeAll(double[] array)

Removes all of the elements in array from the set.

Parameters:

array - an array of double primitives.

Returns:

true if the set was modified by the remove all operation.

retainAll

public boolean retainAll(double[] array)

Removes any values in the set which are not contained in array.

Parameters:

array - an array of double primitives.

Returns:

true if the set was modified by the retain all operation