gnu.trove

Class TDoubleHashSet

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 1.11 2003/03/19 04:17:03 ericdf Exp $

Author: Eric D. Friedman

Nested Class Summary
classTDoubleHashSet.HashProcedure
Constructor Summary
TDoubleHashSet()
Creates a new TDoubleHashSet instance with the default capacity and load factor.
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(double[] array)
Creates a new TDoubleHashSet instance containing the elements of array.
TDoubleHashSet(TDoubleHashingStrategy strategy)
Creates a new TDoubleHash instance with the default 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(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(double[] array, TDoubleHashingStrategy strategy)
Creates a new TDoubleHashSet instance containing the elements of array.
Method Summary
booleanadd(double val)
Inserts a value into the set.
booleanaddAll(double[] array)
Adds all of the elements in array to the set.
voidclear()
Empties the set.
booleancontainsAll(double[] array)
Tests the set to determine if all of the elements in array are present.
booleanequals(Object other)
Compares this set with another set for equality of their stored entries.
inthashCode()
TDoubleIteratoriterator()
voidreadObject(ObjectInputStream stream)
protected voidrehash(int newCapacity)
Expands the set to accomodate new values.
booleanremove(double val)
Removes val from the set.
booleanremoveAll(double[] array)
Removes all of the elements in array from the set.
booleanretainAll(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.
voidwriteObject(ObjectOutputStream stream)

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

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

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.

clear

public void clear()
Empties the set.

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.

equals

public boolean equals(Object other)
Compares this set with another set for equality of their stored entries.

Parameters: other an Object value

Returns: a boolean value

hashCode

public int hashCode()

iterator

public TDoubleIterator iterator()

Returns: a TDoubleIterator with access to the values in this set

readObject

private void readObject(ObjectInputStream stream)

rehash

protected void rehash(int newCapacity)
Expands the set to accomodate new values.

Parameters: newCapacity an int 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.

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

toArray

public double[] toArray()
Returns a new array containing the values in the set.

Returns: an double[] value

writeObject

private void writeObject(ObjectOutputStream stream)