gnu.trove.set.hash

Class TIntHashSet

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TIntHash

gnu.trove.set.hash.TIntHashSet

All Implemented Interfaces:

TIntSet, TIntCollection, java.io.Externalizable, java.io.Serializable

public class TIntHashSet
extends TIntHash
implements TIntSet, java.io.Externalizable

An open addressed set implementation for int primitives.

See Also:

Serialized Form

Field Summary

Fields inherited from class gnu.trove.impl.hash.TIntHash

_set, consumeFreeSlot, no_entry_value

Fields inherited from class gnu.trove.impl.hash.TPrimitiveHash

_states, FREE, FULL, REMOVED

Fields inherited from class gnu.trove.impl.hash.THash

_autoCompactionFactor, _autoCompactRemovesRemaining, _autoCompactTemporaryDisable, _free, _loadFactor, _maxSize, _size, DEFAULT_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
TIntHashSet() Creates a new TIntHashSet instance with the default capacity and load factor.
TIntHashSet(java.util.Collection<? extends java.lang.Integer> collection) Creates a new TIntHashSet instance that is a copy of the existing Collection.
TIntHashSet(int initialCapacity) Creates a new TIntHashSet instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.
TIntHashSet(int[] array) Creates a new TIntHashSet instance containing the elements of array.
TIntHashSet(int initialCapacity, float load_factor) Creates a new TIntHash instance with a prime value at or near the specified capacity and load factor.
TIntHashSet(int initial_capacity, float load_factor, int no_entry_value) Creates a new TIntHashSet instance with a prime capacity equal to or greater than initial_capacity and with the specified load factor.
TIntHashSet(TIntCollection collection) Creates a new TIntHashSet instance that is a copy of the existing set.

Method Summary

Modifier and Type	Method and Description
boolean	add(int val) Inserts a value into the set.
boolean	addAll(java.util.Collection<? extends java.lang.Integer> collection) Adds all of the elements in collection to the set.
boolean	addAll(int[] array) Adds all of the elements in the array to the set.
boolean	addAll(TIntCollection collection) Adds all of the elements in the TIntCollection to the set.
void	clear() Empties the collection.
boolean	containsAll(java.util.Collection<?> collection) Tests the set to determine if all of the elements in collection are present.
boolean	containsAll(int[] array) Tests the set to determine if all of the elements in array are present.
boolean	containsAll(TIntCollection collection) Tests the set to determine if all of the elements in TIntCollection are present.
boolean	equals(java.lang.Object other) Compares the specified object with this set for equality.
int	hashCode() Returns the hash code value for this set.
TIntIterator	iterator() Creates an iterator over the values of the set.
void	readExternal(java.io.ObjectInput in)
protected void	rehash(int newCapacity) Rehashes the set.
boolean	remove(int val) Removes entry from the set.
boolean	removeAll(java.util.Collection<?> collection) Removes all of the elements in collection from the set.
boolean	removeAll(int[] array) Removes all of the elements in array from the set.
boolean	removeAll(TIntCollection collection) Removes all of the elements in TIntCollection from the set.
boolean	retainAll(java.util.Collection<?> collection) Removes any values in the set which are not contained in collection.
boolean	retainAll(int[] array) Removes any values in the set which are not contained in array.
boolean	retainAll(TIntCollection collection) Removes any values in the set which are not contained in TIntCollection.
int[]	toArray() Returns an array containing all of the elements in this set.
int[]	toArray(int[] dest) Returns an array containing elements in this set.
java.lang.String	toString()
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class gnu.trove.impl.hash.TIntHash

contains, forEach, getNoEntryValue, index, insertKey, removeAt, setUp

Methods inherited from class gnu.trove.impl.hash.TPrimitiveHash

capacity

Methods inherited from class gnu.trove.impl.hash.THash

calculateGrownCapacity, compact, computeMaxSize, computeNextAutoCompactionAmount, ensureCapacity, fastCeil, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, saturatedCast, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface gnu.trove.set.TIntSet

contains, forEach, getNoEntryValue, isEmpty, size

Constructor Detail

TIntHashSet

public TIntHashSet()

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

TIntHashSet

public TIntHashSet(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TIntHashSet

public TIntHashSet(int initialCapacity,
                   float load_factor)

Creates a new TIntHash 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.

load_factor - used to calculate the threshold over which rehashing takes place.

TIntHashSet

public TIntHashSet(int initial_capacity,
                   float load_factor,
                   int no_entry_value)

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

Parameters:

initial_capacity - an int value

load_factor - a float value

no_entry_value - a int value that represents null.

TIntHashSet

public TIntHashSet(java.util.Collection<? extends java.lang.Integer> collection)

Creates a new TIntHashSet instance that is a copy of the existing Collection.

Parameters:

collection - a Collection that will be duplicated.

TIntHashSet

public TIntHashSet(TIntCollection collection)

Creates a new TIntHashSet instance that is a copy of the existing set.

Parameters:

collection - a TIntSet that will be duplicated.

TIntHashSet

public TIntHashSet(int[] array)

Creates a new TIntHashSet instance containing the elements of array.

Parameters:

array - an array of int primitives

Method Detail

iterator

public TIntIterator iterator()

Creates an iterator over the values of the set. The iterator supports element deletion.

Specified by:

iterator in interface TIntSet

Specified by:

iterator in interface TIntCollection

Returns:

an TIntIterator value

toArray

public int[] toArray()

Returns an array containing all of the elements in this set. If this set makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.

The returned array will be "safe" in that no references to it are maintained by this set. (In other words, this method must allocate a new array even if this set is backed by an array). The caller is thus free to modify the returned array.

This method acts as bridge between array-based and collection-based APIs.

Specified by:

toArray in interface TIntSet

Specified by:

toArray in interface TIntCollection

Returns:

an array containing all the elements in this set

toArray

public int[] toArray(int[] dest)

Returns an array containing elements in this set.

If this set fits in the specified array with room to spare (i.e., the array has more elements than this set), the element in the array immediately following the end of the set is set to TIntSet.getNoEntryValue(). (This is useful in determining the length of this set only if the caller knows that this set does not contain any elements representing null.)

If the native array is smaller than the set size, the array will be filled with elements in Iterator order until it is full and exclude the remainder.

If this set makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.

Specified by:

toArray in interface TIntSet

Specified by:

toArray in interface TIntCollection

Parameters:

dest - the array into which the elements of this set are to be stored.

Returns:

an int[] containing all the elements in this set

add

public boolean add(int val)

Inserts a value into the set.

Specified by:

add in interface TIntSet

Specified by:

add in interface TIntCollection

Parameters:

val - a int value

Returns:

true if the set was modified by the add operation

remove

public boolean remove(int val)

Removes entry from the set.

Specified by:

remove in interface TIntSet

Specified by:

remove in interface TIntCollection

Parameters:

val - an int value

Returns:

true if the set was modified by the remove operation.

containsAll

public boolean containsAll(java.util.Collection<?> collection)

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

Specified by:

containsAll in interface TIntSet

Specified by:

containsAll in interface TIntCollection

Parameters:

collection - a Collection value

Returns:

true if all elements were present in the set.

containsAll

public boolean containsAll(TIntCollection collection)

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

Specified by:

containsAll in interface TIntSet

Specified by:

containsAll in interface TIntCollection

Parameters:

collection - a TIntCollection value

Returns:

true if all elements were present in the set.

containsAll

public boolean containsAll(int[] array)

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

Specified by:

containsAll in interface TIntSet

Specified by:

containsAll in interface TIntCollection

Parameters:

array - as array of int primitives.

Returns:

true if all elements were present in the set.

addAll

public boolean addAll(java.util.Collection<? extends java.lang.Integer> collection)

Adds all of the elements in collection to the set.

Specified by:

addAll in interface TIntSet

Specified by:

addAll in interface TIntCollection

Parameters:

collection - a Collection value

Returns:

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

addAll

public boolean addAll(TIntCollection collection)

Adds all of the elements in the TIntCollection to the set.

Specified by:

addAll in interface TIntSet

Specified by:

addAll in interface TIntCollection

Parameters:

collection - a TIntCollection value

Returns:

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

addAll

public boolean addAll(int[] array)

Adds all of the elements in the array to the set.

Specified by:

addAll in interface TIntSet

Specified by:

addAll in interface TIntCollection

Parameters:

array - a array of int primitives.

Returns:

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

retainAll

public boolean retainAll(java.util.Collection<?> collection)

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

Specified by:

retainAll in interface TIntSet

Specified by:

retainAll in interface TIntCollection

Parameters:

collection - a Collection value

Returns:

true if the set was modified by the retain all operation

retainAll

public boolean retainAll(TIntCollection collection)

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

Specified by:

retainAll in interface TIntSet

Specified by:

retainAll in interface TIntCollection

Parameters:

collection - a TIntCollection value

Returns:

true if the set was modified by the retain all operation

retainAll

public boolean retainAll(int[] array)

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

Specified by:

retainAll in interface TIntSet

Specified by:

retainAll in interface TIntCollection

Parameters:

array - an array of int primitives.

Returns:

true if the set was modified by the retain all operation

removeAll

public boolean removeAll(java.util.Collection<?> collection)

Removes all of the elements in collection from the set.

Specified by:

removeAll in interface TIntSet

Specified by:

removeAll in interface TIntCollection

Parameters:

collection - a Collection value

Returns:

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

removeAll

public boolean removeAll(TIntCollection collection)

Removes all of the elements in TIntCollection from the set.

Specified by:

removeAll in interface TIntSet

Specified by:

removeAll in interface TIntCollection

Parameters:

collection - a TIntCollection value

Returns:

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

removeAll

public boolean removeAll(int[] array)

Removes all of the elements in array from the set.

Specified by:

removeAll in interface TIntSet

Specified by:

removeAll in interface TIntCollection

Parameters:

array - an array of int primitives.

Returns:

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

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TIntSet

Specified by:

clear in interface TIntCollection

Overrides:

clear in class THash

rehash

protected void rehash(int newCapacity)

Rehashes the set.

Specified by:

rehash in class THash

Parameters:

newCapacity - an int value

equals

public boolean equals(java.lang.Object other)

Compares the specified object with this set for equality. Returns true if the specified object is also a set, the two sets have the same size, and every member of the specified set is contained in this set (or equivalently, every member of this set is contained in the specified set). This definition ensures that the equals method works properly across different implementations of the set interface.

Specified by:

equals in interface TIntSet

Specified by:

equals in interface TIntCollection

Overrides:

equals in class java.lang.Object

Parameters:

other - object to be compared for equality with this set

Returns:

true if the specified object is equal to this set

hashCode

public int hashCode()

Returns the hash code value for this set. The hash code of a set is defined to be the sum of the hash codes of the elements in the set. This ensures that s1.equals(s2) implies that s1.hashCode()==s2.hashCode() for any two sets s1 and s2, as required by the general contract of Object.hashCode().

Specified by:

hashCode in interface TIntSet

Specified by:

hashCode in interface TIntCollection

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code value for this set

See Also:

Object.equals(Object), Set.equals(Object)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

writeExternal

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

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class THash

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 THash

Throws:

java.io.IOException

java.lang.ClassNotFoundException