gnu.trove.set.hash
Class TLongHashSet

java.lang.Object
  gnu.trove.impl.hash.THash
      gnu.trove.impl.hash.TPrimitiveHash
          gnu.trove.impl.hash.TLongHash
              gnu.trove.set.hash.TLongHashSet

All Implemented Interfaces:

TLongSet, TLongCollection, java.io.Externalizable, java.io.Serializable

public class TLongHashSet
extends TLongHash
implements TLongSet, java.io.Externalizable

An open addressed set implementation for long primitives.

Author:

Eric D. Friedman, Rob Eden, Jeff Randall

See Also:

Serialized Form

Field Summary

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

_set, 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

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

TLongHashSet(java.util.Collection<? extends java.lang.Long> collection)
Creates a new TLongHashSet instance that is a copy of the existing Collection.

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

TLongHashSet(int initialCapacity, float load_factor)
Creates a new TIntHash instance with a prime value at or near the specified capacity and load factor.

TLongHashSet(int initial_capacity, float load_factor, long no_entry_value)
Creates a new TLongHashSet instance with a prime capacity equal to or greater than initial_capacity and with the specified load factor.

TLongHashSet(long[] array)
Creates a new TLongHashSet instance containing the elements of array.

TLongHashSet(TLongCollection collection)
Creates a new TLongHashSet instance that is a copy of the existing set.

Method Summary

boolean	add(long val) Inserts a value into the set.
boolean	addAll(java.util.Collection<? extends java.lang.Long> collection) Adds all of the elements in collection to the set.
boolean	addAll(long[] array) Adds all of the elements in the array to the set.
boolean	addAll(TLongCollection collection) Adds all of the elements in the TLongCollection 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(long[] array) Tests the set to determine if all of the elements in array are present.
boolean	containsAll(TLongCollection collection) Tests the set to determine if all of the elements in TLongCollection 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.
TLongIterator	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(long val) Removes entry from the set.
boolean	removeAll(java.util.Collection<?> collection) Removes all of the elements in collection from the set.
boolean	removeAll(long[] array) Removes all of the elements in array from the set.
boolean	removeAll(TLongCollection collection) Removes all of the elements in TLongCollection from the set.
boolean	retainAll(java.util.Collection<?> collection) Removes any values in the set which are not contained in collection.
boolean	retainAll(long[] array) Removes any values in the set which are not contained in array.
boolean	retainAll(TLongCollection collection) Removes any values in the set which are not contained in TLongCollection.
long[]	toArray() Returns an array containing all of the elements in this set.
long[]	toArray(long[] 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.TLongHash

contains, forEach, getNoEntryValue, index, insertionIndex, 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, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, 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.TLongSet

contains, forEach, getNoEntryValue, isEmpty, size

Constructor Detail

TLongHashSet

public TLongHashSet()

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

TLongHashSet

public TLongHashSet(java.util.Collection<? extends java.lang.Long> collection)

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

Parameters:

collection - a Collection that will be duplicated.

TLongHashSet

public TLongHashSet(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TLongHashSet

public TLongHashSet(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.

TLongHashSet

public TLongHashSet(int initial_capacity,
                    float load_factor,
                    long no_entry_value)

Creates a new TLongHashSet 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 long value that represents null.

TLongHashSet

public TLongHashSet(long[] array)

Creates a new TLongHashSet instance containing the elements of array.

Parameters:

array - an array of long primitives

TLongHashSet

public TLongHashSet(TLongCollection collection)

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

Parameters:

collection - a TLongSet that will be duplicated.

Method Detail

add

public boolean add(long val)

Inserts a value into the set.

Specified by:

add in interface TLongSet

Specified by:

add in interface TLongCollection

Parameters:

val - a long value

Returns:

true if the set was modified by the add operation

addAll

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

Adds all of the elements in collection to the set.

Specified by:

addAll in interface TLongSet

Specified by:

addAll in interface TLongCollection

Parameters:

collection - a Collection value

Returns:

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

addAll

public boolean addAll(long[] array)

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

Specified by:

addAll in interface TLongSet

Specified by:

addAll in interface TLongCollection

Parameters:

array - a array of long primitives.

Returns:

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

addAll

public boolean addAll(TLongCollection collection)

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

Specified by:

addAll in interface TLongSet

Specified by:

addAll in interface TLongCollection

Parameters:

collection - a TLongCollection value

Returns:

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

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TLongSet

Specified by:

clear in interface TLongCollection

Overrides:

clear in class THash

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 TLongSet

Specified by:

containsAll in interface TLongCollection

Parameters:

collection - a Collection value

Returns:

true if all elements were present in the set.

containsAll

public boolean containsAll(long[] array)

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

Specified by:

containsAll in interface TLongSet

Specified by:

containsAll in interface TLongCollection

Parameters:

array - as array of long primitives.

Returns:

true if all elements were present in the set.

containsAll

public boolean containsAll(TLongCollection collection)

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

Specified by:

containsAll in interface TLongSet

Specified by:

containsAll in interface TLongCollection

Parameters:

collection - a TLongCollection value

Returns:

true if all elements were present in the set.

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 TLongSet

Specified by:

equals in interface TLongCollection

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 TLongSet

Specified by:

hashCode in interface TLongCollection

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code value for this set

See Also:

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

iterator

public TLongIterator iterator()

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

Specified by:

iterator in interface TLongSet

Specified by:

iterator in interface TLongCollection

Returns:

an TLongIterator value

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

rehash

protected void rehash(int newCapacity)

Rehashes the set.

Specified by:

rehash in class THash

Parameters:

newCapacity - an int value

remove

public boolean remove(long val)

Removes entry from the set.

Specified by:

remove in interface TLongSet

Specified by:

remove in interface TLongCollection

Parameters:

val - an long value

Returns:

true if the set was modified by the remove operation.

removeAll

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

Removes all of the elements in collection from the set.

Specified by:

removeAll in interface TLongSet

Specified by:

removeAll in interface TLongCollection

Parameters:

collection - a Collection value

Returns:

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

removeAll

public boolean removeAll(long[] array)

Removes all of the elements in array from the set.

Specified by:

removeAll in interface TLongSet

Specified by:

removeAll in interface TLongCollection

Parameters:

array - an array of long primitives.

Returns:

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

removeAll

public boolean removeAll(TLongCollection collection)

Removes all of the elements in TLongCollection from the set.

Specified by:

removeAll in interface TLongSet

Specified by:

removeAll in interface TLongCollection

Parameters:

collection - a TLongCollection value

Returns:

true if the set was modified by the remove 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 TLongSet

Specified by:

retainAll in interface TLongCollection

Parameters:

collection - a Collection value

Returns:

true if the set was modified by the retain all operation

retainAll

public boolean retainAll(long[] array)

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

Specified by:

retainAll in interface TLongSet

Specified by:

retainAll in interface TLongCollection

Parameters:

array - an array of long primitives.

Returns:

true if the set was modified by the retain all operation

retainAll

public boolean retainAll(TLongCollection collection)

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

Specified by:

retainAll in interface TLongSet

Specified by:

retainAll in interface TLongCollection

Parameters:

collection - a TLongCollection value

Returns:

true if the set was modified by the retain all operation

toArray

public long[] 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 TLongSet

Specified by:

toArray in interface TLongCollection

Returns:

an array containing all the elements in this set

toArray

public long[] toArray(long[] 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 TLongSet.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 TLongSet

Specified by:

toArray in interface TLongCollection

Parameters:

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

Returns:

an long[] containing all the elements in this set

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