gnu.trove.map.hash
Class TIntIntHashMap.TKeyView

java.lang.Object
  gnu.trove.map.hash.TIntIntHashMap.TKeyView

All Implemented Interfaces:

TIntSet, TIntCollection, java.io.Serializable

Enclosing class:

TIntIntHashMap

protected class TIntIntHashMap.TKeyView
extends java.lang.Object
implements TIntSet

a view onto the keys of the map.

See Also:

Serialized Form

Constructor Summary

protected

TIntIntHashMap.TKeyView()

Method Summary

boolean	add(int entry) Unsupported when operating upon a Key Set view of a TIntIntMap Inserts a value into the set.
boolean	addAll(java.util.Collection<? extends java.lang.Integer> collection) Unsupported when operating upon a Key Set view of a TIntIntMap Adds all of the elements in collection to the set.
boolean	addAll(int[] array) Unsupported when operating upon a Key Set view of a TIntIntMap Adds all of the elements in the array to the set.
boolean	addAll(TIntCollection collection) Unsupported when operating upon a Key Set view of a TIntIntMap Adds all of the elements in the TIntCollection to the set.
void	clear() Empties the set.
boolean	contains(int entry) Returns true if this set contains the specified element.
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.
boolean	forEach(TIntProcedure procedure) Executes procedure for each element in the set.
int	getNoEntryValue() Returns the value that is used to represent null.
int	hashCode() Returns the hash code value for this set.
boolean	isEmpty() Returns true if this set contains no elements.
TIntIterator	iterator() Creates an iterator over the values of the set.
boolean	remove(int entry) 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	size() Returns the number of elements in this set (its cardinality).
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()

Methods inherited from class java.lang.Object

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

Constructor Detail

TIntIntHashMap.TKeyView

protected TIntIntHashMap.TKeyView()

Method Detail

add

public boolean add(int entry)

Unsupported when operating upon a Key Set view of a TIntIntMap

Inserts a value into the set.

Specified by:

add in interface TIntSet

Specified by:

add in interface TIntCollection

Parameters:

entry - a int value

Returns:

true if the set was modified by the add operation

addAll

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

Unsupported when operating upon a Key Set view of a TIntIntMap

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(int[] array)

Unsupported when operating upon a Key Set view of a TIntIntMap

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.

addAll

public boolean addAll(TIntCollection collection)

Unsupported when operating upon a Key Set view of a TIntIntMap

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.

clear

public void clear()

Empties the set.

Specified by:

clear in interface TIntSet

Specified by:

clear in interface TIntCollection

contains

public boolean contains(int entry)

Returns true if this set contains the specified element.

Specified by:

contains in interface TIntSet

Specified by:

contains in interface TIntCollection

Parameters:

entry - an int value

Returns:

true if the set contains the specified element.

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(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.

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.

equals

public boolean equals(java.lang.Object other)

Description copied from interface: TIntSet

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

forEach

public boolean forEach(TIntProcedure procedure)

Executes procedure for each element in the set.

Specified by:

forEach in interface TIntSet

Specified by:

forEach in interface TIntCollection

Parameters:

procedure - a TIntProcedure value

Returns:

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

getNoEntryValue

public int getNoEntryValue()

Returns the value that is used to represent null. The default value is generally zero, but can be changed during construction of the collection.

Specified by:

getNoEntryValue in interface TIntSet

Specified by:

getNoEntryValue in interface TIntCollection

Returns:

the value that represents null

hashCode

public int hashCode()

Description copied from interface: TIntSet

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)

isEmpty

public boolean isEmpty()

Returns true if this set contains no elements.

Specified by:

isEmpty in interface TIntSet

Specified by:

isEmpty in interface TIntCollection

Returns:

true if this set contains no elements

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

remove

public boolean remove(int entry)

Removes entry from the set.

Specified by:

remove in interface TIntSet

Specified by:

remove in interface TIntCollection

Parameters:

entry - an int 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 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(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.

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.

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(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

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

size

public int size()

Returns the number of elements in this set (its cardinality). If this set contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

Specified by:

size in interface TIntSet

Specified by:

size in interface TIntCollection

Returns:

the number of elements in this set (its cardinality)

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

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object