Package com.github.tommyettinger.ds

Class EnumMap.Keys

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<Enum<?>>

com.github.tommyettinger.ds.EnumMap.Keys

All Implemented Interfaces:

EnhancedCollection<Enum<?>>, Iterable<Enum<?>>, Collection<Enum<?>>, Set<Enum<?>>

Direct Known Subclasses:

EnumOrderedMap.OrderedMapKeys

Enclosing class:

EnumMap<V>

public static class EnumMap.Keys
extends AbstractSet<Enum<?>>
implements EnhancedCollection<Enum<?>>

Field Summary

Fields

Modifier and Type	Field	Description
protected EnumMap.MapIterator<?,Enum<?>>	iter

Constructor Summary

Constructors

Constructor	Description
Keys(EnumMap<?> map)

Method Summary

Modifier and Type	Method	Description
Collection<Enum<?>>	appendInto(Collection<Enum<?>> coll)	Append the remaining items that this can iterate through into the given Collection.
void	clear()
boolean	contains(Object o)
boolean	equals(Object other)
int	hashCode()
EnumMap.MapIterator<?,Enum<?>>	iterator()	Returns an iterator over the elements contained in this collection.
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)	Removes from this set all of its elements that are contained in the specified collection (optional operation).
void	resetIterator()	The iterator is reused by this data structure, and you can reset it back to the start of the iteration order using this.
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] a)
EnumSet	toEnumSet()	Returns a new EnumSet containing the remaining items.
ObjectList<Enum<?>>	toList()	Returns a new ObjectList containing the remaining items.
String	toString()

Methods inherited from class java.util.AbstractCollection

add, addAll, containsAll, isEmpty, retainAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface com.github.tommyettinger.ds.EnhancedCollection

add, add, add, addAll, addAll, addAll, addAllIterable, addLegible, addLegible, addVarargs, appendTo, appendTo, containsAll, containsAll, containsAll, containsAllIterable, containsAny, containsAny, containsAny, containsAnyIterable, first, removeAll, removeAll, removeAll, removeAllIterable, removeEach, removeEach, removeEach, removeEachIterable, toString, toString, toString

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

add, addAll, containsAll, isEmpty, retainAll, spliterator

Field Details

iter

protected EnumMap.MapIterator<?,Enum<?>> iter

Constructor Details

Keys

public Keys(EnumMap<?> map)

Method Details

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<Enum<?>>

Specified by:

contains in interface Set<Enum<?>>

Overrides:

contains in class AbstractCollection<Enum<?>>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<Enum<?>>

Specified by:

remove in interface Set<Enum<?>>

Overrides:

remove in class AbstractCollection<Enum<?>>

Parameters:

o - the item to try to remove

Returns:

true if this map was modified (meaning the item was removed successfully); false otherwise

removeAll

public boolean removeAll(Collection<?> c)

Removes from this set all of its elements that are contained in the specified collection (optional operation). If the specified collection is also a set, this operation effectively modifies this set so that its value is the asymmetric set difference of the two sets.

Specified by:

removeAll in interface Collection<Enum<?>>

Specified by:

removeAll in interface Set<Enum<?>>

Overrides:

removeAll in class AbstractSet<Enum<?>>

Parameters:

c - collection containing elements to be removed from this set

Returns:

true if this set changed as a result of the call

iterator

public EnumMap.MapIterator<?,Enum<?>> iterator()

Returns an iterator over the elements contained in this collection.

Specified by:

iterator in interface Collection<Enum<?>>

Specified by:

iterator in interface Iterable<Enum<?>>

Specified by:

iterator in interface Set<Enum<?>>

Specified by:

iterator in class AbstractCollection<Enum<?>>

Returns:

an iterator over the elements contained in this collection

clear

public void clear()

Specified by:

clear in interface Collection<Enum<?>>

Specified by:

clear in interface Set<Enum<?>>

Overrides:

clear in class AbstractCollection<Enum<?>>

toString

public String toString()

Overrides:

toString in class AbstractCollection<Enum<?>>

size

public int size()

Specified by:

size in interface Collection<Enum<?>>

Specified by:

size in interface Set<Enum<?>>

Specified by:

size in class AbstractCollection<Enum<?>>

equals

public boolean equals(Object other)

Specified by:

equals in interface Collection<Enum<?>>

Specified by:

equals in interface Set<Enum<?>>

Overrides:

equals in class AbstractSet<Enum<?>>

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<Enum<?>>

Specified by:

hashCode in interface Set<Enum<?>>

Overrides:

hashCode in class AbstractSet<Enum<?>>

resetIterator

public void resetIterator()

The iterator is reused by this data structure, and you can reset it back to the start of the iteration order using this.

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<Enum<?>>

Specified by:

toArray in interface Set<Enum<?>>

Overrides:

toArray in class AbstractCollection<Enum<?>>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<Enum<?>>

Specified by:

toArray in interface Set<Enum<?>>

Overrides:

toArray in class AbstractCollection<Enum<?>>

Parameters:

a -

toList

public ObjectList<Enum<?>> toList()

Returns a new ObjectList containing the remaining items. Does not change the position of this iterator.

Returns:

a new ObjectList containing the remaining items

toEnumSet

public EnumSet toEnumSet()

Returns a new EnumSet containing the remaining items. Does not change the position of this iterator. The EnumSet this returns will share a key universe with the map linked to this key set.

Returns:

a new EnumSet containing the remaining items, sharing a universe with this key set

appendInto

public Collection<Enum<?>> appendInto(Collection<Enum<?>> coll)

Append the remaining items that this can iterate through into the given Collection. Does not change the position of this iterator.

Parameters:

coll - any modifiable Collection; may have items appended into it

Returns:

the given collection, potentially after modifications