AbstractHashedMap.KeySet

java.lang.Object

java.util.AbstractCollection<K>

java.util.AbstractSet<K>

org.apache.commons.collections4.map.AbstractHashedMap.KeySet<K>

Type Parameters:: K - the type of elements maintained by this set

All Implemented Interfaces:: Iterable<K>, Collection<K>, Set<K>

Direct Known Subclasses:: AbstractReferenceMap.ReferenceKeySet

Enclosing class:: AbstractHashedMap<K,V>

protected static class AbstractHashedMap.KeySet<K> extends AbstractSet<K>

KeySet implementation.

Field Summary

Fields

Modifier and Type

Field

Description

private final AbstractHashedMap<K,?>

parent

The parent map
Constructor Summary

Constructors

Modifier

Constructor

Description

protected

KeySet(AbstractHashedMap<K,?> parent)

Constructs a new instance.
Method Summary

Modifier and Type

Method

Description

void

clear()

boolean

contains(Object key)

Iterator<K>

iterator()

boolean

remove(Object key)

int

size()

Methods inherited from class java.util.AbstractSet
equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection
add, addAll, containsAll, isEmpty, retainAll, toArray, toArray, toString

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

Methods inherited from interface java.lang.Iterable
forEach

Methods inherited from interface java.util.Set
add, addAll, containsAll, isEmpty, retainAll, spliterator, toArray, toArray

Field Details
- parent
  
  private final AbstractHashedMap<K,?> parent
  
  The parent map
Constructor Details
- KeySet
  
  protected KeySet(AbstractHashedMap<K,?> parent)
  
  Constructs a new instance.
  
  Parameters:
  
  parent - The parent AbstractHashedMap.
Method Details
- clear
  
  public void clear()
  
  Specified by:
  
  clear in interface Collection<K>
  
  Specified by:
  
  clear in interface Set<K>
  
  Overrides:
  
  clear in class AbstractCollection<K>
- contains
  
  public boolean contains(Object key)
  
  Specified by:
  
  contains in interface Collection<K>
  
  Specified by:
  
  contains in interface Set<K>
  
  Overrides:
  
  contains in class AbstractCollection<K>
- iterator
  
  public Iterator<K> iterator()
  
  Specified by:
  
  iterator in interface Collection<K>
  
  Specified by:
  
  iterator in interface Iterable<K>
  
  Specified by:
  
  iterator in interface Set<K>
  
  Specified by:
  
  iterator in class AbstractCollection<K>
- remove
  
  public boolean remove(Object key)
  
  Specified by:
  
  remove in interface Collection<K>
  
  Specified by:
  
  remove in interface Set<K>
  
  Overrides:
  
  remove in class AbstractCollection<K>
- size
  
  public int size()
  
  Specified by:
  
  size in interface Collection<K>
  
  Specified by:
  
  size in interface Set<K>
  
  Specified by:
  
  size in class AbstractCollection<K>