Package org.apache.commons.collections4.map

Class AbstractHashedMap.KeySet<K>

  • All Implemented Interfaces:
    java.lang.Iterable<K>, java.util.Collection<K>, java.util.Set<K>
    Direct Known Subclasses:
    AbstractReferenceMap.ReferenceKeySet
    Enclosing class:
    AbstractHashedMap<K,​V>
    protected static class AbstractHashedMap.KeySet<K>
extends java.util.AbstractSet<K>
    KeySet implementation.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected KeySet​(AbstractHashedMap<K,​?> parent)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void clear()  
      boolean contains​(java.lang.Object key)  
      java.util.Iterator<K> iterator()  
      boolean remove​(java.lang.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, toArray

      • Methods inherited from interface java.lang.Iterable

        forEach

      • Methods inherited from interface java.util.Set

        add, addAll, containsAll, isEmpty, retainAll, spliterator, toArray, toArray

    • Method Detail

      • size

        public int size()
        Specified by:
        size in interface java.util.Collection<K>
        Specified by:
        size in interface java.util.Set<K>
        Specified by:
        size in class java.util.AbstractCollection<K>

      • clear

        public void clear()
        Specified by:
        clear in interface java.util.Collection<K>
        Specified by:
        clear in interface java.util.Set<K>
        Overrides:
        clear in class java.util.AbstractCollection<K>

      • contains

        public boolean contains​(java.lang.Object key)
        Specified by:
        contains in interface java.util.Collection<K>
        Specified by:
        contains in interface java.util.Set<K>
        Overrides:
        contains in class java.util.AbstractCollection<K>

      • remove

        public boolean remove​(java.lang.Object key)
        Specified by:
        remove in interface java.util.Collection<K>
        Specified by:
        remove in interface java.util.Set<K>
        Overrides:
        remove in class java.util.AbstractCollection<K>

      • iterator

        public java.util.Iterator<K> iterator()
        Specified by:
        iterator in interface java.util.Collection<K>
        Specified by:
        iterator in interface java.lang.Iterable<K>
        Specified by:
        iterator in interface java.util.Set<K>
        Specified by:
        iterator in class java.util.AbstractCollection<K>