Class ImmutableMapKeySet<K,​V>

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Iterable<K>, java.util.Collection<K>, java.util.Set<K>

    final class ImmutableMapKeySet<K,​V>
    extends IndexedImmutableSet<K>
    keySet() implementation for ImmutableMap.
    • Constructor Detail

    • 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>
      • iterator

        public UnmodifiableIterator<K> iterator()
        Description copied from class: ImmutableCollection
        Returns an unmodifiable iterator across the elements in this collection.
        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>
        Overrides:
        iterator in class IndexedImmutableSet<K>
      • spliterator

        public java.util.Spliterator<K> spliterator()
        Specified by:
        spliterator in interface java.util.Collection<K>
        Specified by:
        spliterator in interface java.lang.Iterable<K>
        Specified by:
        spliterator in interface java.util.Set<K>
        Overrides:
        spliterator in class IndexedImmutableSet<K>
      • contains

        public boolean contains​(java.lang.Object object)
        Specified by:
        contains in interface java.util.Collection<K>
        Specified by:
        contains in interface java.util.Set<K>
        Specified by:
        contains in class ImmutableCollection<K>
      • forEach

        public void forEach​(java.util.function.Consumer<? super K> action)
        Specified by:
        forEach in interface java.lang.Iterable<K>
        Overrides:
        forEach in class IndexedImmutableSet<K>
      • isPartialView

        boolean isPartialView()
        Description copied from class: ImmutableCollection
        Returns true if this immutable collection's implementation contains references to user-created objects that aren't accessible via this collection's methods. This is generally used to determine whether copyOf implementations should make an explicit copy to avoid memory leaks.
        Specified by:
        isPartialView in class ImmutableCollection<K>