Package com.google.common.collect

Class ForwardingMap<K,V>

java.lang.Object
com.google.common.collect.ForwardingObject
com.google.common.collect.ForwardingMap<K,V>
All Implemented Interfaces:
Map<K,V>
Direct Known Subclasses:
EnumBiMap, EnumHashBiMap, ForwardingConcurrentMap, ForwardingSortedMap, ImmutableClassToInstanceMap, ImmutableTypeToInstanceMap, MutableClassToInstanceMap, MutableTypeToInstanceMap
@GwtCompatible @Deprecated(since="2022-12-01") public abstract class ForwardingMap<K,V> extends ForwardingObject implements Map<K,V>
Deprecated.
The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
A map which forwards all its method calls to another map. Subclasses should override one or more methods to modify the behavior of the backing map as desired per the decorator pattern.

Warning: The methods of ForwardingMap forward indiscriminately to the methods of the delegate. For example, overriding put(K, V) alone will not change the behavior of putAll(java.util.Map<? extends K, ? extends V>), which can lead to unexpected behavior. In this case, you should override putAll as well, either providing your own implementation, or delegating to the provided standardPutAll method.

Each of the standard methods, where appropriate, use Objects.equal(java.lang.Object, java.lang.Object) to test equality for both keys and values. This may not be the desired behavior for map implementations that use non-standard notions of key equality, such as a SortedMap whose comparator is not consistent with equals.

The standard methods and the collection views they return are not guaranteed to be thread-safe, even when all of the methods that they depend on are thread-safe.

Since:
2.0 (imported from Google Collections Library)

  • Method Details

    • size

      public int size()
      Deprecated.
      Specified by:
      size in interface Map<K,V>

    • isEmpty

      public boolean isEmpty()
      Deprecated.
      Specified by:
      isEmpty in interface Map<K,V>

    • remove

      public V remove(Object object)
      Deprecated.
      Specified by:
      remove in interface Map<K,V>

    • clear

      public void clear()
      Deprecated.
      Specified by:
      clear in interface Map<K,V>

    • containsKey

      public boolean containsKey(@Nullable Object key)
      Deprecated.
      Specified by:
      containsKey in interface Map<K,V>

    • containsValue

      public boolean containsValue(@Nullable Object value)
      Deprecated.
      Specified by:
      containsValue in interface Map<K,V>

    • get

      public V get(@Nullable Object key)
      Deprecated.
      Specified by:
      get in interface Map<K,V>

    • put

      public V put(K key, V value)
      Deprecated.
      Specified by:
      put in interface Map<K,V>

    • putAll

      public void putAll(Map<? extends K,? extends V> map)
      Deprecated.
      Specified by:
      putAll in interface Map<K,V>

    • keySet

      public Set<K> keySet()
      Deprecated.
      Specified by:
      keySet in interface Map<K,V>

    • values

      public Collection<V> values()
      Deprecated.
      Specified by:
      values in interface Map<K,V>

    • entrySet

      public Set<Map.Entry<K,V>> entrySet()
      Deprecated.
      Specified by:
      entrySet in interface Map<K,V>

    • equals

      public boolean equals(@Nullable Object object)
      Deprecated.
      Specified by:
      equals in interface Map<K,V>
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Deprecated.
      Specified by:
      hashCode in interface Map<K,V>
      Overrides:
      hashCode in class Object