## com.google.common.collect
Interface SortedSetMultimap<K,V>

All Superinterfaces:
  Multimap<K,V>, SetMultimap<K,V>

All Known Implementing Classes:
  ForwardingSortedSetMultimap, TreeMultimap

    @GwtCompatible
    public interface SortedSetMultimap<K,V>

extends SetMultimap<K,V>

A `SetMultimap` whose set of values for a given key are kept sorted; that is, they comprise a `SortedSet`. It cannot hold duplicate key-value pairs; adding a key-value pair that's already in the multimap has no effect. This interface does not specify the ordering of the multimap's keys. See the `Multimap` documentation for information common to all multimaps.

The `get(K)`, `removeAll(java.lang.Object)`, and `replaceValues(K, java.lang.Iterable<? extends V>)` methods each return a `SortedSet` of values, while `Multimap.entries()` returns a `Set` of map entries. Though the method signature doesn't say so explicitly, the map returned by `asMap()` has `SortedSet` values.

See the Guava User Guide article on `Multimap`.

Since:
  2.0 (imported from Google Collections Library)
Author:
  Jared Levy

Method Summary
`Map<K,Collection<V>>` `asMap()` Returns a map view that associates each key with the corresponding values in the multimap.
`SortedSet<V>` `get(K key)` Returns a collection view of all values associated with a key.
`SortedSet<V>` `removeAll(Object key)` Removes all values associated with a given key.
`SortedSet<V>` `replaceValues(K key, Iterable<? extends V> values)` Stores a collection of values with the same key, replacing any existing values for that key.
`Comparator<? super V>` `valueComparator()` Returns the comparator that orders the multimap values, with `null` indicating that natural ordering is used.

Methods inherited from interface com.google.common.collect.SetMultimap
`entries, equals`

Methods inherited from interface com.google.common.collect.Multimap
`clear, containsEntry, containsKey, containsValue, hashCode, isEmpty, keys, keySet, put, putAll, putAll, remove, size, values`

Method Detail

### get

    SortedSet<V> get(@Nullable
                     K key)

  Returns a collection view of all values associated with a key. If no mappings in the multimap have the provided key, an empty collection is returned.

  Changes to the returned collection will update the underlying multimap, and vice versa.

  Because a `SortedSetMultimap` has unique sorted values for a given key, this method returns a `SortedSet`, instead of the `Collection` specified in the `Multimap` interface.

  Specified by:
    `get` in interface `Multimap<K,V>`
  Specified by:
    `get` in interface `SetMultimap<K,V>`
  Parameters:
    `key` - key to search for in multimap
  Returns:
    the collection of values that the key maps to

### removeAll

    SortedSet<V> removeAll(@Nullable
                           Object key)

  Removes all values associated with a given key.

  Because a `SortedSetMultimap` has unique sorted values for a given key, this method returns a `SortedSet`, instead of the `Collection` specified in the `Multimap` interface.

  Specified by:
    `removeAll` in interface `Multimap<K,V>`
  Specified by:
    `removeAll` in interface `SetMultimap<K,V>`
  Parameters:
    `key` - key of entries to remove from the multimap
  Returns:
    the collection of removed values, or an empty collection if no values were associated with the provided key. The collection may be modifiable, but updating it will have no effect on the multimap.

### replaceValues

    SortedSet<V> replaceValues(K key,
                               Iterable<? extends V> values)

  Stores a collection of values with the same key, replacing any existing values for that key.

  Because a `SortedSetMultimap` has unique sorted values for a given key, this method returns a `SortedSet`, instead of the `Collection` specified in the `Multimap` interface.

  Any duplicates in `values` will be stored in the multimap once.

  Specified by:
    `replaceValues` in interface `Multimap<K,V>`
  Specified by:
    `replaceValues` in interface `SetMultimap<K,V>`
  Parameters:
    `key` - key to store in the multimap
    `values` - values to store in the multimap
  Returns:
    the collection of replaced values, or an empty collection if no values were previously associated with the key. The collection may be modifiable, but updating it will have no effect on the multimap.

### asMap

    Map<K,Collection<V>> asMap()

  Returns a map view that associates each key with the corresponding values in the multimap. Changes to the returned map, such as element removal, will update the underlying multimap. The map does not support `setValue()` on its entries, `put`, or `putAll`.

  When passed a key that is present in the map, `asMap().get(Object)` has the same behavior as `get(K)`, returning a live collection. When passed a key that is not present, however, `asMap().get(Object)` returns `null` instead of an empty collection.

  Though the method signature doesn't say so explicitly, the returned map has `SortedSet` values.

  Specified by:
    `asMap` in interface `Multimap<K,V>`
  Specified by:
    `asMap` in interface `SetMultimap<K,V>`
  Returns:
    a map view from a key to its collection of values

### valueComparator

    Comparator<? super V> valueComparator()

  Returns the comparator that orders the multimap values, with `null` indicating that natural ordering is used.

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