private static class Multimaps.UnmodifiableMultimap<K,V> extends ForwardingMultimap<K,V> implements java.io.Serializable
| Modifier and Type | Field and Description |
|---|---|
(package private) Multimap<K,V> |
delegate |
(package private) java.util.Collection<java.util.Map.Entry<K,V>> |
entries |
(package private) Multiset<K> |
keys |
(package private) java.util.Set<K> |
keySet |
(package private) java.util.Map<K,java.util.Collection<V>> |
map |
private static long |
serialVersionUID |
(package private) java.util.Collection<V> |
values |
| Constructor and Description |
|---|
UnmodifiableMultimap(Multimap<K,V> delegate) |
| Modifier and Type | Method and Description |
|---|---|
java.util.Map<K,java.util.Collection<V>> |
asMap()
Returns a view of this multimap as a
Map from each distinct key
to the nonempty collection of that key's associated values. |
void |
clear()
Removes all key-value pairs from the multimap, leaving it empty.
|
protected Multimap<K,V> |
delegate()
Returns the backing delegate instance that methods are forwarded to.
|
java.util.Collection<java.util.Map.Entry<K,V>> |
entries()
Returns a view collection of all key-value pairs contained in this
multimap, as
Map.Entry instances. |
java.util.Collection<V> |
get(K key)
Returns a view collection of the values associated with
key in this
multimap, if any. |
Multiset<K> |
keys()
Returns a view collection containing the key from each key-value pair in
this multimap, without collapsing duplicates.
|
java.util.Set<K> |
keySet()
Returns a view collection of all distinct keys contained in this
multimap.
|
boolean |
put(K key,
V value)
Stores a key-value pair in this multimap.
|
boolean |
putAll(K key,
java.lang.Iterable<? extends V> values)
Stores a key-value pair in this multimap for each of
values, all
using the same key, key. |
boolean |
putAll(Multimap<? extends K,? extends V> multimap)
Stores all key-value pairs of
multimap in this multimap, in the
order returned by multimap.entries(). |
boolean |
remove(java.lang.Object key,
java.lang.Object value)
Removes a single key-value pair with the key
key and the value
value from this multimap, if such exists. |
java.util.Collection<V> |
removeAll(java.lang.Object key)
Removes all values associated with the key
key. |
java.util.Collection<V> |
replaceValues(K key,
java.lang.Iterable<? extends V> values)
Stores a collection of values with the same key, replacing any existing
values for that key.
|
java.util.Collection<V> |
values()
Returns a view collection containing the value from each key-value
pair contained in this multimap, without collapsing duplicates (so
values().size() == size()). |
containsEntry, containsKey, containsValue, equals, hashCode, isEmpty, sizetoStringtransient java.util.Set<K> keySet
transient java.util.Collection<V> values
private static final long serialVersionUID
protected Multimap<K,V> delegate()
ForwardingObjectForwardingSet.delegate(). Concrete subclasses override this method to supply
the instance being decorated.delegate in class ForwardingMultimap<K,V>public void clear()
Multimappublic java.util.Map<K,java.util.Collection<V>> asMap()
MultimapMap from each distinct key
to the nonempty collection of that key's associated values. Note that
this.asMap().get(k) is equivalent to this.get(k) only when
k is a key contained in the multimap; otherwise it returns null as opposed to an empty collection.
Changes to the returned map or the collections that serve as its values
will update the underlying multimap, and vice versa. The map does not
support put or putAll, nor do its entries support setValue.
public java.util.Collection<java.util.Map.Entry<K,V>> entries()
MultimapMap.Entry instances.
Changes to the returned collection or the entries it contains will update the underlying multimap, and vice versa. However, adding to the returned collection is not possible.
public java.util.Collection<V> get(K key)
Multimapkey in this
multimap, if any. Note that when containsKey(key) is false, this
returns an empty collection, not null.
Changes to the returned collection will update the underlying multimap, and vice versa.
public Multiset<K> keys()
Multimapkeys().count(k) ==
get(k).size() for all k.
Changes to the returned multiset will update the underlying multimap, and vice versa. However, adding to the returned collection is not possible.
public java.util.Set<K> keySet()
MultimapChanges to the returned set will update the underlying multimap, and vice versa. However, adding to the returned set is not possible.
public boolean put(K key, V value)
MultimapSome multimap implementations allow duplicate key-value pairs, in which
case put always adds a new key-value pair and increases the
multimap size by 1. Other implementations prohibit duplicates, and storing
a key-value pair that's already in the multimap has no effect.
public boolean putAll(K key, java.lang.Iterable<? extends V> values)
Multimapvalues, all
using the same key, key. Equivalent to (but expected to be more
efficient than):
for (V value : values) {
put(key, value);
}
In particular, this is a no-op if values is empty.
public boolean putAll(Multimap<? extends K,? extends V> multimap)
Multimapmultimap in this multimap, in the
order returned by multimap.entries().public boolean remove(java.lang.Object key,
java.lang.Object value)
Multimapkey and the value
value from this multimap, if such exists. If multiple key-value
pairs in the multimap fit this description, which one is removed is
unspecified.public java.util.Collection<V> removeAll(java.lang.Object key)
Multimapkey.
Once this method returns, key will not be mapped to any values,
so it will not appear in Multimap.keySet(), Multimap.asMap(), or any other
views.
public java.util.Collection<V> replaceValues(K key, java.lang.Iterable<? extends V> values)
MultimapIf values is empty, this is equivalent to
removeAll(key).
replaceValues in interface Multimap<K,V>replaceValues in class ForwardingMultimap<K,V>public java.util.Collection<V> values()
Multimapvalues().size() == size()).
Changes to the returned collection will update the underlying multimap, and vice versa. However, adding to the returned collection is not possible.