java.lang.Object
- java.util.AbstractCollection<V>
- - com.google.common.collect.ForwardingMap.StandardValues

All Implemented Interfaces:

Iterable<V>, Collection<V>

Enclosing class:

ForwardingMap<K extends @Nullable Object,V extends @Nullable Object>
```
@Beta
protected class ForwardingMap.StandardValues
extends AbstractCollection<V>
```
A sensible implementation of Map.values() in terms of the following methods: ForwardingMap.clear(), ForwardingMap.containsValue(java.lang.Object), ForwardingMap.isEmpty(), ForwardingMap.size(), and the Set.iterator() method of ForwardingMap.entrySet(). In many cases, you may wish to override ForwardingMap.values() to forward to this implementation or a subclass thereof.

Since:

10.0

Constructor Summary

Constructors
Constructor Description

StandardValues()
Constructor for use by subclasses.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Removes all of the elements from this collection (optional operation).
`boolean`	`contains(Object o)`	Returns `true` if this collection contains the specified element.
`boolean`	`isEmpty()`	Returns `true` if this collection contains no elements.
`Iterator<V>`	`iterator()`	Returns an iterator over the elements contained in this collection.
`boolean`	`remove(Object o)`	Removes a single instance of the specified element from this collection, if it is present (optional operation).
`boolean`	`removeAll(Collection<?> c)`	Removes all of this collection's elements that are also contained in the specified collection (optional operation).
`boolean`	`retainAll(Collection<?> c)`	Retains only the elements in this collection that are contained in the specified collection (optional operation).
`int`	`size()`	Returns the number of elements in this collection.

Methods inherited from class java.util.AbstractCollection
add, addAll, containsAll, toArray, toArray, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection
equals, hashCode, parallelStream, removeIf, spliterator, stream, toArray

Methods inherited from interface java.lang.Iterable
forEach

- Constructor Detail
  - StandardValues
```
public StandardValues()
```
    Constructor for use by subclasses.
- Method Detail
  - iterator
```
public Iterator<V> iterator()
```
    Description copied from class: java.util.AbstractCollection
    
    Returns an iterator over the elements contained in this collection.
    
    Specified by:
    
    iterator in interface Collection<K extends @Nullable Object>
    
    Specified by:
    
    iterator in interface Iterable<K extends @Nullable Object>
    
    Specified by:
    
    iterator in class AbstractCollection<V extends @Nullable Object>
    
    Returns:
    
    an iterator over the elements contained in this collection
  - remove
```
public boolean remove(@CheckForNull
                      Object o)
```
    Description copied from class: java.util.AbstractCollection
    
    Removes a single instance of the specified element from this collection, if it is present (optional operation). More formally, removes an element e such that Objects.equals(o, e), if this collection contains one or more such elements. Returns true if this collection contained the specified element (or equivalently, if this collection changed as a result of the call).
    
    Specified by:
    
    remove in interface Collection<K extends @Nullable Object>
    
    Overrides:
    
    remove in class AbstractCollection<V extends @Nullable Object>
    
    Parameters:
    
    o - element to be removed from this collection, if present
    
    Returns:
    
    true if an element was removed as a result of this call
  - removeAll
```
public boolean removeAll(Collection<?> c)
```
    Description copied from class: java.util.AbstractCollection
    
    Removes all of this collection's elements that are also contained in the specified collection (optional operation). After this call returns, this collection will contain no elements in common with the specified collection.
    
    Specified by:
    
    removeAll in interface Collection<K extends @Nullable Object>
    
    Overrides:
    
    removeAll in class AbstractCollection<V extends @Nullable Object>
    
    Parameters:
    
    c - collection containing elements to be removed from this collection
    
    Returns:
    
    true if this collection changed as a result of the call
    
    See Also:
    
    AbstractCollection.remove(Object), AbstractCollection.contains(Object)
  - retainAll
```
public boolean retainAll(Collection<?> c)
```
    Description copied from class: java.util.AbstractCollection
    
    Retains only the elements in this collection that are contained in the specified collection (optional operation). In other words, removes from this collection all of its elements that are not contained in the specified collection.
    
    Specified by:
    
    retainAll in interface Collection<K extends @Nullable Object>
    
    Overrides:
    
    retainAll in class AbstractCollection<V extends @Nullable Object>
    
    Parameters:
    
    c - collection containing elements to be retained in this collection
    
    Returns:
    
    true if this collection changed as a result of the call
    
    See Also:
    
    AbstractCollection.remove(Object), AbstractCollection.contains(Object)
  - size
```
public int size()
```
    Description copied from interface: java.util.Collection
    
    Returns the number of elements in this collection. If this collection contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.
    
    Specified by:
    
    size in interface Collection<K extends @Nullable Object>
    
    Specified by:
    
    size in class AbstractCollection<V extends @Nullable Object>
    
    Returns:
    
    the number of elements in this collection
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from class: java.util.AbstractCollection
    
    Returns true if this collection contains no elements.
    
    Specified by:
    
    isEmpty in interface Collection<K extends @Nullable Object>
    
    Overrides:
    
    isEmpty in class AbstractCollection<V extends @Nullable Object>
    
    Returns:
    
    true if this collection contains no elements
  - contains
```
public boolean contains(@CheckForNull
                        Object o)
```
    Description copied from class: java.util.AbstractCollection
    
    Returns true if this collection contains the specified element. More formally, returns true if and only if this collection contains at least one element e such that Objects.equals(o, e).
    
    Specified by:
    
    contains in interface Collection<K extends @Nullable Object>
    
    Overrides:
    
    contains in class AbstractCollection<V extends @Nullable Object>
    
    Parameters:
    
    o - element whose presence in this collection is to be tested
    
    Returns:
    
    true if this collection contains the specified element
  - clear
```
public void clear()
```
    Description copied from class: java.util.AbstractCollection
    
    Removes all of the elements from this collection (optional operation). The collection will be empty after this method returns.
    
    Specified by:
    
    clear in interface Collection<K extends @Nullable Object>
    
    Overrides:
    
    clear in class AbstractCollection<V extends @Nullable Object>

Class ForwardingMap.StandardValues

Constructor Summary

Method Summary

Methods inherited from class java.util.AbstractCollection

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Collection

Methods inherited from interface java.lang.Iterable

Constructor Detail

StandardValues

Method Detail

iterator

remove

removeAll

retainAll

size

isEmpty

contains

clear