AbstractObjectCollection (fastutil 7.0.13)

java.lang.Object
- java.util.AbstractCollection<K>
- - it.unimi.dsi.fastutil.objects.AbstractObjectCollection<K>

All Implemented Interfaces:

ObjectCollection<K>, ObjectIterable<K>, java.lang.Iterable<K>, java.util.Collection<K>

Direct Known Subclasses:

AbstractObjectBigList, AbstractObjectList, AbstractObjectSet, ObjectCollections.EmptyCollection, ObjectCollections.IterableCollection
```
public abstract class AbstractObjectCollection<K>
extends java.util.AbstractCollection<K>
implements ObjectCollection<K>
```
An abstract class providing basic methods for collections implementing a type-specific interface.
In particular, this class provide iterator(), add(), AbstractCollection.remove(Object) and AbstractCollection.contains(Object) methods that just call the type-specific counterpart.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`boolean`	`add(K k)`
`boolean`	`addAll(java.util.Collection<? extends K> c)` Adds all elements of the given collection to this collection.
`boolean`	`containsAll(java.util.Collection<?> c)` Checks whether this collection contains all elements from the given collection.
`boolean`	`isEmpty()`
`abstract ObjectIterator<K>`	`iterator()` Returns a type-specific iterator on the elements of this collection.
`ObjectIterator<K>`	`objectIterator()` Deprecated.
`boolean`	`removeAll(java.util.Collection<?> c)` Remove from this collection all elements in the given collection.
`boolean`	`retainAll(java.util.Collection<?> c)` Retains in this collection only elements from the given collection.
`java.lang.Object[]`	`toArray()`
`<T> T[]`	`toArray(T[] a)` Returns an containing the items of this collection; the runtime type of the returned array is that of the specified array.
`java.lang.String`	`toString()`

Methods inherited from class java.util.AbstractCollection
clear, contains, remove, size

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

Methods inherited from interface java.util.Collection
clear, contains, equals, hashCode, parallelStream, remove, removeIf, size, spliterator, stream

Methods inherited from interface java.lang.Iterable
forEach

- Method Detail
  - toArray
```
public java.lang.Object[] toArray()
```
    Specified by:
    
    toArray in interface java.util.Collection<K>
    
    Overrides:
    
    toArray in class java.util.AbstractCollection<K>
  - toArray
```
public <T> T[] toArray(T[] a)
```
    Description copied from interface: ObjectCollection
    
    Returns an containing the items of this collection; the runtime type of the returned array is that of the specified array.
    Warning: Note that, contrarily to Collection.toArray(Object[]), this methods just writes all elements of this collection: no special value will be added after the last one.
    
    Specified by:
    
    toArray in interface ObjectCollection<K>
    
    Specified by:
    
    toArray in interface java.util.Collection<K>
    
    Overrides:
    
    toArray in class java.util.AbstractCollection<K>
    
    Parameters:
    
    a - if this array is big enough, it will be used to store this collection.
    
    Returns:
    
    a primitive type array containing the items of this collection.
    
    See Also:
    
    Collection.toArray(Object[])
  - addAll
```
public boolean addAll(java.util.Collection<? extends K> c)
```
    Adds all elements of the given collection to this collection.
    
    Specified by:
    
    addAll in interface java.util.Collection<K>
    
    Overrides:
    
    addAll in class java.util.AbstractCollection<K>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
  - add
```
public boolean add(K k)
```
    Specified by:
    
    add in interface java.util.Collection<K>
    
    Overrides:
    
    add in class java.util.AbstractCollection<K>
  - objectIterator
```
@Deprecated
public ObjectIterator<K> objectIterator()
```
    Deprecated.
    
    Delegates to the new covariantly stronger generic method.
    
    Specified by:
    
    objectIterator in interface ObjectCollection<K>
    
    See Also:
    
    ObjectCollection.iterator()
  - iterator
```
public abstract ObjectIterator<K> iterator()
```
    Description copied from interface: ObjectCollection
    
    Returns a type-specific iterator on the elements of this collection.
    Note that this specification strengthens the one given in Iterable.iterator(), which was already strengthened in the corresponding type-specific class, but was weakened by the fact that this interface extends Collection.
    
    Specified by:
    
    iterator in interface ObjectCollection<K>
    
    Specified by:
    
    iterator in interface ObjectIterable<K>
    
    Specified by:
    
    iterator in interface java.lang.Iterable<K>
    
    Specified by:
    
    iterator in interface java.util.Collection<K>
    
    Specified by:
    
    iterator in class java.util.AbstractCollection<K>
    
    Returns:
    
    a type-specific iterator on the elements of this collection.
  - containsAll
```
public boolean containsAll(java.util.Collection<?> c)
```
    Checks whether this collection contains all elements from the given collection.
    
    Specified by:
    
    containsAll in interface java.util.Collection<K>
    
    Overrides:
    
    containsAll in class java.util.AbstractCollection<K>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection contains all elements of the argument.
  - retainAll
```
public boolean retainAll(java.util.Collection<?> c)
```
    Retains in this collection only elements from the given collection.
    
    Specified by:
    
    retainAll in interface java.util.Collection<K>
    
    Overrides:
    
    retainAll in class java.util.AbstractCollection<K>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
  - removeAll
```
public boolean removeAll(java.util.Collection<?> c)
```
    Remove from this collection all elements in the given collection. If the collection is an instance of this class, it uses faster iterators.
    
    Specified by:
    
    removeAll in interface java.util.Collection<K>
    
    Overrides:
    
    removeAll in class java.util.AbstractCollection<K>
    
    Parameters:
    
    c - a collection.
    
    Returns:
    
    true if this collection changed as a result of the call.
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface java.util.Collection<K>
    
    Overrides:
    
    isEmpty in class java.util.AbstractCollection<K>
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.util.AbstractCollection<K>

Class AbstractObjectCollection<K>

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

Method Detail

toArray

toArray

addAll

add

objectIterator

iterator

containsAll

retainAll

removeAll

isEmpty

toString