Package net.apartium.cocoabeans.state

Interface CollectionObservable<E,C extends Collection<E>>

Type Parameters:

E - Element type

C - Collection type

All Superinterfaces:

Observable<C>

All Known Subinterfaces:

ListObservable<E>, SetObservable<E>

@AvailableSince("0.0.39")
public interface CollectionObservable<E,C extends Collection<E>>
extends Observable<C>

Represents an observable containing multiple values

See Also:

• Observable

Method Summary

Modifier and Type	Method	Description
boolean	add(E element)	Add an element to this observable
boolean	addAll(Collection<? extends E> collection)	Add multiple elements to this observable
void	clear()	Clear all elements from this observable
boolean	remove(E element)	Removes an element from this observable
boolean	removeAll(Collection<? extends E> collection)	Remove multiple elements from this observable
boolean	removeIf(Predicate<? super E> filter)	Remove all elements matching given predicate
boolean	retainAll(Collection<? extends E> collection)	Remove all elements not in given collection
Observable<Integer>	size()	Returns an observable representing the size of the observable.

Methods inherited from interface net.apartium.cocoabeans.state.Observable

get, map, observe, removeObserver, watch

Method Details

add

boolean add(E element)

Add an element to this observable

Parameters:

element - element to add

Returns:

true if successful, else false

See Also:

• Collection.add(Object)

remove

boolean remove(E element)

Removes an element from this observable

Parameters:

element - element to remove

Returns:

true if successful, else false

See Also:

• Collection.remove(Object)

addAll

boolean addAll(Collection<? extends E> collection)

Add multiple elements to this observable

Parameters:

collection - elements to add

Returns:

true if successful, else false

See Also:

• Collection.addAll(Collection)

removeAll

boolean removeAll(Collection<? extends E> collection)

Remove multiple elements from this observable

Parameters:

collection - elements to remove

Returns:

true if successful, else false

See Also:

• Collection.removeAll(Collection)

removeIf

boolean removeIf(Predicate<? super E> filter)

Remove all elements matching given predicate

Parameters:

filter - predicate

Returns:

true if successful, else false

See Also:

• Collection.removeIf(Predicate)

retainAll

boolean retainAll(Collection<? extends E> collection)

Remove all elements not in given collection

Parameters:

collection - collection

Returns:

true if successful, else false

See Also:

• Collection.retainAll(Collection)

clear

void clear()

Clear all elements from this observable

See Also:

• Collection.clear()

size

Observable<Integer> size()

Returns an observable representing the size of the observable. When the size of the current observable changes, the size observable will emit the new size.

Returns:

size observable