Module is.codion.common.reactive

Package is.codion.common.reactive.value

Interface ObservableValueCollection<T,C extends Collection<T>>

Type Parameters:

T - the values type

C - the collection type

All Superinterfaces:

Iterable<T>, Observable<C>, Observer<C>

All Known Subinterfaces:

ObservableValueList<T>, ObservableValueSet<T>, ValueCollection<T,C>, ValueList<T>, ValueSet<T>

public interface ObservableValueCollection<T,C extends Collection<T>>
extends Observable<C>, Iterable<T>

A read-only observable collection of values.

Nested Class Summary

Nested classes/interfaces inherited from interface is.codion.common.reactive.observer.Observer

Observer.Builder<T,B extends Observer.Builder<T,B>>

Method Summary

Modifier and Type	Method	Description
boolean	contains(@Nullable T value)	Returns true if this collection contains the specified element
boolean	containsAll(Collection<T> values)	Returns true if this collection contains all the elements of the specified collection
boolean	containsNone(Collection<T> values)	Returns true if this collection contains none of the elements of the specified collection
boolean	containsOnly(Collection<T> values)	Returns true if this collection contains only the elements of the specified collection
@NonNull C	get()
boolean	isEmpty()
Optional<C>	optional()
int	size()

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface is.codion.common.reactive.observer.Observable

changed, getOrThrow, getOrThrow, is, isNot, isNull, isNullable

Methods inherited from interface is.codion.common.reactive.observer.Observer

addConsumer, addListener, addWeakConsumer, addWeakListener, observer, removeConsumer, removeListener, removeWeakConsumer, removeWeakListener, when, when

Method Details

get

@NonNull C get()

Specified by:

get in interface Observable<T>

Returns:

the value

contains

boolean contains(@Nullable T value)

Returns true if this collection contains the specified element

Parameters:

value - the element

Returns:

true if this collection contains the specified element

containsAll

boolean containsAll(Collection<T> values)

Returns true if this collection contains all the elements of the specified collection

Parameters:

values - the elements to check

Returns:

true if this collection contains all the elements of the specified collection

containsOnly

boolean containsOnly(Collection<T> values)

Returns true if this collection contains only the elements of the specified collection

Parameters:

values - the elements to check

Returns:

true if this collection contains only the elements of the specified collection

containsNone

boolean containsNone(Collection<T> values)

Returns true if this collection contains none of the elements of the specified collection

Parameters:

values - the elements to check

Returns:

true if this collection contains none of the elements of the specified collection

isEmpty

boolean isEmpty()

Returns:

true if this collection is empty

size

int size()

Returns:

the number of elements in this collection

optional

Optional<C> optional()

Specified by:

optional in interface Observable<T>

Returns:

the values or an empty Optional if the collection is empty.