DelegatingList<E> class
A List that delegates all operations to a base list.
This class can be used to hide non-List methods of a list object, or it
can be extended to add extra functionality on top of an existing list
object.
- Implemented types
-
- List<
E>
- List<
- Implementers
- Available Extensions
Constructors
-
DelegatingList(List<
E> base) -
const
Properties
- first ↔ E
-
The first element.
getter/setter pairinherited-getteroverride-setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- isEmpty → bool
-
Whether this collection has no elements.
no setterinherited
- isNotEmpty → bool
-
Whether this collection has at least one element.
no setterinherited
-
iterator
→ Iterator<
E> -
A new
Iteratorthat allows iterating the elements of thisIterable.no setterinherited - last ↔ E
-
The last element.
getter/setter pairinherited-getteroverride-setter
- length ↔ int
-
The number of elements in this Iterable.
getter/setter pairinherited-getteroverride-setter
-
reversed
→ Iterable<
E> -
An Iterable of the objects in this list in reverse order.
no setteroverride
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- single → E
-
Checks that this iterable has only one element, and returns that element.
no setterinherited
Methods
-
add(
E value) → void -
Adds
valueto the end of this list, extending the length by one.override -
addAll(
Iterable< E> iterable) → void -
Appends all objects of
iterableto the end of this list.override -
any(
bool test(E)) → bool -
Checks whether any element of this iterable satisfies
test.inherited -
asMap(
) → Map< int, E> -
An unmodifiable Map view of this list.
override
-
cast<
T> () → List< T> -
A view of this iterable as an iterable of
Rinstances. -
clear(
) → void -
Removes all objects from this list; the length of the list becomes zero.
override
-
contains(
Object? element) → bool -
Whether the collection contains an element equal to
element.inherited -
elementAt(
int index) → E -
Returns the
indexth element.inherited -
every(
bool test(E)) → bool -
Checks whether every element of this iterable satisfies
test.inherited -
expand<
T> (Iterable< T> f(E)) → Iterable<T> -
Expands each element of this Iterable into zero or more elements.
inherited
-
fillRange(
int start, int end, [E? fillValue]) → void -
Overwrites a range of elements with
fillValue.override -
firstWhere(
bool test(E), {E orElse()?}) → E -
The first element that satisfies the given predicate
test.inherited -
fold<
T> (T initialValue, T combine(T previousValue, E element)) → T -
Reduces a collection to a single value by iteratively combining each
element of the collection with an existing value
inherited
-
followedBy(
Iterable< E> other) → Iterable<E> -
Creates the lazy concatenation of this iterable and
other.inherited -
forEach(
void f(E)) → void -
Invokes
actionon each element of this iterable in iteration order.inherited -
getRange(
int start, int end) → Iterable< E> -
Creates an Iterable that iterates over a range of elements.
override
-
indexOf(
E element, [int start = 0]) → int -
The first index of
elementin this list.override -
indexWhere(
bool test(E), [int start = 0]) → int -
The first index in the list that satisfies the provided
test.override -
insert(
int index, E element) → void -
Inserts
elementat positionindexin this list.override -
insertAll(
int index, Iterable< E> iterable) → void -
Inserts all objects of
iterableat positionindexin this list.override -
join(
[String separator = '']) → String -
Converts each element to a String and concatenates the strings.
inherited
-
lastIndexOf(
E element, [int? start]) → int -
The last index of
elementin this list.override -
lastIndexWhere(
bool test(E), [int? start]) → int -
The last index in the list that satisfies the provided
test.override -
lastWhere(
bool test(E), {E orElse()?}) → E -
The last element that satisfies the given predicate
test.inherited -
map<
T> (T f(E)) → Iterable< T> -
The current elements of this iterable modified by
toElement.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reduce(
E combine(E value, E element)) → E -
Reduces a collection to a single value by iteratively combining elements
of the collection using the provided function.
inherited
-
remove(
Object? value) → bool -
Removes the first occurrence of
valuefrom this list.override -
removeAt(
int index) → E -
Removes the object at position
indexfrom this list.override -
removeLast(
) → E -
Removes and returns the last object in this list.
override
-
removeRange(
int start, int end) → void -
Removes a range of elements from the list.
override
-
removeWhere(
bool test(E)) → void -
Removes all objects from this list that satisfy
test.override -
replaceRange(
int start, int end, Iterable< E> iterable) → void -
Replaces a range of elements with the elements of
replacements.override -
retainWhere(
bool test(E)) → void -
Removes all objects from this list that fail to satisfy
test.override -
retype<
T> () → List< T> -
setAll(
int index, Iterable< E> iterable) → void -
Overwrites elements with the objects of
iterable.override -
setRange(
int start, int end, Iterable< E> iterable, [int skipCount = 0]) → void -
Writes some elements of
iterableinto a range of this list.override -
shuffle(
[Random? random]) → void -
Shuffles the elements of this list randomly.
override
-
singleWhere(
bool test(E), {E orElse()?}) → E -
The single element that satisfies
test.inherited -
skip(
int n) → Iterable< E> -
Creates an Iterable that provides all but the first
countelements.inherited -
skipWhile(
bool test(E)) → Iterable< E> -
Creates an
Iterablethat skips leading elements whiletestis satisfied.inherited -
sort(
[int compare(E, E)?]) → void -
Sorts this list according to the order specified by the
comparefunction.override -
sublist(
int start, [int? end]) → List< E> -
Returns a new list containing the elements between
startandend.override -
take(
int n) → Iterable< E> -
Creates a lazy iterable of the
countfirst elements of this iterable.inherited -
takeWhile(
bool test(E)) → Iterable< E> -
Creates a lazy iterable of the leading elements satisfying
test.inherited -
toList(
{bool growable = true}) → List< E> -
Creates a List containing the elements of this Iterable.
inherited
-
toSet(
) → Set< E> -
Creates a Set containing the same elements as this iterable.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
where(
bool test(E)) → Iterable< E> -
Creates a new lazy Iterable with all elements that satisfy the
predicate
test.inherited -
whereType<
T> () → Iterable< T> -
Creates a new lazy Iterable with all elements that have type
T.inherited
Operators
-
operator +(
List< E> other) → List<E> -
Returns the concatenation of this list and
other.override -
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
int index) → E -
The object at the given
indexin the list.override -
operator []=(
int index, E value) → void -
Sets the value at the given
indexin the list tovalue.override