CombinedListView< T> class
A view of several lists combined into a single list.
All methods and accessors treat the CombinedListView list as if it were a single concatenated list, but the underlying implementation is based on lazily accessing individual list instances. This means that if the underlying lists change, the CombinedListView will reflect those changes.
The index operator ([]
) and length property of a CombinedListView are
both O(lists)
rather than O(1)
. A CombinedListView is unmodifiable.
- Inheritance
- Implemented types
Constructors
-
CombinedListView(List<
List< T>> _lists) -
Creates a combined view of
lists
.
Properties
- length ↔ int
-
Returns the number of objects in this list. [...]
read / write, override
- first ↔ T
-
Returns the first element. [...]
read / write, inherited
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- isEmpty → bool
-
Returns
true
if there are no elements in this collection. [...]read-only, inherited - isNotEmpty → bool
-
Returns true if there is at least one element in this collection. [...]
read-only, inherited
-
iterator
→ Iterator<
T> -
Returns a new
Iterator
that allows iterating the elements of thisIterable
. [...]read-only, inherited - last ↔ T
-
Returns the last element. [...]
read / write, inherited
-
reversed
→ Iterable<
T> -
Returns an Iterable of the objects in this list in reverse order.
read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
- single → T
-
Checks that this iterable has only one element, and returns that element. [...]
read-only, inherited
Methods
-
clear(
) → void -
Removes all objects from this list;
the length of the list becomes zero. [...]
override
-
remove(
Object element) → bool -
Removes the first occurrence of
value
from this list. [...]override -
removeWhere(
bool test(T element)) → void -
Removes all objects from this list that satisfy
test
. [...]override -
retainWhere(
bool test(T element)) → void -
Removes all objects from this list that fail to satisfy
test
. [...]override -
add(
T element) → void -
Adds
value
to the end of this list, extending the length by one. [...]inherited -
addAll(
Iterable< T> iterable) → void -
Appends all objects of
iterable
to the end of this list. [...]inherited -
any(
bool test(E element)) → bool -
Checks whether any element of this iterable satisfies
test
. [...]inherited -
asMap(
) → Map< int, T> -
Returns an unmodifiable Map view of
this
. [...]inherited -
cast<
R>( ) → List< R> -
Returns a view of this list as a list of
R
instances. [...]inherited -
contains(
Object element) → bool -
Returns true if the collection contains an element equal to
element
. [...]inherited -
elementAt(
int index) → T -
Returns the
index
th element. [...]inherited -
every(
bool test(E element)) → bool -
Checks whether every element of this iterable satisfies
test
. [...]inherited -
expand<
T>( Iterable< T> f(E element)) → Iterable< T> -
Expands each element of this Iterable into zero or more elements. [...]
inherited
-
fillRange(
int start, int end, [ T fill ]) → void -
Sets the objects in the range
start
inclusive toend
exclusive to the givenfillValue
. [...]inherited -
firstWhere(
bool test(E element), { T orElse() }) → T -
Returns 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< T> other) → Iterable< T> -
Returns the lazy concatentation of this iterable and
other
. [...]inherited -
forEach(
void action(E element)) → void -
Applies the function
f
to each element of this collection in iteration order.inherited -
getRange(
int start, int end) → Iterable< T> -
Returns an Iterable that iterates over the objects in the range
start
inclusive toend
exclusive. [...]inherited -
indexOf(
Object element, [ int start = 0 ]) → int -
Returns the first index of
element
in this list. [...]inherited -
indexWhere(
bool test(E element), [ int start = 0 ]) → int -
Returns the first index in the list that satisfies the provided
test
. [...]inherited -
insert(
int index, T element) → void -
Inserts the object at position
index
in this list. [...]inherited -
insertAll(
int index, Iterable< T> iterable) → void -
Inserts all objects of
iterable
at positionindex
in this list. [...]inherited -
join(
[String separator = "" ]) → String -
Converts each element to a String and concatenates the strings. [...]
inherited
-
lastIndexOf(
Object element, [ int start ]) → int -
Returns the last index of
element
in this list. [...]inherited -
lastIndexWhere(
bool test(E element), [ int start ]) → int -
Returns the last index in the list that satisfies the provided
test
. [...]inherited -
lastWhere(
bool test(E element), { T orElse() }) → T -
Returns the last element that satisfies the given predicate
test
. [...]inherited -
map<
T>( T f(E element)) → Iterable< T> -
Returns a new lazy Iterable with elements that are created by
calling
f
on each element of thisIterable
in iteration order. [...]inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
reduce(
T combine(E previousValue, E element)) → T -
Reduces a collection to a single value by iteratively combining elements
of the collection using the provided function. [...]
inherited
-
removeAt(
int index) → T -
Removes the object at position
index
from this list. [...]inherited -
removeLast(
) → T -
Pops and returns the last object in this list. [...]
inherited
-
removeRange(
int start, int end) → void -
Removes the objects in the range
start
inclusive toend
exclusive. [...]inherited -
replaceRange(
int start, int end, Iterable< T> newContents) → void -
Removes the objects in the range
start
inclusive toend
exclusive and inserts the contents ofreplacement
in its place. [...]inherited -
setAll(
int index, Iterable< T> iterable) → void -
Overwrites objects of
this
with the objects ofiterable
, starting at positionindex
in this list. [...]inherited -
setRange(
int start, int end, Iterable< T> iterable, [ int skipCount = 0 ]) → void -
Copies the objects of
iterable
, skippingskipCount
objects first, into the rangestart
, inclusive, toend
, exclusive, of the list. [...]inherited -
shuffle(
[Random random ]) → void -
Shuffles the elements of this list randomly.
inherited
-
singleWhere(
bool test(E element), { T orElse() }) → T -
Returns the single element that satisfies
test
. [...]inherited -
skip(
int count) → Iterable< T> -
Returns an Iterable that provides all but the first
count
elements. [...]inherited -
skipWhile(
bool test(E element)) → Iterable< T> -
Returns an
Iterable
that skips leading elements whiletest
is satisfied. [...]inherited -
sort(
[int compare(E a, E b) ]) → void -
Sorts this list according to the order specified by the
compare
function. [...]inherited -
sublist(
int start, [ int end ]) → List< T> -
Returns a new list containing the elements between
start
andend
. [...]inherited -
take(
int count) → Iterable< T> -
Returns a lazy iterable of the
count
first elements of this iterable. [...]inherited -
takeWhile(
bool test(E element)) → Iterable< T> -
Returns a lazy iterable of the leading elements satisfying
test
. [...]inherited -
toList(
{bool growable: true }) → List< T> -
Creates a List containing the elements of this Iterable. [...]
inherited
-
toSet(
) → Set< T> -
Creates a Set containing the same elements as this iterable. [...]
inherited
-
toString(
) → String -
Returns a string representation of this object.
inherited
-
where(
bool test(E element)) → Iterable< T> -
Returns a new lazy Iterable with all elements that satisfy the
predicate
test
. [...]inherited -
whereType<
T>( ) → Iterable< T> -
Returns a new lazy Iterable with all elements that have type
T
. [...]inherited
Operators
-
operator [](
int index) → T -
Returns the object at the given
index
in the list or throws a RangeError ifindex
is out of bounds.override -
operator []=(
int index, T value) → void -
Sets the value at the given
index
in the list tovalue
or throws a RangeError ifindex
is out of bounds.override -
operator +(
List< T> other) → List< T> -
Returns the concatenation of this list and
other
. [...]inherited -
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited