GpsPointsCollection<T extends GpsPoint> class Null safety

Stores GPS points with read/write access.

Provides read/write access to GPS points. Because lightweight GpsPointsViews may be created on the data in the list, adding is the only modification operation that's allowed, as inserting or removing could lead to invalid views. Subclass names may start with "Gpc".

Inheritance
Implementers
Available Extensions

Constructors

GpsPointsCollection()

Properties

first → T
Returns the first element.
read-onlyinherited
hashCode int
The hash code for this object.
read-onlyinherited
isEmpty bool
Whether this collection has no elements.
read-onlyinherited
isNotEmpty bool
Whether this collection has at least one element.
read-onlyinherited
isReadonly bool
Collections are typically not read-only.
read-onlyoverride
iterator → RandomAccessIterator<T>
Returns a new Iterator that allows iterating the elements of this Iterable.
read-onlyinherited
last → T
Returns the last element.
read-onlyinherited
length int
Returns the number of elements in this.
read-onlyinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
single → T
Checks that this iterable has only one element, and returns that element.
read-onlyinherited
sortedByTime bool
Indicates whether the contents are sorted in increasing order of time value. If this is the case, time-based queries can be faster by performing a binary search. For every point in time only one entity is allowed to provide a location value, i.e. a list is not sorted if it contains two identical elements consecutively.
read-onlyoverride
sortingEnforcement SortingEnforcement
Whether the list is will disallow modifications that render it in a state that's not sorted by time. Setting this property to true while the collection is in an unsorted state will raise an exception.
read / write

Methods

add(T element) bool
Add a single element to the collection.
add_Unsafe(T element) → void
Internal implementation of add, which does not do any safety checks regarding sorting. Only to be overridden in children.
@protected
addAll(Iterable<T> source) → void
addAllStartingAt(Iterable<T> source, [int skipItems = 0, int? nrItems]) → void
Add all elements from source to this, after skipping skipItems items from the source. skipItems=0 is equivalent to calling addAll.
addAllStartingAt_Unsafe(Iterable<T> source, [int skipItems = 0, int? nrItems]) → void
Internal implementation of addAllStartingAt, which does not do any safety checks regarding sorting. Only to be overridden in children.
@protected
any(bool test(T element)) bool
Checks whether any element of this iterable satisfies test.
inherited
cast<R>() Iterable<R>
Provides a view of this iterable as an iterable of R instances.
inherited
checkContentsSortedByTime([int skipItems = 0, int? nrItems]) bool
Checks whether the contents are sorted by increasing time in cases where the list is not marked as sortedByTime.
compareElementTime(int elementNrA, int elementNrB) TimeComparisonResult
Performs compareTime for the elements in the positions elementNrA and elementNrB, then returns the result.
inherited
compareElementTimeWithSeparateItem(int elementNrA, T elementB) TimeComparisonResult
Performs compareTime for the item in the positions elementNrA and some separate elementB that's presumably not in the list, then returns the result.
inherited
compareElementTimeWithSeparateTime(int elementNrA, GpsTime timeB) TimeComparisonResult
Performs compareTime for the item in the positions elementNrA and some separate timeB that's presumably not in the list, then returns the result.
inherited
contains(Object? element) bool
Whether the collection contains an element equal to element.
inherited
diffElementTimeAndSeparateTime(int elementNrA, GpsTime timeB) int
Calculate the difference in time between the item in the position elementNrA and the timeB. See diffTime for explanations on how the difference is calculated and when it is positive, negative or zero.
inherited
elementAt(int index) → T
Returns the indexth element.
inherited
every(bool test(T element)) bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(T element)) Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
firstWhere(bool test(T element), {T orElse()?}) → T
Returns the first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, T 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 concatenation of this iterable and other.
inherited
forEach(void action(T element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
getSubSource(Iterable<T> source, int skipItems, int? nrItems) Iterable<T>
Returns a subset iterable from source that skips skipItems and copies up to nrItems (if specified) or the entire list (if not specified).
@protected
join([String separator = ""]) String
Converts each element to a String and concatenates the strings.
inherited
lastWhere(bool test(T element), {T orElse()?}) → T
Returns the last element that satisfies the given predicate test.
inherited
map<T>(T toElement(T e)) Iterable<T>
The current elements of this iterable modified by toElement.
inherited
newEmpty({int? capacity}) GpsPointsView<T>
Creates a collection of the same type as this, optionally with a starting capacity for children that support that.
@protectedinherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
reduce(T combine(T value, T element)) → T
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
rollbackAddingLastItem() → dynamic
Removes the last object in this list, but only intended for use during add and similar calls. The list is in general not supposed to have insert/remove operations available as explained in the documentation of the list itself.
@protected
singleWhere(bool test(T element), {T orElse()?}) → T
Returns the single element that satisfies test.
inherited
skip(int count) → RandomAccessIterable<T>
Returns an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(T value)) Iterable<T>
Returns an Iterable that skips leading elements while test is satisfied.
inherited
sublist(int start, [int? end]) GpsPointsCollection<T>
Returns a new collection of the same type as the current collection containing the elements between start and end.
override
take(int count) → RandomAccessIterable<T>
Returns a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(T value)) 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 (some of) the elements of this.
inherited
where(bool test(T 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 ==(Object other) bool
The equality operator.
inherited
operator [](int index) → T
inherited