GpcCompactGpsStay class
Implements efficient storage for GpsStay elements.
The basic storage is the same of GpcCompactGpsPoint, with additional fields for: accuracy, endTime. One or more of these may be null. These are stored as follows after the inherited fields, all in little endian representation:
- GpsStay.accuracy: Uint16 representation of accuracy.
For details see
Conversions.smallDoubleToUint16
. - GpsStay.endTime: Uint32 representation of heading.
For details see
Conversions.gpsTimeToUint32
.
Added together it's 6 bytes per element extra compared to what's needed for the inherited GpsPoint properties.
- Inheritance
-
- Object
- Iterable<
GpsStay> - GpsPointsView<
GpsStay> - GpsPointsCollection<
GpsStay> - GpcEfficient<
GpsStay> - GpcCompact<
GpsStay> - GpcCompactGpsStay
- Available Extensions
Constructors
Properties
- capacity ↔ int
-
The available capacity (in elements) for storage.
getter/setter pairinherited
- elementSizeInBytes → int
-
The number of bytes in
_rawData
required to store a single element.no setteroverride - first → GpsStay
-
The first element.
no setterinherited
- 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
- isReadonly → bool
-
Collections are typically not read-only.
no setterinherited
-
iterator
→ RandomAccessIterator<
GpsStay> -
A new
Iterator
that allows iterating the elements of thisIterable
.no setterinherited - last → GpsStay
-
The last element.
no setterinherited
- length → int
-
The number of elements currently stored in the collection.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- single → GpsStay
-
Checks that this iterable has only one element, and returns that element.
no setterinherited
- 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.
no setterinherited
- 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.
getter/setter pairinherited
Methods
-
add(
GpsStay element) → bool -
Add a single
element
to the collection.inherited -
add_Unsafe(
GpsStay element) → void -
Internal implementation of add, which does not do any safety checks
regarding sorting. Only to be overridden in children.
inherited
-
addAll(
Iterable< GpsStay> source) → void -
inherited
-
addAllStartingAt(
Iterable< GpsStay> source, [int skipItems = 0, int? nrItems]) → void -
Add all elements from
source
to this, after skippingskipItems
items from thesource
.skipItems
=0 is equivalent to calling addAll.inherited -
addAllStartingAt_Unsafe(
Iterable< GpsStay> 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.
inherited
-
addByteData(
ByteData sourceData) → void -
Adds all the
sourceData
to the internal buffer. The data must conform to the internal format, i.e. the number of bytes must be sufficient to represent completely a certain number of elements, otherwise an exception will be thrown.inherited -
any(
bool test(GpsStay element)) → bool -
Checks whether any element of this iterable satisfies
test
.inherited -
cast<
R> () → Iterable< R> -
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.
inherited
-
compareElementTime(
int elementNrA, int elementNrB) → TimeComparisonResult -
Compares the time conditions for the two elements and indices
elementNrA
andelementNrB
.override -
compareElementTimeWithSeparateItem(
int elementNrA, GpsStay elementB) → TimeComparisonResult -
Performs compareTime for the item in the positions
elementNrA
and some separateelementB
that's presumably not in the list, then returns the result.override -
compareElementTimeWithSeparateTime(
int elementNrA, GpsTime timeB) → TimeComparisonResult -
Performs compareTime for the item in the positions
elementNrA
and some separatetimeB
that's presumably not in the list, then returns the result.override -
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 thetimeB
. See diffTime for explanations on how the difference is calculated and when it is positive, negative or zero.inherited -
elementAt(
int index) → GpsStay -
Returns the
index
th element.inherited -
every(
bool test(GpsStay element)) → bool -
Checks whether every element of this iterable satisfies
test
.inherited -
expand<
T> (Iterable< T> toElements(GpsStay element)) → Iterable<T> -
Expands each element of this Iterable into zero or more elements.
inherited
-
exportAsBytes(
int startElement, int nrElements) → List< int> -
Returns a copy of the internal bytes data starting at
startElement
and containingnrElements
elements.inherited -
firstWhere(
bool test(GpsStay element), {GpsStay orElse()?}) → GpsStay -
The first element that satisfies the given predicate
test
.inherited -
fold<
T> (T initialValue, T combine(T previousValue, GpsStay element)) → T -
Reduces a collection to a single value by iteratively combining each
element of the collection with an existing value
inherited
-
followedBy(
Iterable< GpsStay> other) → Iterable<GpsStay> -
Creates the lazy concatenation of this iterable and
other
.inherited -
forEach(
void action(GpsStay element)) → void -
Invokes
action
on each element of this iterable in iteration order.inherited -
getSubSource(
Iterable< GpsStay> source, int skipItems, int? nrItems) → Iterable<GpsStay> -
Returns a subset iterable from
source
that skipsskipItems
and copies up tonrItems
(if specified) or the entire list (if not specified).inherited -
join(
[String separator = ""]) → String -
Converts each element to a String and concatenates the strings.
inherited
-
lastWhere(
bool test(GpsStay element), {GpsStay orElse()?}) → GpsStay -
The last element that satisfies the given predicate
test
.inherited -
map<
T> (T toElement(GpsStay e)) → Iterable< T> -
The current elements of this iterable modified by
toElement
.inherited -
newEmpty(
{int? capacity}) → GpcCompactGpsStay -
Creates a collection of the same type as this, optionally with
a starting
capacity
for children that support that.override -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reduce(
GpsStay combine(GpsStay value, GpsStay element)) → GpsStay -
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.
inherited
-
singleWhere(
bool test(GpsStay element), {GpsStay orElse()?}) → GpsStay -
The single element that satisfies
test
.inherited -
skip(
int count) → RandomAccessIterable< GpsStay> -
Creates an Iterable that provides all but the first
count
elements.inherited -
skipWhile(
bool test(GpsStay value)) → Iterable< GpsStay> -
Creates an
Iterable
that skips leading elements whiletest
is satisfied.inherited -
sublist(
int start, [int? end]) → GpsPointsCollection< GpsStay> -
Returns a new collection of the same type as the current collection
containing the elements between
start
andend
.inherited -
take(
int count) → RandomAccessIterable< GpsStay> -
Creates a lazy iterable of the
count
first elements of this iterable.inherited -
takeWhile(
bool test(GpsStay value)) → Iterable< GpsStay> -
Creates a lazy iterable of the leading elements satisfying
test
.inherited -
toList(
{bool growable = true}) → List< GpsStay> -
Creates a List containing the elements of this Iterable.
inherited
-
toSet(
) → Set< GpsStay> -
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(GpsStay element)) → Iterable< GpsStay> -
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 ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
int index) → GpsStay -
inherited