HGrid class

HGrid is an immutable two dimension data structure of cols and rows. Use HGridBuilder to construct a HGrid instance.

See Project Haystack

Inheritance
Mixed in types
Available Extensions

Constructors

HGrid(HDict _meta, List<HCol> cols, List<List<HVal?>> rowList)

Properties

cols → List<HCol>
final
first ↔ HRow
The first element.
getter/setter pairinherited
hashCode → int
Hash code is value based.
no setteroverride
isEmpty → bool
Returns true if number of rows is zero.
no setteroverride
isErr → bool
Error grid have the meta.err marker tag.
no setter
isNotEmpty → bool
Returns true if number of rows is more than zero.
no setteroverride
iterator → Iterator<HRow>
A new Iterator that allows iterating the elements of this Iterable.
no setterinherited
last ↔ HRow
The last element.
getter/setter pairinherited
length ↔ int
The number of objects in this list.
getter/setter pairoverride
meta → HDict
//////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////// Returns grid level meta.
no setter
numCols → int
Get number of columns.
no setter
numRows → int
Returns number of rows
no setter
reversed → Iterable<HRow>
An Iterable of the objects in this list in reverse order.
no setterinherited
rows → UnmodifiableListView<HRow>
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
single → HRow
Checks that this iterable has only one element, and returns that element.
no setterinherited

Methods

add(HRow value) → void
This operation is not supported by an unmodifiable list.
override
addAll(Iterable<HRow> iterable) → void
This operation is not supported by an unmodifiable list.
override
any(bool test(HRow element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
asMap() → Map<int, HRow>
An unmodifiable Map view of this list.
inherited
cast<R>() → List<R>
Returns a view of this list as a list of R instances.
inherited
clear() → void
This operation is not supported by an unmodifiable list.
override
colByIndex(int index, [bool checked = true]) → HCol
colByName(String name, [bool checked = true]) → HCol?
compareTo(Object that) → int
Returns sort order as negative, 0, or positive.
inherited
contains(Object? element) → bool
Whether the collection contains an element equal to element.
inherited
dump(StringBuffer out) → void
/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// Prints grid to out.
elementAt(int index) → HRow
Returns the indexth element.
inherited
every(bool test(HRow element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> f(HRow element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
fillRange(int start, int end, [HRow? fillValue]) → void
This operation is not supported by an unmodifiable list.
override
firstWhere(bool test(HRow element), {HRow orElse()?}) → HRow
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, HRow element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<HRow> other) → Iterable<HRow>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(HRow element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
getRange(int start, int end) → Iterable<HRow>
Creates an Iterable that iterates over a range of elements.
inherited
indexOf(Object? element, [int startIndex = 0]) → int
The first index of element in this list.
override
indexWhere(bool test(HRow element), [int start = 0]) → int
The first index in the list that satisfies the provided test.
inherited
insert(int index, HRow element) → void
This operation is not supported by an unmodifiable list.
override
insertAll(int at, Iterable<HRow> iterable) → void
This operation is not supported by an unmodifiable list.
override
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
lastIndexOf(Object? element, [int? start]) → int
The last index of element in this list.
inherited
lastIndexWhere(bool test(HRow element), [int? start]) → int
The last index in the list that satisfies the provided test.
inherited
lastWhere(bool test(HRow element), {HRow orElse()?}) → HRow
The last element that satisfies the given predicate test.
inherited
map<T>(T f(HRow element)) → 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(HRow combine(HRow previousValue, HRow element)) → HRow
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
remove(Object? element) → bool
This operation is not supported by an unmodifiable list.
override
removeAt(int index) → HRow
This operation is not supported by an unmodifiable list.
override
removeLast() → HRow
This operation is not supported by an unmodifiable list.
override
removeRange(int start, int end) → void
This operation is not supported by an unmodifiable list.
override
removeWhere(bool test(HRow element)) → void
This operation is not supported by an unmodifiable list.
override
replaceRange(int start, int end, Iterable<HRow> iterable) → void
This operation is not supported by an unmodifiable list.
override
retainWhere(bool test(HRow element)) → void
This operation is not supported by an unmodifiable list.
override
row(int i) → HRow
Get a row by its zero based index.
setAll(int at, Iterable<HRow> iterable) → void
This operation is not supported by an unmodifiable list.
override
setRange(int start, int end, Iterable<HRow> iterable, [int skipCount = 0]) → void
This operation is not supported by an unmodifiable list.
override
shuffle([Random? random]) → void
This operation is not supported by an unmodifiable list.
override
singleWhere(bool test(HRow element), {HRow orElse()?}) → HRow
The single element that satisfies test.
inherited
skip(int count) → Iterable<HRow>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(HRow element)) → Iterable<HRow>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
sort([Comparator<HRow>? compare]) → void
This operation is not supported by an unmodifiable list.
override
sublist(int start, [int? end]) → List<HRow>
Returns a new list containing the elements between start and end.
inherited
take(int count) → Iterable<HRow>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(HRow element)) → Iterable<HRow>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toJson() → String
Encodes to JSON string value.
override
toList({bool growable = true}) → List<HRow>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<HRow>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
String format is for human consumption only.
override
toZinc() → String
/////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////
override
where(bool test(HRow element)) → Iterable<HRow>
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<HRow> other) → List<HRow>
Returns the concatenation of this list and other.
inherited
operator ==(Object other) → bool
The equality operator.
override
operator [](int index) → HRow
The object at the given index in the list.
override
operator []=(int index, HRow value) → void
/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// This operation is not supported by an unmodifiable list.
override

Static Properties

EMPTY → HGrid
Empty grid with one column called "empty" and zero rows.
final