FeatureCollectionTable class final
A feature collection table represents an individual feature table in a FeatureCollection.
A FeatureCollectionTable consists of a feature definition (table schema) and a set of features that match that feature definition. You can obtain a FeatureCollectionTable from an existing FeatureCollection.tables collection or you can create a new FeatureCollectionTable programmatically in your app.
To create a new FeatureCollectionTable, you can use a constructor that defines a set of fields, the geometry type, and spatial reference, and then populate it by adding new features. Alternatively, you can create a new FeatureCollectionTable from a FeatureSet, such as the FeatureQueryResult returned from a FeatureTable.queryFeatures.
To render the features in a map or scene, add the FeatureCollectionTable to a FeatureCollection.tables collection, construct a FeatureCollectionLayer from the FeatureCollection, and add it to the map or scene's collection of operational layers. To specify the FeatureCollectionTable symbology, just apply a renderer to the FeatureCollectionTable.renderer. If required, you can override this symbology on a per-feature basis using the FeatureCollectionTable.setSymbolOverride.
- Inheritance
-
- Object
- FeatureTable
- FeatureCollectionTable
- Implemented types
Constructors
-
FeatureCollectionTable({required List<
Field> fields, required GeometryType geometryType, required SpatialReference? spatialReference, bool hasZ = false, bool hasM = false}) -
Creates an empty FeatureCollectionTable from the specified fields,
geometry type, spatial reference. The table can contain z and m values.
factory
- FeatureCollectionTable.withFeatureSet(FeatureSet featureSet)
-
Creates a FeatureCollectionTable populated from the specified
FeatureSet.
factory
-
FeatureCollectionTable.withGeoElements({required List<
GeoElement> geoElements, required List<Field> fields}) -
Creates a FeatureCollectionTable populated from the specified
GeoElement collection.
factory
Properties
- displayName ↔ String
-
A user-friendly name that can be displayed in the UI (for example, in a
Table of Contents).
getter/setter pairinherited
- extent → Envelope?
-
The geographic extent of features within the table.
no setterinherited
-
fields
→ List<
Field> -
The collection of
Field
objects representing the fields of the feature table.no setterinherited - geometryType → GeometryType
-
The type of geometry of the features stored in this table.
no setterinherited
- hasGeometry → bool
-
True if the feature table supports geographic features, false otherwise.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasM → bool
-
True if the feature table supports geometries with M values, false
otherwise.
no setterinherited
- hasZ → bool
-
True if the feature table supports geometries with Z values, false
otherwise.
no setterinherited
- isEditable → bool
-
True if this feature table is editable, false otherwise.
no setterinherited
- layer → Layer?
-
The layer that displays this table, if any.
no setterinherited
- layerInfo → ArcGISFeatureLayerInfo?
-
The layer info of the feature collection table.
no setter
- loadError → ArcGISException?
-
The load error.
no setterinherited
- loadStatus → LoadStatus
-
The load status.
no setterinherited
- numberOfFeatures → int
-
The number of features in the table.
no setterinherited
-
onLoadStatusChanged
→ Stream<
LoadStatus> -
A stream that reports changes to the
LoadStatus
.no setterinherited - renderer ↔ Renderer?
-
The renderer for the feature collection table.
getter/setter pair
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- spatialReference → SpatialReference?
-
The spatial reference of the table.
no setterinherited
- tableName → String
-
The name of the table in the source dataset.
no setterinherited
Methods
-
addFeature(
Feature feature) → Future< void> -
Adds a feature to the table.
inherited
-
addFeatureCancelable(
Feature feature) → CancelableOperation< void> -
Cancelable version of addFeature. See that method for more information.
inherited
-
addFeatures(
List< Feature> features) → Future<void> -
Adds a collection of features to the table.
inherited
-
addFeaturesCancelable(
List< Feature> features) → CancelableOperation<void> -
Cancelable version of addFeatures. See that method for more information.
inherited
-
canAdd(
) → bool -
Determines whether you can add new features to the table.
inherited
-
cancelLoad(
) → void -
Cancels loading metadata for the object.
inherited
-
canDelete(
{required Feature feature}) → bool -
Determines whether you can delete the feature from the table.
inherited
-
canEditGeometry(
) → bool -
Determines whether you can edit the geometry field in a table.
inherited
-
canUpdate(
{required Feature feature}) → bool -
Determines whether you can update the feature in the table.
inherited
-
createFeature(
{Map< String, dynamic> attributes = const {}, Geometry? geometry}) → Feature -
Creates a new feature with the provided attribute values and, optionally,
geometry.
inherited
-
deleteFeature(
Feature feature) → Future< void> -
Deletes a feature from the table.
inherited
-
deleteFeatureCancelable(
Feature feature) → CancelableOperation< void> -
Cancelable version of deleteFeature. See that method for more
information.
inherited
-
deleteFeatures(
List< Feature> features) → Future<void> -
Deletes a collection of features from the table.
inherited
-
deleteFeaturesCancelable(
List< Feature> features) → CancelableOperation<void> -
Cancelable version of deleteFeatures. See that method for more
information.
inherited
-
features(
) → Iterable< Feature> -
Returns the feature iterator.
override
-
getField(
{required String fieldName}) → Field? -
Retrieves the field with the given name.
inherited
-
getSymbolOverride(
{required Feature feature}) → ArcGISSymbol? - Gets the symbol override for the given feature in the feature collection table.
-
load(
) → Future< void> -
Loads the metadata for the object asynchronously.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
queryExtent(
{required QueryParameters queryParameters}) → Future< Envelope> -
Determines the minimum bounding envelope that contains features satisfying
the provided query parameters.
inherited
-
queryExtentCancelable(
{required QueryParameters queryParameters}) → CancelableOperation< Envelope> -
Cancelable version of queryExtent. See that method for more information.
inherited
-
queryFeatureCount(
{required QueryParameters queryParameters}) → Future< int> -
Determines the count of features that satisfy the provided query
parameters.
inherited
-
queryFeatureCountCancelable(
{required QueryParameters queryParameters}) → CancelableOperation< int> -
Cancelable version of queryFeatureCount. See that method for more
information.
inherited
-
queryFeatures(
{required QueryParameters parameters}) → Future< FeatureQueryResult> -
Submits a query against the table.
inherited
-
queryFeaturesCancelable(
{required QueryParameters parameters}) → CancelableOperation< FeatureQueryResult> -
Cancelable version of queryFeatures. See that method for more
information.
inherited
-
queryStatistics(
{required StatisticsQueryParameters statisticsQueryParameters}) → Future< StatisticsQueryResult> -
Calculates values for the requested statistics.
inherited
-
queryStatisticsCancelable(
{required StatisticsQueryParameters statisticsQueryParameters}) → CancelableOperation< StatisticsQueryResult> -
Cancelable version of queryStatistics. See that method for more
information.
inherited
-
retryLoad(
) → Future< void> -
Loads or retries loading metadata for the object asynchronously.
inherited
-
setSymbolOverride(
{required Feature feature, required ArcGISSymbol? symbol}) → void - Sets the symbol override for the given feature in the feature collection table.
-
toString(
) → String -
A string representation of this object.
inherited
-
updateFeature(
Feature feature) → Future< void> -
Updates a feature in the table.
inherited
-
updateFeatureCancelable(
Feature feature) → CancelableOperation< void> -
Cancelable version of updateFeature. See that method for more
information.
inherited
-
updateFeatures(
List< Feature> features) → Future<void> -
Updates a collection of features in the table.
inherited
-
updateFeaturesCancelable(
List< Feature> features) → CancelableOperation<void> -
Cancelable version of updateFeatures. See that method for more
information.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited