require(["esri/layers/support/FeatureType"], (FeatureType) => { /* code goes here */ });
import FeatureType from "@arcgis/core/layers/support/FeatureType.js";
esri/layers/support/FeatureType
FeatureType is a subset of features defined in a FeatureLayer that share the same attributes. They are used as a way to categorize your data. For example, the streets in a city streets feature layer could be categorized into three feature types: local streets, collector streets, and arterial streets.
Constructors
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Parameterproperties Objectoptional
See the properties for a list of all the properties that may be passed into the constructor.
Property Overview
Name | Type | Summary | Class |
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The name of the class. | Accessor | ||
Domains associated with the feature type. | FeatureType | ||
The feature type identifier. | FeatureType | ||
The feature type name. | FeatureType | ||
Array of feature templates associated with the feature type. | FeatureType |
Property Details
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domains
domains HashMap<(CodedValueDomain|RangeDomain|InheritedDomain)>
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Domains associated with the feature type. It is an object where the name of each property corresponds with the name of a field containing a domain. If a field's domain is an instance of InheritedDomain, the application will use the domain defined for the field from the layer. If the domain is an instance of CodedValueDomain or RangeDomain then the domain is defined specifically for the given feature type.
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name
name String
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The feature type name.
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templates
templates FeatureTemplate[]
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Array of feature templates associated with the feature type.
Method Overview
Name | Return Type | Summary | Class |
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Adds one or more handles which are to be tied to the lifecycle of the object. | Accessor | ||
this | Creates a deep clone of this object. | FeatureType | |
* | Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product. | FeatureType | |
Returns true if a named group of handles exist. | Accessor | ||
Removes a group of handles owned by the object. | Accessor | ||
Converts an instance of this class to its ArcGIS portal JSON representation. | FeatureType |
Method Details
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Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25Accessor since 4.0, addHandles added at 4.25. -
Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.
// Manually manage handles const handle = reactiveUtils.when( () => !view.updating, () => { wkidSelect.disabled = false; }, { once: true } ); this.addHandles(handle); // Destroy the object this.destroy();
ParametershandleOrHandles WatchHandle|WatchHandle[]Handles marked for removal once the object is destroyed.
groupKey *optionalKey identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.
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Creates a deep clone of this object. Any properties that store values by reference will be assigned copies of the referenced values on the cloned instance.
ReturnsType Description this A deep clone of the class instance that invoked this method.
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Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product. The object passed into the input
json
parameter often comes from a response to a query operation in the REST API or a toJSON() method from another ArcGIS product. See the Using fromJSON() topic in the Guide for details and examples of when and how to use this function.Parameterjson ObjectA JSON representation of the instance in the ArcGIS format. See the ArcGIS REST API documentation for examples of the structure of various input JSON objects.
ReturnsType Description * Returns a new instance of this class.
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hasHandles
InheritedMethodhasHandles(groupKey){Boolean}
Inherited from AccessorSince: ArcGIS Maps SDK for JavaScript 4.25Accessor since 4.0, hasHandles added at 4.25. -
Returns true if a named group of handles exist.
ParametergroupKey *optionalA group key.
ReturnsType Description Boolean Returns true
if a named group of handles exist.Example// Remove a named group of handles if they exist. if (obj.hasHandles("watch-view-updates")) { obj.removeHandles("watch-view-updates"); }
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Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25Accessor since 4.0, removeHandles added at 4.25. -
Removes a group of handles owned by the object.
ParametergroupKey *optionalA group key or an array or collection of group keys to remove.
Exampleobj.removeHandles(); // removes handles from default group obj.removeHandles("handle-group"); obj.removeHandles("other-handle-group");
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toJSON
toJSON(){Object}
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Converts an instance of this class to its ArcGIS portal JSON representation. See the Using fromJSON() guide topic for more information.
ReturnsType Description Object The ArcGIS portal JSON representation of an instance of this class.