DataLayer | API Reference | ArcGIS Maps SDK for JavaScript 4.31

Input for properties of ClosestFacilityParameters, RouteParameters or ServiceAreaParameters. The DataLayer can be used to define the following for each parameter type:

ClosestFacilityParameters: define facilities, incidents and barriers.
RouteParameters: define barriers and stops.
ServiceAreaParameters: define facilities and barriers.

Constructors

DataLayer Constructor new DataLayer(properties)

Parameter

properties Object

optional

See the properties for a list of all the properties that may be passed into the constructor.

Property Overview

Any properties can be set, retrieved or listened to. See the Watch for changes topic.

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Type	Summary	Class
String	The name of the class.	Accessor
Boolean	If true, restricted network elements should be considered when finding network locations.	DataLayer
Geometry	The geometry to apply to the spatial filter.	DataLayer
String	The type of geometry specified by the geometry property.	DataLayer
String	The name of the data layer in the map service that is being referenced.	DataLayer
String	The spatial relationship to be applied on the input geometry while performing the query.	DataLayer
String	For DataLayer the type is always "layer".	DataLayer
String	A where clause for the query.	DataLayer

Property Details

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

The name of the class. The declared class name is formatted as esri.folder.className.

doNotLocateOnRestrictedElements Property doNotLocateOnRestrictedElements Boolean Since: ArcGIS Maps SDK for JavaScript 4.21 DataLayer since 4.20, doNotLocateOnRestrictedElements added at 4.21.

If true, restricted network elements should be considered when finding network locations.

geometry Property geometry Geometry

The geometry to apply to the spatial filter. The spatial relationship as specified by spatialRelationship is applied to this geometry while performing the query.

Example

let stops = new DataLayer();
stops.geometry = view.extent;

geometryType Property geometryType String Since: ArcGIS Maps SDK for JavaScript 4.24 DataLayer since 4.20, geometryType added at 4.24.

The type of geometry specified by the geometry property.

Possible Values:"point" |"polyline" |"polygon" |"envelope" |"multipoint"

name Property name String

The name of the data layer in the map service that is being referenced.

Example

let stops = new DataLayer();
stops.name = "Hospitals";

spatialRelationship Property spatialRelationship String

The spatial relationship to be applied on the input geometry while performing the query.

Possible Value	Description
intersects	Part of a feature from feature class 1 is contained in a feature from feature class 2.
contains	Part or all of a feature from feature class 1 is contained within a feature from feature class 2.
crosses	The feature from feature class 1 crosses a feature from feature class 2.
envelope-intersects	The envelope of feature class 1 intersects with the envelope of feature class 2.
index-intersects	The envelope of the query feature class intersects the index entry for the target feature class.
overlaps	Features from feature class 1 overlap features in feature class 2.
touches	The feature from feature class 1 touches the border of a feature from feature class 2.
within	The feature from feature class 1 is completely enclosed by the feature from feature class 2.
relation	Allows specification of any relationship defined using the Shape Comparison Language.

Example

let stops = new DataLayer();
stops.spatialRelationship = "contains";

type Property type String

For DataLayer the type is always "layer".

where Property where String

A where clause for the query. Any legal SQL where clause operating on the fields in the layer is allowed.

Example

let stops = new DataLayer();
stops.where = "POP2000 > 350000";

Method Overview

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Return Type	Summary	Class
	Adds one or more handles which are to be tied to the lifecycle of the object.	Accessor
*	Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product.	DataLayer
Boolean	Returns true if a named group of handles exist.	Accessor
	Removes a group of handles owned by the object.	Accessor
Object	Converts an instance of this class to its ArcGIS portal JSON representation.	DataLayer

Method Details

addHandles Inherited Method addHandles(handleOrHandles, groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor 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();

Parameters

handleOrHandles WatchHandle|WatchHandle []

Handles marked for removal once the object is destroyed.

groupKey *

optional

Key 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.

fromJSON Method fromJSON(json){*}static

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.

Parameter

json Object

A 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.

Returns

Type	Description
*	Returns a new instance of this class.

hasHandles Inherited Method hasHandles(groupKey){Boolean} Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 4.25.

Returns true if a named group of handles exist.

Parameter

groupKey *

optional

A group key.

Returns

Type	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");
}

removeHandles Inherited Method removeHandles(groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 4.25.

Removes a group of handles owned by the object.

Parameter

groupKey *

optional

A group key or an array or collection of group keys to remove.

Example

obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");

toJSON Method toJSON(){Object}

Converts an instance of this class to its ArcGIS portal JSON representation. See the Using fromJSON() guide topic for more information.

Returns

Type	Description
Object	The ArcGIS portal JSON representation of an instance of this class.