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Showing content from https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-support-Relationship.html below:

Relationship | API Reference | ArcGIS Maps SDK for JavaScript 4.33

ESM: import Relationship from "@arcgis/core/layers/support/Relationship.js";

CDN: const Relationship = await $arcgis.import("@arcgis/core/layers/support/Relationship.js");

Class: @arcgis/core/layers/support/Relationship

Since: ArcGIS Maps SDK for JavaScript 4.7

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cardinality Property cardinality String

The cardinality which specifies the number of objects in the origin FeatureLayer related to the number of objects in the destination FeatureLayer. Please see the Desktop help for additional information on cardinality.

Possible Values:"one-to-one" |"one-to-many" |"many-to-many"

Since: ArcGIS Maps SDK for JavaScript 4.32 Relationship since 4.7, catalogId added at 4.32.

The globally unique identifier for the relationship. This property is only available on non-hosted feature services (referencing Enterprise geodatabases).

composite Property composite Boolean

Since: ArcGIS Maps SDK for JavaScript 4.16 Relationship since 4.7, composite added at 4.16.

Indicates whether the relationship is composite. In a composite relationship, a destination object cannot exist independently of its origin object.

declaredClass

Inherited

Property declaredClass Stringreadonly

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

The unique ID for the relationship. These ids for the relationships the FeatureLayer participates in are listed in the ArcGIS Services directory.

keyField Property keyField String

The field used to establish the relate within the FeatureLayer.

keyFieldInRelationshipTable Property keyFieldInRelationshipTable String

Since: ArcGIS Maps SDK for JavaScript 4.16 Relationship since 4.7, keyFieldInRelationshipTable added at 4.16.

The key field in an attributed relationship class table that matches the keyField. This is returned only for attributed relationships.

The name of the relationship.

relationshipTableId Property relationshipTableId Number

Since: ArcGIS Maps SDK for JavaScript 4.16 Relationship since 4.7, relationshipTableId added at 4.16.

The relationship table id.

Since: ArcGIS Maps SDK for JavaScript 4.16 Relationship since 4.7, role added at 4.16.

Indicates whether the table participating in the relationship is the origin or destination table.

Possible Values:"origin" |"destination"

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addHandles

Inherited

Method addHandles(handleOrHandles, groupKey)

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

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.

clone Method clone(){this}

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.

Returns

Type Description this A deep clone of the class instance that invoked this method.

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.

Returns

Type Description * | null | undefined Returns a new instance of this class.

hasHandles

Inherited

Method hasHandles(groupKey){Boolean}

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)

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");

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