Association

// Utility network service url
const networkServiceUrl = "https://myserver.esri.com/server/rest/services/NapervilleElectric/UtilityNetworkServer";

// Define the QueryAssociationsParameters
const queryAssociationsParameters = new QueryAssociationsParameters({
  associationTypes: ["containment", "attachment", "junction-edge-from-connectivity"],
  elements: [
    {
      networkSourceId: 2,
      globalId: "{46B3FA19-2237-4D38-A7CF-AA34C3T40420}",
      objectId: 44,
      terminalId: 1,
      assetGroupCode: 1,
      assetTypeCode: 1
    },
    {
      networkSourceId: 9,
      globalId: "{321C0089-1165-42D9-K45B-ED91B1A40500}",
      objectId: 45,
      terminalId: 1,
      assetGroupCode: 13,
      assetTypeCode: 441
    }
 ]
});

// Query associations, and assign the query result to a variable of type QueryAssociationsResult
const queryAssociationsResult = await queryAssociations(networkServiceUrl, queryAssociationsParameters);

// Print out the first association
console.log(queryAssociationsResult.associations[0]);

Property Overview

Property Details

associationType String

The type of association. Associations that could be synthesized are attachment, connectivity or containment. There are also non-spatial associations that were introduced in schema version 4. Those will be added post 4.20

Possible Values:"attachment"|"connectivity"|"containment"

declaredClass Stringreadonly inherited

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

errorCode Number

Error code returned from the server for a failed associations query.

errorMessage String

Message returned from the server for a failed associations query.

fromNetworkElement NetworkElement

The from side network element of the association. Contains the globalid, network source, and terminal.

globalId String

The globalId (UUID) of the association record, uniquely identifes this association row.

isContentVisible Boolean

Specifies the content visibility on the map.

line Polyline

The synthesized polyline geometry created between the two network elements.

percentAlong Number

This double parameter of value of 0-1 indicates a percentage along the line of where the trace location is placed. Applicable to line features only.

Example

Line feature with objectId 100 with 2 midspan junctions (j1,j2). The line feature has 3 edge network elements
F-j1, j1-j2 and j2-T.

                                       OID=100
                               F------j1------j2------T

F-j1  (objectId=100, positionFrom=0, positionTo=0.33)
j1-j2 (objectId=100, positionFrom=0.33, positionTo=0.66)
j2-T  (objectId=100, positionFrom=0.66, positionTo=1)

When percentAlong is 0.5 (50%) the starting location will be placed on the middle edge (j1-j2)

                                       OID=100
                               F------j1---x--j2------T

When percentAlong is 0.1 (10%) the starting location will be placed on the first edge (F-j1)

                                       OID=100
                               F-x----j1------j2------T

status Number

Indicates the type of association a feature or object participates in, the role the network feature plays in the association relationship, and any properties that are set.

See also

• ArcGIS Pro: Association status attribute

toNetworkElement NetworkElement

The to side network element of the association. Contains the globalid, network source, and terminal.

Method Overview

Method Details

addHandles(handleOrHandles, groupKey)inherited

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 }
);

// Handle gets removed when the object is destroyed.
this.addHandles(handle);

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(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(groupKey){Boolean}inherited

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(groupKey)inherited

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(){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.