FieldIndex

//example of a field index on the `name` field
"fieldIndexes": [
  {
    "declaredClass": "esri.rest.knowledgeGraph.FieldIndex",
    "name": "esri__name_idx",
    "unique": true,
    "ascending": true,
    "description": "index on name field",
    "fieldNames": [
      "name"
    ]
  }
]

Property Overview

Property Details

ascending Boolean

Specifies if the field is indexed in ascending order. If false the field is indexed in descending order.

Default Value:true

declaredClass Stringreadonly inherited

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

description String

Description of the field.

fieldNames String[]

The ordered field names included in this index.

name String

The name of the field.

unique Boolean

Specifies if the values in the field are unique (no duplicate values).

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 }
);

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.

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");