ArcGISFeature

An ArcGIS specific feature stored in an ArcGISFeatureTable. ArcGIS features are stored in ArcGIS specific data sources such as a GeodatabaseFeatureTable or ServiceFeatureTable. Since ArcGISFeature is a subclass of Feature, it contains a geometry that defines its location and shape, and a set of attributes that describe the real-world entity it represents.

In addition, ArcGISFeature objects can also contain:

• Feature attachments such as images or documents, that can be edited, updated or deleted.

• Feature subtypes that define different default values or domains for fields.

• The ability to relate this feature to another ArcGISFeature.

• Geometry that has m-values, which are typically used for linear referencing.

If you create a ServiceFeatureTable from the URL of a feature service, features in the table are initially in one of the following states:

• A minimum set of attributes are available in the table, and m-values are omitted. This is an optimization for faster rendering.

• All attributes defined by the service are available in the table, including m-values, which might be NaN.

The initial state of features is determined by the feature request mode of the table. For important details, see FeatureRequestMode.

By default, a query on ArcGISFeature objects in a minimum state returns them in the same state. To access all attributes (or the m-values) of features returned by a query, you must load the features. You can do one of the following:

• Call Loadable.load() on each feature.

• Call ServiceFeatureTable.loadOrRefreshFeatures(MutableListImpl) and pass a mutable array of the features to be loaded.

• Call ServiceFeatureTable.queryFeatures(QueryParameters, QueryFeatureFields) with the constant QueryFeatureFields.LoadAll, which returns all features in a fully loaded state.

For more information, see the class description for ServiceFeatureTable.