Add features

View on GitHubSample viewer app

Add features to a feature layer.

Image of adding features

Use case

An end-user performing a survey may want to add features to the map during the course of their work.

How to use the sample

Click on a location on the map to add a feature at that location.

How it works

  1. Create and load a ServiceGeodatabase with a feature service URL.
  2. Get the ServiceFeatureTable from the service geodatabase.
  3. Create a FeatureLayer from the service feature table.
  4. Create a Feature with attributes and a location using the ServiceFeatureTable.
  5. Add the Feature to the ServiceFeatureTable.
  6. Apply edits to the ServiceGeodatabase by calling applyEditsAsync, which will upload the new feature to the online service.

Relevant API

  • Feature
  • FeatureEditResult
  • FeatureLayer
  • ServiceFeatureTable
  • ServiceGeodatabase

Tags

edit, feature, online service

Sample Code

AddFeaturesSample.java
Use dark colors for code blocksCopy
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
/*
 * Copyright 2017 Esri.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.esri.samples.add_features;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;

import javafx.application.Application;
import javafx.application.Platform;
import javafx.geometry.Point2D;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.input.MouseButton;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.concurrent.ListenableFuture;
import com.esri.arcgisruntime.data.Feature;
import com.esri.arcgisruntime.data.FeatureTableEditResult;
import com.esri.arcgisruntime.data.ServiceFeatureTable;
import com.esri.arcgisruntime.data.ServiceGeodatabase;
import com.esri.arcgisruntime.geometry.GeometryEngine;
import com.esri.arcgisruntime.geometry.Point;
import com.esri.arcgisruntime.layers.FeatureLayer;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.Viewpoint;
import com.esri.arcgisruntime.mapping.view.MapView;

public class AddFeaturesSample extends Application {

  private MapView mapView;

  private ServiceFeatureTable featureTable;

  private static final String SERVICE_LAYER_URL =
      "https://sampleserver6.arcgisonline.com/arcgis/rest/services/DamageAssessment/FeatureServer";

  @Override
  public void start(Stage stage) {

    try {
      // create stack pane and application scene
      StackPane stackPane = new StackPane();
      Scene scene = new Scene(stackPane);

      // set title, size, and add scene to stage
      stage.setTitle("Add Features Sample");
      stage.setWidth(800);
      stage.setHeight(700);
      stage.setScene(scene);
      stage.show();

      // authentication with an API key or named user is required to access basemaps and other location services
      String yourAPIKey = System.getProperty("apiKey");
      ArcGISRuntimeEnvironment.setApiKey(yourAPIKey);

      // create a map with the streets basemap style
      ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);

      // create a map view and set the map to it
      mapView = new MapView();
      mapView.setMap(map);

      // set a viewpoint on the map view
      mapView.setViewpoint(new Viewpoint(40, -95, 36978595));

      // create a service geodatabase from the service layer url and load it
      var serviceGeodatabase = new ServiceGeodatabase(SERVICE_LAYER_URL);
      serviceGeodatabase.addDoneLoadingListener(() -> {

        // create service feature table from the service geodatabase's table first layer
        featureTable = serviceGeodatabase.getTable(0);

        // create a feature layer from table
        var featureLayer = new FeatureLayer(featureTable);

        // add the layer to the ArcGISMap
        map.getOperationalLayers().add(featureLayer);
      });
      serviceGeodatabase.loadAsync();

      mapView.setOnMouseClicked(event -> {
        // check that the primary mouse button was clicked
        if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
          // create a point from where the user clicked
          Point2D point = new Point2D(event.getX(), event.getY());

          // create a map point from a point
          Point mapPoint = mapView.screenToLocation(point);

          // for a wrapped around map, the point coordinates include the wrapped around value
          // for a service in projected coordinate system, this wrapped around value has to be normalized
          Point normalizedMapPoint = (Point) GeometryEngine.normalizeCentralMeridian(mapPoint);

          // add a new feature to the service feature table
          addFeature(normalizedMapPoint, featureTable);
        }
      });

      // add the map view to stack pane
      stackPane.getChildren().addAll(mapView);

    } catch (Exception e) {
      // on any error, display the stack trace
      e.printStackTrace();
    }
  }

  /**
   * Adds a new Feature to a ServiceFeatureTable and applies the changes to the
   * server.
   *
   * @param mapPoint location to add feature
   * @param featureTable service feature table to add feature
   */
  private void addFeature(Point mapPoint, ServiceFeatureTable featureTable) {

    // create default attributes for the feature
    Map<String, Object> attributes = new HashMap<>();
    attributes.put("typdamage", "Destroyed");
    attributes.put("primcause", "Earthquake");

    // creates a new feature using default attributes and point
    Feature feature = featureTable.createFeature(attributes, mapPoint);

    // check if feature can be added to feature table
    if (featureTable.canAdd()) {
      // add the new feature to the feature table and to server
      featureTable.addFeatureAsync(feature).addDoneListener(() -> applyEdits(featureTable));
    } else {
      displayMessage(null, "Cannot add a feature to this feature table");
    }
  }

  /**
   * Sends any edits on the ServiceFeatureTable to the server.
   *
   * @param featureTable service feature table
   */
  private void applyEdits(ServiceFeatureTable featureTable) {

    // apply the changes to the server
    ListenableFuture<List<FeatureTableEditResult>> editResult = featureTable.getServiceGeodatabase().applyEditsAsync();
    editResult.addDoneListener(() -> {
      try {
        List<FeatureTableEditResult> edits = editResult.get();
        // check if the server edit was successful
        if (edits != null && edits.size() > 0) {
          var featureEditResult = edits.get(0).getEditResult().get(0);
          if (!featureEditResult.hasCompletedWithErrors()) {
            displayMessage(null, "Feature successfully added");
          } else {
            throw featureEditResult.getError();
          }
        }
      } catch (InterruptedException | ExecutionException e) {
        displayMessage("Exception applying edits on server", e.getCause().getMessage());
      }
    });
  }

  /**
   * Shows a message in an alert dialog.
   *
   * @param title title of alert
   * @param message message to display
   */
  private void displayMessage(String title, String message) {

    Platform.runLater(() -> {
      Alert dialog = new Alert(AlertType.INFORMATION);
      dialog.initOwner(mapView.getScene().getWindow());
      dialog.setHeaderText(title);
      dialog.setContentText(message);
      dialog.showAndWait();
    });
  }

  /**
   * Stops and releases all resources used in application.
   */
  @Override
  public void stop() {

    if (mapView != null) {
      mapView.dispose();
    }
  }

  /**
   * Opens and runs application.
   *
   * @param args arguments passed to this application
   */
  public static void main(String[] args) {

    Application.launch(args);
  }

}

Your browser is no longer supported. Please upgrade your browser for the best experience. See our browser deprecation post for more details.