Module com.esri.arcgisruntime
Package com.esri.arcgisruntime.tasks.geodatabase

Class GeodatabaseSyncTask

java.lang.Object
com.esri.arcgisruntime.tasks.geodatabase.GeodatabaseSyncTask
All Implemented Interfaces:
ApiKeyResource, RemoteResource, Loadable
public final class GeodatabaseSyncTask extends Object implements Loadable, RemoteResource, ApiKeyResource
A task to generate and synchronize a mobile geodatabase with a sync-enabled ArcGIS feature service.

Mobile geodatabases are designed for querying and viewing feature data when your app is offline. While offline, users can edit a mobile geodatabase locally and later synchronize changes with its feature service, assuming the associated service supports synchronization. While offline, the geodatabase keeps track of all local edits. When you synchronize the geodatabase with the service, the service receives the geodatabase's local edits, and the geodatabase receives the service's remote edits.

This task allows you to build apps that can download data from an ArcGIS feature service that has been enabled for offline use into a geodatabase. Here are the typical steps to download data from sync-enabled ArcGIS feature service into a geodatabase file on your device:

The geodatabase may contain feature layers, annotation layers, related records, non-spatial tables, and attachments. You can create, update, or delete this data according to the capabilities of the source feature service. The geodatabase is registered with the online feature service so that you can synchronize their data when a network connection to the feature service is available. Your app business logic will determine whether the synchronization just downloads changes from the feature service (SyncGeodatabaseParameters.SyncDirection.DOWNLOAD), just uploads changes made to the geodatabase (SyncGeodatabaseParameters.SyncDirection.UPLOAD), or uploads and downloads changes (SyncGeodatabaseParameters.SyncDirection.BIDIRECTIONAL). Here are the typical steps to synchronize data between the geodatabase file and the source feature service:

When the geodatabase is no longer needed, you should unregister it to clean up the tracking metadata stored on the feature service. Unregistered geodatabases cannot be re-registered. Here are the steps to unregister a geodatabase:

There is another option for working with mobile geodatabases. You can place a copy of a sync-enabled geodatabase onto your device and register it with the associated service using registerSyncEnabledGeodatabaseAsync(Geodatabase). This will give the geodatabase its own replica ID and you will be able to synchronize the geodatabase with its service.

If you want to download a portion of a web map and its content, instead of individual ArcGIS feature services, consider using the OfflineMapTask. You can then synchronize all of the map's geodatabase content together using the OfflineMapSyncTask.

Since:
100.0.0

  • Property Details

  • Constructor Details

    • GeodatabaseSyncTask

      public GeodatabaseSyncTask(String url)
      Creates a geodatabase sync task object using a URL to a sync-enabled ArcGIS feature service.
      Parameters:
      url - a URL to an ArcGIS feature service with the sync capability enabled
      Throws:
      IllegalArgumentException - if url is null or empty
      Since:
      100.0.0

  • Method Details

    • setCredential

      public void setCredential(Credential credential)
      Sets the credential used to authenticate the user with this task.
      Specified by:
      setCredential in interface RemoteResource
      Parameters:
      credential - the credential used to authenticate the user with this task
      Since:
      100.0.0

    • getCredential

      public Credential getCredential()
      Gets the credential used to authenticate the user with this task.
      Specified by:
      getCredential in interface RemoteResource
      Returns:
      the credential, or null if there is none
      Since:
      100.0.0

    • setRequestConfiguration

      public void setRequestConfiguration(RequestConfiguration requestConfiguration)
      Sets configuration parameters used for network requests sent using this task. The global RequestConfiguration is used if no RequestConfiguration is set.
      Specified by:
      setRequestConfiguration in interface RemoteResource
      Parameters:
      requestConfiguration - object containing the parameters to use
      Since:
      100.0.0

    • getRequestConfiguration

      public RequestConfiguration getRequestConfiguration()
      Gets the RequestConfiguration object in use by this task.
      Specified by:
      getRequestConfiguration in interface RemoteResource
      Returns:
      the RequestConfiguration object, or null if none has been set
      Since:
      100.0.0
      See Also:

    • getUri

      public String getUri()
      Gets the URL of the ArcGIS feature service.
      Specified by:
      getUri in interface RemoteResource
      Returns:
      the URL of the feature service
      Since:
      100.0.0

    • getFeatureServiceInfo

      public ArcGISFeatureServiceInfo getFeatureServiceInfo()
      Metadata about the ArcGIS feature service.

      This information is available when the task is loaded.

      Returns:
      an ArcGISFeatureServiceInfo object for the feature service
      Since:
      100.0.0

    • createDefaultGenerateGeodatabaseParametersAsync

      public ListenableFuture<GenerateGeodatabaseParameters> createDefaultGenerateGeodatabaseParametersAsync(Geometry extent)
      Executes an asynchronous operation to create default parameters to generate and download a geodatabase using the GenerateGeodatabaseJob.

      This populates the parameters with values that match the feature service. For example, if the service does not support SyncModel.PER_LAYER then SyncModel.PER_GEODATABASE will be used and all layers from the service will be included.

      Attachments are included by default, but related tables/layers are not included.

      Output features are in the spatial reference of the given extent.

      Parameters:
      extent - the extent of the data to be included in the generated geodatabase.
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation. Calling get() on the returned future may throw an ExecutionException with its cause set to:
      Throws:
      NullPointerException - if extent is null
      Since:
      100.0.0
      See Also:

    • createDefaultSyncGeodatabaseParametersAsync

      public ListenableFuture<SyncGeodatabaseParameters> createDefaultSyncGeodatabaseParametersAsync(Geodatabase geodatabase)
      Executes an asynchronous operation to create default parameters to synchronize a geodatabase using the SyncGeodatabaseJob.

      This populates the parameters with values that match the geodatabase sync task's feature service and the geodatabase.

      For a geodatabase with SyncModel.PER_LAYER, all geodatabase layers will be included. If the service is read-only then the sync direction will be SyncGeodatabaseParameters.SyncDirection.DOWNLOAD. Otherwise, the sync direction will be SyncGeodatabaseParameters.SyncDirection.BIDIRECTIONAL.

      Parameters:
      geodatabase - the geodatabase to be synchronized
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation. Calling get() on the returned future may throw an ExecutionException with its cause set to:
      Throws:
      IllegalArgumentException - if geodatabase is null
      Since:
      100.0.0
      See Also:

    • createDefaultSyncGeodatabaseParametersAsync

      public ListenableFuture<SyncGeodatabaseParameters> createDefaultSyncGeodatabaseParametersAsync(Geodatabase geodatabase, SyncGeodatabaseParameters.SyncDirection syncDirection)
      Executes an asynchronous operation to create a set of default parameters that can be used to synchronize a geodatabase with the service using the given sync direction. The result is a SyncGeodatabaseParameters object.

      This populates the parameters with values that match the geodatabase sync task's feature service and the geodatabase. For a geodatabase with SyncModel.PER_LAYER then all geodatabase layers will be included.

      A service is editable if it has capabilities that include any of create, update or delete. In this case both SyncGeodatabaseParameters.SyncDirection.BIDIRECTIONAL and SyncGeodatabaseParameters.SyncDirection.UPLOAD are supported sync directions. Alternatively, a service that does not have create, update or delete capability is considered read-only and only SyncGeodatabaseParameters.SyncDirection.DOWNLOAD will be supported.

      If the given sync direction is not compatible with the geodatabase sync task's feature service or the geodatabase is not sync-enabled, the returned task will fail.

      Parameters:
      geodatabase - the geodatabase to be synchronized
      syncDirection - the sync direction to use when syncing the Geodatabase
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation. Calling get() on the returned future may throw an ExecutionException with its cause set to:
      Throws:
      IllegalArgumentException - if geodatabase or syncDirection is null
      Since:
      100.4.0

    • generateGeodatabase

      public GenerateGeodatabaseJob generateGeodatabase(GenerateGeodatabaseParameters params, String fileNameWithPath)
      Returns a job to generate and download a geodatabase from an ArcGIS feature service.
      Parameters:
      params - the parameters to be used for the generate geodatabase operation
      fileNameWithPath - full path, including filename, to which to write the geodatabase
      Returns:
      a GenerateGeodatabaseJob that will generate the geodatabase. The result is a Geodatabase object if the job completed successfully. Note you must call Job.start() to start the Job.
      Throws:
      IllegalArgumentException - if params is null, or if fileNameWithPath is null or empty
      Since:
      100.4.0

    • syncGeodatabase

      public SyncGeodatabaseJob syncGeodatabase(SyncGeodatabaseParameters.SyncDirection syncDirection, boolean rollbackOnFailure, Geodatabase geodatabase)
      Creates a SyncGeodatabaseJob to synchronize a geodatabase back to its source ArcGIS feature service using the specified sync direction and a rollback on failure boolean value.

      If the given sync direction is not compatible with the geodatabase sync task's feature service, the returned job will fail.

      Synchronization can include sending feature edits made locally and retrieving feature edits made on the server. Only changes are sent/received during this process to ensure only the minimum required data is transferred.

      Parameters:
      syncDirection - sync direction to use when syncing the geodatabase
      rollbackOnFailure - true to roll back (not apply) all the changes to the service and/or geodatabase if the job fails, false to accept the changes up until the point when the job fails
      geodatabase - the geodatabase to be synchronized
      Returns:
      a SyncGeodatabaseJob that will synchronize the geodatabase. The result is a List (may be empty) of SyncLayerResult objects. Note you must call Job.start() to start the Job.
      Throws:
      IllegalArgumentException - if syncDirection or geodatabase are null
      Since:
      100.4.0

    • syncGeodatabase

      public SyncGeodatabaseJob syncGeodatabase(SyncGeodatabaseParameters params, Geodatabase geodatabase)
      Creates a SyncGeodatabaseJob to synchronize a geodatabase back to its source ArcGIS feature service.

      Synchronization can include sending feature edits made locally and retrieving feature edits made on the server. Only changes are sent/received during this process to ensure only the minimum required data is transferred.

      Parameters:
      params - the parameters to be used for the synchronize operation
      geodatabase - the geodatabase to be synchronized
      Returns:
      a SyncGeodatabaseJob that will synchronize the geodatabase. The result is a List (may be empty) of SyncLayerResult objects. Note you must call Job.start() to start the Job.
      Throws:
      IllegalArgumentException - if params or geodatabase is null
      Since:
      100.4.0

    • unregisterGeodatabaseAsync

      public ListenableFuture<Void> unregisterGeodatabaseAsync(Geodatabase geodatabase)
      Executes an asynchronous operation to unregister a geodatabase from its source ArcGIS feature service using the geodatabase's sync ID. This removes the services replica id.

      After unregistering a geodatabase it can no longer be synced back to the service. This is often used prior to deleting a local geodatabase.

      This operation is not related to registerSyncEnabledGeodatabaseAsync(Geodatabase), which is for registering copies of a sync-enabled geodatabase.

      Parameters:
      geodatabase - the geodatabase to be unregistered
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation. Calling get() on the returned future may throw an ExecutionException with its cause set to:
      Throws:
      IllegalArgumentException - if geodatabase is null
      Since:
      100.0.0

    • unregisterGeodatabaseAsync

      public ListenableFuture<Void> unregisterGeodatabaseAsync(UUID syncId)
      Executes an asynchronous operation to unregister a geodatabase from its source ArcGIS feature service using the geodatabase's sync ID. This removes the services replica id.

      Note that this overload uses the geodatabase's sync ID rather than a reference to the geodatabase itself.

      This is commonly used to enable cleanup of the service after the local geodatabase has already been deleted. See Geodatabase.getSyncId(). After unregistering a geodatabase it can no longer be synced back to the service.

      This operation is not related to registerSyncEnabledGeodatabaseAsync(Geodatabase), which is for registering copies of a sync-enabled geodatabase.

      Parameters:
      syncId - the syncID of geodatabase to unregister
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation. Calling get() on the returned future may throw an ExecutionException with its cause set to:
      Throws:
      IllegalArgumentException - if syncID is null
      Since:
      100.6.0

    • registerSyncEnabledGeodatabaseAsync

      public ListenableFuture<Void> registerSyncEnabledGeodatabaseAsync(Geodatabase geodatabase)
      Executes an asynchronous operation to register a copy of a sync-enabled geodatabase with an ArcGIS feature service to allow the copy to sync changes.

      This method is typically used as part of services pattern workflow, sometimes known as a pre-planned workflow. A sync-enabled geodatabase is generated centrally and not modified or synced. Copies of this original geodatabase are distributed and loaded onto each user's device. The copy must first be registered with the service to allow the server to identify changes in subsequent sync operations. One of the main benefits of this workflow is a reduction in server load to generate geodatabases for many clients. It is important not to sync the copy before registering to ensure the server can maintain consistent state on each copy. This operation is not the opposite of unregisterGeodatabaseAsync(Geodatabase) which is used to remove a geodatabase from the service prior to deletion.

      Parameters:
      geodatabase - the geodatabase to register
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation. Calling get() on the returned future may throw an ExecutionException with its cause set to:
      Throws:
      IllegalArgumentException - if geodatabase is null
      Since:
      100.0.0

    • importDeltaAsync

      public static ListenableFuture<List<SyncLayerResult>> importDeltaAsync(Geodatabase geodatabase, String inputPath)
      Executes an asynchronous operation to import a geodatabase delta and apply it to the given geodatabase. The result is a list of SyncLayerResult objects.

      A delta geodatabase contains the changes that have occurred since a mobile replica Geodatabase was last-synchronized with the feature service. See Synchronize Replica.

      Parameters:
      geodatabase - the geodatabase to apply a delta to
      inputPath - the path and filename to import the delta from
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation.
      Throws:
      IllegalArgumentException - if geodatabase or inputPath is null, or if inputPath is empty
      Since:
      100.3.0
      See Also:

    • getApiKey

      public String getApiKey()
      Description copied from interface: ApiKeyResource
      Gets the API key to access API key enabled services and resources in ArcGIS Online.

      An API key is a unique key used to authorize access to specific services and resources in ArcGIS Online. It is also used to monitor access to those services. An API key is created and managed in the ArcGIS developer dashboard and is tied to a specific ArcGIS account.

      In addition to setting an API key at a global level for your application using ArcGISRuntimeEnvironment.setApiKey(String), you can call ApiKeyResource.setApiKey(String) on any class that implements ApiKeyResource. When you call setApiKey(String) on an APIKeyResource, it will override the default key at the global level (the key returned by ArcGISRuntimeEnvironment.getApiKey(), in other words), enabling more granular usage telemetry and management for ArcGIS Online resources used by your app.

      Classes that expose an API key property by implementing APIKeyResource include:

      Specified by:
      getApiKey in interface ApiKeyResource
      Returns:
      the API key to access API key enabled services and resources in ArcGIS Online
      See Also:

    • setApiKey

      public void setApiKey(String apiKey)
      Description copied from interface: ApiKeyResource
      Sets the API key to access API key enabled services and resources in ArcGIS Online.

      An API key is a unique key used to authorize access to specific services and resources in ArcGIS Online. It is also used to monitor access to those services. An API key is created and managed in the ArcGIS developer dashboard and is tied to a specific ArcGIS account.

      In addition to setting an API key at a global level for your application using ArcGISRuntimeEnvironment.setApiKey(String), you can call setApiKey(String) on any class that implements ApiKeyResource. When you call setApiKey(String) on an APIKeyResource, it will override the default key at the global level (the key returned by ArcGISRuntimeEnvironment.getApiKey(), in other words), enabling more granular usage telemetry and management for ArcGIS Online resources used by your app.

      Classes that expose an API key property by implementing APIKeyResource include:

      Specified by:
      setApiKey in interface ApiKeyResource
      Parameters:
      apiKey - the API key to access API key enabled services and resources in ArcGIS Online
      See Also:

    • exportDeltaAsync

      public static ListenableFuture<Boolean> exportDeltaAsync(Geodatabase geodatabase, String outputPath)
      Executes an asynchronous operation to generate an upload delta geodatabase file containing all the changes since the last sync.

      A delta geodatabase contains the changes that have occurred since a mobile replica Geodatabase was last synchronized with the feature service. See Synchronize Replica for an overview of the delta files used in synchronization. An "upload" delta geodatabase contains the local edits, performed on the user's device, to be sent to the originating feature service.

      When you run this task, any local edits in the Geodatabase will be exported to the specified output path. The output path should include the full path and file name (ending in ".geodatabase") for the export.

      The delta file created by this method is not sent to the server and has no impact on any subsequent sync job. You can call this method repeatedly without affecting the state of the local geodatabase.

      The task returned by this method has a boolean result that indicates whether or not a delta geodatabase was created.

      You should not execute more than one sync on a particular geodatabase at the same time. This includes any operations that export or import deltas from the local Geodatabase:

      Parameters:
      geodatabase - the geodatabase to generate a delta from
      outputPath - the path and filename to save the generated delta to
      Returns:
      a ListenableFuture for tracking when the operation is done and getting the result; also allows cancellation. The result is a Boolean indicating whether a delta was generated or not.
      Throws:
      IllegalArgumentException - if geodatabase is null
      IllegalArgumentException - if outputPath is null or empty
      Since:
      100.10.0
      See Also:

    • getLoadStatus

      public LoadStatus getLoadStatus()
      Gets the value of the loadStatus property.
      Specified by:
      getLoadStatus in interface Loadable
      Property description:
      Returns:
      the value of the loadStatus property
      See Also:

    • getLoadError

      public ArcGISRuntimeException getLoadError()
      Gets the value of the loadError property.
      Specified by:
      getLoadError in interface Loadable
      Property description:
      Returns:
      the value of the loadError property
      See Also:

    • cancelLoad

      public void cancelLoad()
      Description copied from interface: Loadable
      Cancels loading metadata for the object.

      Cancels loading the metadata if the object is loading, and always invokes the done loading listener.

      A load operation that is in progress (LoadStatus.LOADING state) can be cancelled by calling this method and the resource will transition from LoadStatus.LOADING to LoadStatus.FAILED_TO_LOAD state. If the load operation was successfully cancelled, a CancellationException will be returned from Loadable.getLoadError().

      Cancellation should be used carefully because all enqueued done loading listeners for that resource instance will get invoked with an error stating that the operation was cancelled. Thus, one component in the application can cancel the load operation initiated by other components.

      This method does nothing if the resource is not in LoadStatus.LOADING state.

      Specified by:
      cancelLoad in interface Loadable

    • loadAsync

      public void loadAsync()
      Description copied from interface: Loadable
      Loads the metadata of the loadable resource asynchronously.

      The load status changes from LoadStatus.NOT_LOADED to LoadStatus.LOADING. A listener can be added via Loadable.addDoneLoadingListener(java.lang.Runnable) that is invoked upon completion of the asynchronous load operation.

      If the load operation completes successfully, the load status will be LoadStatus.LOADED, which means the resource has loaded its metadata.

      If the load operation failed, the load status will be LoadStatus.FAILED_TO_LOAD and the error can be retrieved by calling Loadable.getLoadError().

      This method can be called concurrently and repeatedly, but only one attempt is ever made to perform the load operation. If a load operation is already in progress (LoadStatus.LOADING state) when loadAsync is called, it simply piggy-backs on the outstanding operation and the done loading listener added to the loadable resource is enqueued to be invoked when that operation completes. If the operation has already completed (LoadStatus.LOADED or LoadStatus.FAILED_TO_LOAD state) when loadAsync is called, the done loading listener is immediately invoked when added to the loadable resource.

      If a loadable resource has failed to load, calling loadAsync on it subsequently will not change its state. The done loading listener will be invoked immediately when added to the loadable resource. In order to retry loading the resource, Loadable.retryLoadAsync() needs to be used.

      A load operation that is in progress (LoadStatus.LOADING state) can be cancelled by calling Loadable.cancelLoad().

      Specified by:
      loadAsync in interface Loadable

    • retryLoadAsync

      public void retryLoadAsync()
      Description copied from interface: Loadable
      Loads or retries loading metadata for the object asynchronously.

      Will retry loading the metadata if the object's load status is LoadStatus.FAILED_TO_LOAD. Will load the object if it is not loaded. Will not retry to load the object if the object is loaded.

      For more details on the load process see Loadable.loadAsync().

      Specified by:
      retryLoadAsync in interface Loadable

    • addDoneLoadingListener

      public void addDoneLoadingListener(Runnable listener)
      Description copied from interface: Loadable
      Adds a listener to the loadable resource that is invoked when loading has completed.

      The listener may be added at any point, whether the loadable resource has already completed loading or not.

      • For resources that are not loaded when the listener is added (LoadStatus is NOT_LOADED or LOADING): When the resource completes loading, the listener will be invoked on the UI thread if it is added from the UI thread, otherwise it is not guaranteed on which thread the listener is invoked.
      • For resources that are already loaded when the listener is added (LoadStatus is LOADED or FAILED_TO_LOAD): The listener will be called immediately, on the current thread.

      Alternatively, to be notified when there is any change in the load status, add a listener to the Loadable.loadStatusProperty() instead.

      Specified by:
      addDoneLoadingListener in interface Loadable
      Parameters:
      listener - a Runnable that is invoked upon completion of the load operation

    • removeDoneLoadingListener

      public boolean removeDoneLoadingListener(Runnable listener)
      Description copied from interface: Loadable
      Removes a done loading listener from the loadable resource.
      Specified by:
      removeDoneLoadingListener in interface Loadable
      Parameters:
      listener - the listener to be removed
      Returns:
      true if the listener was removed, otherwise false

    • addLoadStatusChangedListener

      public void addLoadStatusChangedListener(LoadStatusChangedListener listener)
      Description copied from interface: Loadable
      Adds a LoadStatusChangedListener to the loadable resource that is invoked whenever the load status changes.

      Adding this listener on the UI thread will cause it to be invoked on the UI thread, otherwise it is not guaranteed on which thread the listener is invoked.

      The listener will not be called if added to a loadable resource that has already completed loading. To be notified when a loadable resource has completed loading, including if the resource is already loaded when the listener is added, use the Loadable.addDoneLoadingListener(Runnable) method.

      Specified by:
      addLoadStatusChangedListener in interface Loadable
      Parameters:
      listener - the LoadStatusChangedListener to be added

    • removeLoadStatusChangedListener

      public boolean removeLoadStatusChangedListener(LoadStatusChangedListener listener)
      Description copied from interface: Loadable
      Removes a LoadStatusChangedListener from the loadable resource.
      Specified by:
      removeLoadStatusChangedListener in interface Loadable
      Parameters:
      listener - the LoadStatusChangedListener to be removed
      Returns:
      true if the listener was removed, otherwise false

    • loadStatusProperty

      public ReadOnlyObjectProperty<LoadStatus> loadStatusProperty()
      Description copied from interface: Loadable
      The load status.
      Specified by:
      loadStatusProperty in interface Loadable
      Returns:
      the loadStatus property
      See Also:

    • loadErrorProperty

      public ReadOnlyObjectProperty<ArcGISRuntimeException> loadErrorProperty()
      Description copied from interface: Loadable
      The load error.
      Specified by:
      loadErrorProperty in interface Loadable
      Returns:
      the loadError property
      See Also: