Class FirestoreClient (3.20.0)

public class FirestoreClient implements BackgroundResource

Service Description: The Cloud Firestore service.

Cloud Firestore is a fast, fully managed, serverless, cloud-native NoSQL document database that simplifies storing, syncing, and querying data for your mobile, web, and IoT apps at global scale. Its client libraries provide live synchronization and offline support, while its security features and integrations with Firebase and Google Cloud Platform accelerate building truly serverless apps.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   GetDocumentRequest request =
       GetDocumentRequest.newBuilder()
           .setName("name3373707")
           .setMask(DocumentMask.newBuilder().build())
           .build();
   Document response = firestoreClient.getDocument(request);
 }

Note: close() needs to be called on the FirestoreClient object to clean up resources such as threads. In the example above, try-with-resources is used, which automatically calls close().

Methods
Method	Description	Method Variants
GetDocument	Gets a single document.	Request object method variants only take one parameter, a request object, which must be constructed before the call. getDocument(GetDocumentRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. getDocumentCallable()
ListDocuments	Lists documents.	Request object method variants only take one parameter, a request object, which must be constructed before the call. listDocuments(ListDocumentsRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. listDocumentsPagedCallable() listDocumentsCallable()
UpdateDocument	Updates or inserts a document.	Request object method variants only take one parameter, a request object, which must be constructed before the call. updateDocument(UpdateDocumentRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. updateDocument(Document document, DocumentMask updateMask) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. updateDocumentCallable()
DeleteDocument	Deletes a document.	Request object method variants only take one parameter, a request object, which must be constructed before the call. deleteDocument(DeleteDocumentRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. deleteDocument(String name) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. deleteDocumentCallable()
BatchGetDocuments	Gets multiple documents. Documents returned by this method are not guaranteed to be returned in the same order that they were requested.	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. batchGetDocumentsCallable()
BeginTransaction	Starts a new transaction.	Request object method variants only take one parameter, a request object, which must be constructed before the call. beginTransaction(BeginTransactionRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. beginTransaction(String database) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. beginTransactionCallable()
Commit	Commits a transaction, while optionally updating documents.	Request object method variants only take one parameter, a request object, which must be constructed before the call. commit(CommitRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. commit(String database, List<Write> writes) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. commitCallable()
Rollback	Rolls back a transaction.	Request object method variants only take one parameter, a request object, which must be constructed before the call. rollback(RollbackRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. rollback(String database, ByteString transaction) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. rollbackCallable()
RunQuery	Runs a query.	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. runQueryCallable()
RunAggregationQuery	Runs an aggregation query. Rather than producing Document results like Firestore.RunQuery, this API allows running an aggregation to produce a series of AggregationResult server-side. High-Level Example: `<code><code> -- Return the number of documents in table given a filter. SELECT COUNT() FROM ( SELECT FROM k where a = true ); </code></code>`	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. runAggregationQueryCallable()
PartitionQuery	Partitions a query by returning partition cursors that can be used to run the query in parallel. The returned partition cursors are split points that can be used by RunQuery as starting/end points for the query results.	Request object method variants only take one parameter, a request object, which must be constructed before the call. partitionQuery(PartitionQueryRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. partitionQueryPagedCallable() partitionQueryCallable()
Write	Streams batches of document updates and deletes, in order. This method is only available via gRPC or WebChannel (not REST).	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. writeCallable()
Listen	Listens to changes. This method is only available via gRPC or WebChannel (not REST).	Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. listenCallable()
ListCollectionIds	Lists all the collection IDs underneath a document.	Request object method variants only take one parameter, a request object, which must be constructed before the call. listCollectionIds(ListCollectionIdsRequest request) "Flattened" method variants have converted the fields of the request object into function parameters to enable multiple ways to call the same method. listCollectionIds(String parent) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. listCollectionIdsPagedCallable() listCollectionIdsCallable()
BatchWrite	Applies a batch of write operations. The BatchWrite method does not apply the write operations atomically and can apply them out of order. Method does not allow more than one write per document. Each write succeeds or fails independently. See the BatchWriteResponse for the success status of each write. If you require an atomically applied set of writes, use Commit instead.	Request object method variants only take one parameter, a request object, which must be constructed before the call. batchWrite(BatchWriteRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. batchWriteCallable()
CreateDocument	Creates a new document.	Request object method variants only take one parameter, a request object, which must be constructed before the call. createDocument(CreateDocumentRequest request) Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service. createDocumentCallable()

See the individual methods for example code.

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parse method to extract the individual identifiers contained within names that are returned.

This class can be customized by passing in a custom instance of FirestoreSettings to create(). For example:

To customize credentials:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 FirestoreSettings firestoreSettings =
     FirestoreSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 FirestoreClient firestoreClient = FirestoreClient.create(firestoreSettings);

To customize the endpoint:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 FirestoreSettings firestoreSettings =
     FirestoreSettings.newBuilder().setEndpoint(myEndpoint).build();
 FirestoreClient firestoreClient = FirestoreClient.create(firestoreSettings);

To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over the wire:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 FirestoreSettings firestoreSettings = FirestoreSettings.newHttpJsonBuilder().build();
 FirestoreClient firestoreClient = FirestoreClient.create(firestoreSettings);

Please refer to the GitHub repository's samples for more quickstart code snippets.

Inheritance

java.lang.Object > FirestoreClient

Implements

BackgroundResource

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

create()

public static final FirestoreClient create()

Constructs an instance of FirestoreClient with default settings.

Returns
Type	Description
`FirestoreClient`

Exceptions
Type	Description
`IOException`

create(FirestoreSettings settings)

public static final FirestoreClient create(FirestoreSettings settings)

Constructs an instance of FirestoreClient, using the given settings. The channels are created based on the settings passed in, or defaults for any settings that are not set.

Parameter
Name	Description
`settings`	`FirestoreSettings`

Returns
Type	Description
`FirestoreClient`

Exceptions
Type	Description
`IOException`

create(FirestoreStub stub)

public static final FirestoreClient create(FirestoreStub stub)

Constructs an instance of FirestoreClient, using the given stub for making calls. This is for advanced usage - prefer using create(FirestoreSettings).

Parameter
Name	Description
`stub`	`FirestoreStub`

Returns
Type	Description
`FirestoreClient`

Constructors

FirestoreClient(FirestoreSettings settings)

protected FirestoreClient(FirestoreSettings settings)

Constructs an instance of FirestoreClient, using the given settings. This is protected so that it is easy to make a subclass, but otherwise, the static factory methods should be preferred.

Parameter
Name	Description
`settings`	`FirestoreSettings`

FirestoreClient(FirestoreStub stub)

protected FirestoreClient(FirestoreStub stub)

Parameter
Name	Description
`stub`	`FirestoreStub`

Methods

awaitTermination(long duration, TimeUnit unit)

public boolean awaitTermination(long duration, TimeUnit unit)

Parameters
Name	Description
`duration`	`long`
`unit`	`TimeUnit`

Returns
Type	Description
`boolean`

Exceptions
Type	Description
`InterruptedException`

batchGetDocumentsCallable()

public final ServerStreamingCallable<BatchGetDocumentsRequest,BatchGetDocumentsResponse> batchGetDocumentsCallable()

Gets multiple documents.

Documents returned by this method are not guaranteed to be returned in the same order that they were requested.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   BatchGetDocumentsRequest request =
       BatchGetDocumentsRequest.newBuilder()
           .setDatabase("database1789464955")
           .addAllDocuments(new ArrayList<String>())
           .setMask(DocumentMask.newBuilder().build())
           .build();
   ServerStream<BatchGetDocumentsResponse> stream =
       firestoreClient.batchGetDocumentsCallable().call(request);
   for (BatchGetDocumentsResponse response : stream) {
     // Do something when a response is received.
   }
 }

Returns
Type	Description
`ServerStreamingCallable<BatchGetDocumentsRequest,BatchGetDocumentsResponse>`

batchWrite(BatchWriteRequest request)

public final BatchWriteResponse batchWrite(BatchWriteRequest request)

Applies a batch of write operations.

The BatchWrite method does not apply the write operations atomically and can apply them out of order. Method does not allow more than one write per document. Each write succeeds or fails independently. See the BatchWriteResponse for the success status of each write.

If you require an atomically applied set of writes, use Commit instead.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   BatchWriteRequest request =
       BatchWriteRequest.newBuilder()
           .setDatabase("database1789464955")
           .addAllWrites(new ArrayList<Write>())
           .putAllLabels(new HashMap<String, String>())
           .build();
   BatchWriteResponse response = firestoreClient.batchWrite(request);
 }

Parameter
Name	Description
`request`	`BatchWriteRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`BatchWriteResponse`

batchWriteCallable()

public final UnaryCallable<BatchWriteRequest,BatchWriteResponse> batchWriteCallable()

Applies a batch of write operations.

If you require an atomically applied set of writes, use Commit instead.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   BatchWriteRequest request =
       BatchWriteRequest.newBuilder()
           .setDatabase("database1789464955")
           .addAllWrites(new ArrayList<Write>())
           .putAllLabels(new HashMap<String, String>())
           .build();
   ApiFuture<BatchWriteResponse> future =
       firestoreClient.batchWriteCallable().futureCall(request);
   // Do something.
   BatchWriteResponse response = future.get();
 }

Returns
Type	Description
`UnaryCallable<BatchWriteRequest,BatchWriteResponse>`

beginTransaction(BeginTransactionRequest request)

public final BeginTransactionResponse beginTransaction(BeginTransactionRequest request)

Starts a new transaction.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   BeginTransactionRequest request =
       BeginTransactionRequest.newBuilder()
           .setDatabase("database1789464955")
           .setOptions(TransactionOptions.newBuilder().build())
           .build();
   BeginTransactionResponse response = firestoreClient.beginTransaction(request);
 }

Parameter
Name	Description
`request`	`BeginTransactionRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`BeginTransactionResponse`

beginTransaction(String database)

public final BeginTransactionResponse beginTransaction(String database)

Starts a new transaction.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   String database = "database1789464955";
   BeginTransactionResponse response = firestoreClient.beginTransaction(database);
 }

Parameter
Name	Description
`database`	`String` Required. The database name. In the format: `projects/{project_id}/databases/{database_id}`.

Returns
Type	Description
`BeginTransactionResponse`

beginTransactionCallable()

public final UnaryCallable<BeginTransactionRequest,BeginTransactionResponse> beginTransactionCallable()

Starts a new transaction.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   BeginTransactionRequest request =
       BeginTransactionRequest.newBuilder()
           .setDatabase("database1789464955")
           .setOptions(TransactionOptions.newBuilder().build())
           .build();
   ApiFuture<BeginTransactionResponse> future =
       firestoreClient.beginTransactionCallable().futureCall(request);
   // Do something.
   BeginTransactionResponse response = future.get();
 }

Returns
Type	Description
`UnaryCallable<BeginTransactionRequest,BeginTransactionResponse>`

close()

public final void close()

commit(CommitRequest request)

public final CommitResponse commit(CommitRequest request)

Commits a transaction, while optionally updating documents.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   CommitRequest request =
       CommitRequest.newBuilder()
           .setDatabase("database1789464955")
           .addAllWrites(new ArrayList<Write>())
           .setTransaction(ByteString.EMPTY)
           .build();
   CommitResponse response = firestoreClient.commit(request);
 }

Parameter
Name	Description
`request`	`CommitRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`CommitResponse`

commit(String database, List<Write> writes)

public final CommitResponse commit(String database, List<Write> writes)

Commits a transaction, while optionally updating documents.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   String database = "database1789464955";
   List<Write> writes = new ArrayList<>();
   CommitResponse response = firestoreClient.commit(database, writes);
 }

Parameters

Name Description

database

String

Required. The database name. In the format: projects/{project_id}/databases/{database_id}.

writes

List<Write>

The writes to apply.

Always executed atomically and in order.

Returns
Type	Description
`CommitResponse`

commitCallable()

public final UnaryCallable<CommitRequest,CommitResponse> commitCallable()

Commits a transaction, while optionally updating documents.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   CommitRequest request =
       CommitRequest.newBuilder()
           .setDatabase("database1789464955")
           .addAllWrites(new ArrayList<Write>())
           .setTransaction(ByteString.EMPTY)
           .build();
   ApiFuture<CommitResponse> future = firestoreClient.commitCallable().futureCall(request);
   // Do something.
   CommitResponse response = future.get();
 }

Returns
Type	Description
`UnaryCallable<CommitRequest,CommitResponse>`

createDocument(CreateDocumentRequest request)

public final Document createDocument(CreateDocumentRequest request)

Creates a new document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   CreateDocumentRequest request =
       CreateDocumentRequest.newBuilder()
           .setParent("parent-995424086")
           .setCollectionId("collectionId1636075609")
           .setDocumentId("documentId-814940266")
           .setDocument(Document.newBuilder().build())
           .setMask(DocumentMask.newBuilder().build())
           .build();
   Document response = firestoreClient.createDocument(request);
 }

Parameter
Name	Description
`request`	`CreateDocumentRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`Document`

createDocumentCallable()

public final UnaryCallable<CreateDocumentRequest,Document> createDocumentCallable()

Creates a new document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   CreateDocumentRequest request =
       CreateDocumentRequest.newBuilder()
           .setParent("parent-995424086")
           .setCollectionId("collectionId1636075609")
           .setDocumentId("documentId-814940266")
           .setDocument(Document.newBuilder().build())
           .setMask(DocumentMask.newBuilder().build())
           .build();
   ApiFuture<Document> future = firestoreClient.createDocumentCallable().futureCall(request);
   // Do something.
   Document response = future.get();
 }

Returns
Type	Description
`UnaryCallable<CreateDocumentRequest,Document>`

deleteDocument(DeleteDocumentRequest request)

public final void deleteDocument(DeleteDocumentRequest request)

Deletes a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   DeleteDocumentRequest request =
       DeleteDocumentRequest.newBuilder()
           .setName("name3373707")
           .setCurrentDocument(Precondition.newBuilder().build())
           .build();
   firestoreClient.deleteDocument(request);
 }

Parameter
Name	Description
`request`	`DeleteDocumentRequest` The request object containing all of the parameters for the API call.

deleteDocument(String name)

public final void deleteDocument(String name)

Deletes a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   String name = "name3373707";
   firestoreClient.deleteDocument(name);
 }

Parameter
Name	Description
`name`	`String` Required. The resource name of the Document to delete. In the format: `projects/{project_id}/databases/{database_id}/documents/{document_path}`.

deleteDocumentCallable()

public final UnaryCallable<DeleteDocumentRequest,Empty> deleteDocumentCallable()

Deletes a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   DeleteDocumentRequest request =
       DeleteDocumentRequest.newBuilder()
           .setName("name3373707")
           .setCurrentDocument(Precondition.newBuilder().build())
           .build();
   ApiFuture<Empty> future = firestoreClient.deleteDocumentCallable().futureCall(request);
   // Do something.
   future.get();
 }

Returns
Type	Description
`UnaryCallable<DeleteDocumentRequest,Empty>`

getDocument(GetDocumentRequest request)

public final Document getDocument(GetDocumentRequest request)

Gets a single document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   GetDocumentRequest request =
       GetDocumentRequest.newBuilder()
           .setName("name3373707")
           .setMask(DocumentMask.newBuilder().build())
           .build();
   Document response = firestoreClient.getDocument(request);
 }

Parameter
Name	Description
`request`	`GetDocumentRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`Document`

getDocumentCallable()

public final UnaryCallable<GetDocumentRequest,Document> getDocumentCallable()

Gets a single document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   GetDocumentRequest request =
       GetDocumentRequest.newBuilder()
           .setName("name3373707")
           .setMask(DocumentMask.newBuilder().build())
           .build();
   ApiFuture<Document> future = firestoreClient.getDocumentCallable().futureCall(request);
   // Do something.
   Document response = future.get();
 }

Returns
Type	Description
`UnaryCallable<GetDocumentRequest,Document>`

getSettings()

public final FirestoreSettings getSettings()

Returns
Type	Description
`FirestoreSettings`

getStub()

public FirestoreStub getStub()

Returns
Type	Description
`FirestoreStub`

isShutdown()

public boolean isShutdown()

Returns
Type	Description
`boolean`

isTerminated()

public boolean isTerminated()

Returns
Type	Description
`boolean`

listCollectionIds(ListCollectionIdsRequest request)

public final FirestoreClient.ListCollectionIdsPagedResponse listCollectionIds(ListCollectionIdsRequest request)

Lists all the collection IDs underneath a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   ListCollectionIdsRequest request =
       ListCollectionIdsRequest.newBuilder()
           .setParent("parent-995424086")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   for (String element : firestoreClient.listCollectionIds(request).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter
Name	Description
`request`	`ListCollectionIdsRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`FirestoreClient.ListCollectionIdsPagedResponse`

listCollectionIds(String parent)

public final FirestoreClient.ListCollectionIdsPagedResponse listCollectionIds(String parent)

Lists all the collection IDs underneath a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   String parent = "parent-995424086";
   for (String element : firestoreClient.listCollectionIds(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter
Name	Description
`parent`	`String` Required. The parent document. In the format: `projects/{project_id}/databases/{database_id}/documents/{document_path}`. For example: `projects/my-project/databases/my-database/documents/chatrooms/my-chatroom`

Returns
Type	Description
`FirestoreClient.ListCollectionIdsPagedResponse`

listCollectionIdsCallable()

public final UnaryCallable<ListCollectionIdsRequest,ListCollectionIdsResponse> listCollectionIdsCallable()

Lists all the collection IDs underneath a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   ListCollectionIdsRequest request =
       ListCollectionIdsRequest.newBuilder()
           .setParent("parent-995424086")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   while (true) {
     ListCollectionIdsResponse response =
         firestoreClient.listCollectionIdsCallable().call(request);
     for (String element : response.getCollectionIdsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

Returns
Type	Description
`UnaryCallable<ListCollectionIdsRequest,ListCollectionIdsResponse>`

listCollectionIdsPagedCallable()

public final UnaryCallable<ListCollectionIdsRequest,FirestoreClient.ListCollectionIdsPagedResponse> listCollectionIdsPagedCallable()

Lists all the collection IDs underneath a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   ListCollectionIdsRequest request =
       ListCollectionIdsRequest.newBuilder()
           .setParent("parent-995424086")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   ApiFuture<String> future =
       firestoreClient.listCollectionIdsPagedCallable().futureCall(request);
   // Do something.
   for (String element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

Returns
Type	Description
`UnaryCallable<ListCollectionIdsRequest,ListCollectionIdsPagedResponse>`

listDocuments(ListDocumentsRequest request)

public final FirestoreClient.ListDocumentsPagedResponse listDocuments(ListDocumentsRequest request)

Lists documents.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   ListDocumentsRequest request =
       ListDocumentsRequest.newBuilder()
           .setParent("parent-995424086")
           .setCollectionId("collectionId1636075609")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setOrderBy("orderBy-1207110587")
           .setMask(DocumentMask.newBuilder().build())
           .setShowMissing(true)
           .build();
   for (Document element : firestoreClient.listDocuments(request).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter
Name	Description
`request`	`ListDocumentsRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`FirestoreClient.ListDocumentsPagedResponse`

listDocumentsCallable()

public final UnaryCallable<ListDocumentsRequest,ListDocumentsResponse> listDocumentsCallable()

Lists documents.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   ListDocumentsRequest request =
       ListDocumentsRequest.newBuilder()
           .setParent("parent-995424086")
           .setCollectionId("collectionId1636075609")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setOrderBy("orderBy-1207110587")
           .setMask(DocumentMask.newBuilder().build())
           .setShowMissing(true)
           .build();
   while (true) {
     ListDocumentsResponse response = firestoreClient.listDocumentsCallable().call(request);
     for (Document element : response.getDocumentsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

Returns
Type	Description
`UnaryCallable<ListDocumentsRequest,ListDocumentsResponse>`

listDocumentsPagedCallable()

public final UnaryCallable<ListDocumentsRequest,FirestoreClient.ListDocumentsPagedResponse> listDocumentsPagedCallable()

Lists documents.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   ListDocumentsRequest request =
       ListDocumentsRequest.newBuilder()
           .setParent("parent-995424086")
           .setCollectionId("collectionId1636075609")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setOrderBy("orderBy-1207110587")
           .setMask(DocumentMask.newBuilder().build())
           .setShowMissing(true)
           .build();
   ApiFuture<Document> future = firestoreClient.listDocumentsPagedCallable().futureCall(request);
   // Do something.
   for (Document element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

Returns
Type	Description
`UnaryCallable<ListDocumentsRequest,ListDocumentsPagedResponse>`

listenCallable()

public final BidiStreamingCallable<ListenRequest,ListenResponse> listenCallable()

Listens to changes. This method is only available via gRPC or WebChannel (not REST).

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   BidiStream<ListenRequest, ListenResponse> bidiStream =
       firestoreClient.listenCallable().call();
   ListenRequest request =
       ListenRequest.newBuilder()
           .setDatabase("database1789464955")
           .putAllLabels(new HashMap<String, String>())
           .build();
   bidiStream.send(request);
   for (ListenResponse response : bidiStream) {
     // Do something when a response is received.
   }
 }

Returns
Type	Description
`BidiStreamingCallable<ListenRequest,ListenResponse>`

partitionQuery(PartitionQueryRequest request)

public final FirestoreClient.PartitionQueryPagedResponse partitionQuery(PartitionQueryRequest request)

Partitions a query by returning partition cursors that can be used to run the query in parallel. The returned partition cursors are split points that can be used by RunQuery as starting/end points for the query results.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   PartitionQueryRequest request =
       PartitionQueryRequest.newBuilder()
           .setParent("parent-995424086")
           .setPartitionCount(-1738969222)
           .setPageToken("pageToken873572522")
           .setPageSize(883849137)
           .build();
   for (Cursor element : firestoreClient.partitionQuery(request).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter
Name	Description
`request`	`PartitionQueryRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`FirestoreClient.PartitionQueryPagedResponse`

partitionQueryCallable()

public final UnaryCallable<PartitionQueryRequest,PartitionQueryResponse> partitionQueryCallable()

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   PartitionQueryRequest request =
       PartitionQueryRequest.newBuilder()
           .setParent("parent-995424086")
           .setPartitionCount(-1738969222)
           .setPageToken("pageToken873572522")
           .setPageSize(883849137)
           .build();
   while (true) {
     PartitionQueryResponse response = firestoreClient.partitionQueryCallable().call(request);
     for (Cursor element : response.getPartitionsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

Returns
Type	Description
`UnaryCallable<PartitionQueryRequest,PartitionQueryResponse>`

partitionQueryPagedCallable()

public final UnaryCallable<PartitionQueryRequest,FirestoreClient.PartitionQueryPagedResponse> partitionQueryPagedCallable()

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   PartitionQueryRequest request =
       PartitionQueryRequest.newBuilder()
           .setParent("parent-995424086")
           .setPartitionCount(-1738969222)
           .setPageToken("pageToken873572522")
           .setPageSize(883849137)
           .build();
   ApiFuture<Cursor> future = firestoreClient.partitionQueryPagedCallable().futureCall(request);
   // Do something.
   for (Cursor element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

Returns
Type	Description
`UnaryCallable<PartitionQueryRequest,PartitionQueryPagedResponse>`

rollback(RollbackRequest request)

public final void rollback(RollbackRequest request)

Rolls back a transaction.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   RollbackRequest request =
       RollbackRequest.newBuilder()
           .setDatabase("database1789464955")
           .setTransaction(ByteString.EMPTY)
           .build();
   firestoreClient.rollback(request);
 }

Parameter
Name	Description
`request`	`RollbackRequest` The request object containing all of the parameters for the API call.

rollback(String database, ByteString transaction)

public final void rollback(String database, ByteString transaction)

Rolls back a transaction.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   String database = "database1789464955";
   ByteString transaction = ByteString.EMPTY;
   firestoreClient.rollback(database, transaction);
 }

Parameters
Name	Description
`database`	`String` Required. The database name. In the format: `projects/{project_id}/databases/{database_id}`.
`transaction`	`ByteString` Required. The transaction to roll back.

rollbackCallable()

public final UnaryCallable<RollbackRequest,Empty> rollbackCallable()

Rolls back a transaction.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   RollbackRequest request =
       RollbackRequest.newBuilder()
           .setDatabase("database1789464955")
           .setTransaction(ByteString.EMPTY)
           .build();
   ApiFuture<Empty> future = firestoreClient.rollbackCallable().futureCall(request);
   // Do something.
   future.get();
 }

Returns
Type	Description
`UnaryCallable<RollbackRequest,Empty>`

runAggregationQueryCallable()

public final ServerStreamingCallable<RunAggregationQueryRequest,RunAggregationQueryResponse> runAggregationQueryCallable()

Runs an aggregation query.

Rather than producing Document results like Firestore.RunQuery, this API allows running an aggregation to produce a series of AggregationResult server-side.

High-Level Example:

<code><code> -- Return the number of documents in table given a filter. SELECT COUNT(*) FROM ( SELECT * FROM k where a = true ); </code></code>

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   RunAggregationQueryRequest request =
       RunAggregationQueryRequest.newBuilder()
           .setParent("parent-995424086")
           .setExplainOptions(ExplainOptions.newBuilder().build())
           .build();
   ServerStream<RunAggregationQueryResponse> stream =
       firestoreClient.runAggregationQueryCallable().call(request);
   for (RunAggregationQueryResponse response : stream) {
     // Do something when a response is received.
   }
 }

Returns
Type	Description
`ServerStreamingCallable<RunAggregationQueryRequest,RunAggregationQueryResponse>`

runQueryCallable()

public final ServerStreamingCallable<RunQueryRequest,RunQueryResponse> runQueryCallable()

Runs a query.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   RunQueryRequest request =
       RunQueryRequest.newBuilder()
           .setParent("parent-995424086")
           .setExplainOptions(ExplainOptions.newBuilder().build())
           .build();
   ServerStream<RunQueryResponse> stream = firestoreClient.runQueryCallable().call(request);
   for (RunQueryResponse response : stream) {
     // Do something when a response is received.
   }
 }

Returns
Type	Description
`ServerStreamingCallable<RunQueryRequest,RunQueryResponse>`

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()

updateDocument(Document document, DocumentMask updateMask)

public final Document updateDocument(Document document, DocumentMask updateMask)

Updates or inserts a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   Document document = Document.newBuilder().build();
   DocumentMask updateMask = DocumentMask.newBuilder().build();
   Document response = firestoreClient.updateDocument(document, updateMask);
 }

Parameters

Name Description

document

Document

Required. The updated document. Creates the document if it does not already exist.

updateMask

DocumentMask

The fields to update. None of the field paths in the mask may contain a reserved name.

If the document exists on the server and has fields not referenced in the mask, they are left unchanged. Fields referenced in the mask, but not present in the input document, are deleted from the document on the server.

Returns
Type	Description
`Document`

updateDocument(UpdateDocumentRequest request)

public final Document updateDocument(UpdateDocumentRequest request)

Updates or inserts a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   UpdateDocumentRequest request =
       UpdateDocumentRequest.newBuilder()
           .setDocument(Document.newBuilder().build())
           .setUpdateMask(DocumentMask.newBuilder().build())
           .setMask(DocumentMask.newBuilder().build())
           .setCurrentDocument(Precondition.newBuilder().build())
           .build();
   Document response = firestoreClient.updateDocument(request);
 }

Parameter
Name	Description
`request`	`UpdateDocumentRequest` The request object containing all of the parameters for the API call.

Returns
Type	Description
`Document`

updateDocumentCallable()

public final UnaryCallable<UpdateDocumentRequest,Document> updateDocumentCallable()

Updates or inserts a document.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   UpdateDocumentRequest request =
       UpdateDocumentRequest.newBuilder()
           .setDocument(Document.newBuilder().build())
           .setUpdateMask(DocumentMask.newBuilder().build())
           .setMask(DocumentMask.newBuilder().build())
           .setCurrentDocument(Precondition.newBuilder().build())
           .build();
   ApiFuture<Document> future = firestoreClient.updateDocumentCallable().futureCall(request);
   // Do something.
   Document response = future.get();
 }

Returns
Type	Description
`UnaryCallable<UpdateDocumentRequest,Document>`

writeCallable()

public final BidiStreamingCallable<WriteRequest,WriteResponse> writeCallable()

Streams batches of document updates and deletes, in order. This method is only available via gRPC or WebChannel (not REST).

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (FirestoreClient firestoreClient = FirestoreClient.create()) {
   BidiStream<WriteRequest, WriteResponse> bidiStream = firestoreClient.writeCallable().call();
   WriteRequest request =
       WriteRequest.newBuilder()
           .setDatabase("database1789464955")
           .setStreamId("streamId1790933179")
           .addAllWrites(new ArrayList<Write>())
           .setStreamToken(ByteString.EMPTY)
           .putAllLabels(new HashMap<String, String>())
           .build();
   bidiStream.send(request);
   for (WriteResponse response : bidiStream) {
     // Do something when a response is received.
   }
 }

Returns
Type	Description
`BidiStreamingCallable<WriteRequest,WriteResponse>`