Class DatastoreGrpc.DatastoreBlockingV2Stub (3.1.0) 

public static final class DatastoreGrpc.DatastoreBlockingV2Stub extends AbstractBlockingStub<DatastoreGrpc.DatastoreBlockingV2Stub>

A stub to allow clients to do synchronous rpc calls to service Datastore.

Each RPC normalizes the partition IDs of the keys in its input entities, and always returns entities with keys with normalized partition IDs. This applies to all keys and entities, including those in values, except keys with both an empty path and an empty or unset partition ID. Normalization of input keys sets the project ID (if not already set) to the project ID from the request.

Inheritance

java.lang.Object > io.grpc.stub.AbstractStub > io.grpc.stub.AbstractBlockingStub > DatastoreGrpc.DatastoreBlockingV2Stub

Methods

allocateIds(AllocateIdsRequest request)

public AllocateIdsResponse allocateIds(AllocateIdsRequest request)

Allocates IDs for the given keys, which is useful for referencing an entity before it is inserted.

Parameter
Name Description
request AllocateIdsRequest
Returns
Type Description
AllocateIdsResponse
Exceptions
Type Description
io.grpc.StatusException

beginTransaction(BeginTransactionRequest request)

public BeginTransactionResponse beginTransaction(BeginTransactionRequest request)

Begins a new transaction.

Parameter
Name Description
request BeginTransactionRequest
Returns
Type Description
BeginTransactionResponse
Exceptions
Type Description
io.grpc.StatusException

build(Channel channel, CallOptions callOptions)

protected DatastoreGrpc.DatastoreBlockingV2Stub build(Channel channel, CallOptions callOptions)
Parameters
Name Description
channel io.grpc.Channel
callOptions io.grpc.CallOptions
Returns
Type Description
DatastoreGrpc.DatastoreBlockingV2Stub
Overrides
io.grpc.stub.AbstractStub.build(io.grpc.Channel,io.grpc.CallOptions)

commit(CommitRequest request)

public CommitResponse commit(CommitRequest request)

Commits a transaction, optionally creating, deleting or modifying some entities.

Parameter
Name Description
request CommitRequest
Returns
Type Description
CommitResponse
Exceptions
Type Description
io.grpc.StatusException

lookup(LookupRequest request)

public LookupResponse lookup(LookupRequest request)

Looks up entities by key.

Parameter
Name Description
request LookupRequest
Returns
Type Description
LookupResponse
Exceptions
Type Description
io.grpc.StatusException

reserveIds(ReserveIdsRequest request)

public ReserveIdsResponse reserveIds(ReserveIdsRequest request)

Prevents the supplied keys' IDs from being auto-allocated by Cloud Datastore.

Parameter
Name Description
request ReserveIdsRequest
Returns
Type Description
ReserveIdsResponse
Exceptions
Type Description
io.grpc.StatusException

rollback(RollbackRequest request)

public RollbackResponse rollback(RollbackRequest request)

Rolls back a transaction.

Parameter
Name Description
request RollbackRequest
Returns
Type Description
RollbackResponse
Exceptions
Type Description
io.grpc.StatusException

runAggregationQuery(RunAggregationQueryRequest request)

public RunAggregationQueryResponse runAggregationQuery(RunAggregationQueryRequest request)

Runs an aggregation query.

Parameter
Name Description
request RunAggregationQueryRequest
Returns
Type Description
RunAggregationQueryResponse
Exceptions
Type Description
io.grpc.StatusException

runQuery(RunQueryRequest request)

public RunQueryResponse runQuery(RunQueryRequest request)

Queries for entities.

Parameter
Name Description
request RunQueryRequest
Returns
Type Description
RunQueryResponse
Exceptions
Type Description
io.grpc.StatusException