Interface ReadRequestOrBuilder (6.82.0) 

public interface ReadRequestOrBuilder extends MessageOrBuilder

Implements

MessageOrBuilder

Methods

getColumns(int index)

public abstract String getColumns(int index)

Required. The columns of table to be returned for each row matching this request.

repeated string columns = 5 [(.google.api.field_behavior) = REQUIRED];

Parameter
Name Description
index int

The index of the element to return.
Returns
Type Description
String

The columns at the given index.

getColumnsBytes(int index)

public abstract ByteString getColumnsBytes(int index)

Required. The columns of table to be returned for each row matching this request.

repeated string columns = 5 [(.google.api.field_behavior) = REQUIRED];

Parameter
Name Description
index int

The index of the value to return.
Returns
Type Description
ByteString

The bytes of the columns at the given index.

getColumnsCount()

public abstract int getColumnsCount()

Required. The columns of table to be returned for each row matching this request.

repeated string columns = 5 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
int

The count of columns.

getColumnsList()

public abstract List<String> getColumnsList()

Required. The columns of table to be returned for each row matching this request.

repeated string columns = 5 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
List<String>

A list containing the columns.

getDataBoostEnabled()

public abstract boolean getDataBoostEnabled()

If this is for a partitioned read and this field is set to true, the request is executed with Spanner Data Boost independent compute resources.

If the field is set to true but the request does not set partition_token, the API returns an INVALID_ARGUMENT error.

bool data_boost_enabled = 15;

Returns
Type Description
boolean

The dataBoostEnabled.

getDirectedReadOptions()

public abstract DirectedReadOptions getDirectedReadOptions()

Directed read options for this request.

.google.spanner.v1.DirectedReadOptions directed_read_options = 14;

Returns
Type Description
DirectedReadOptions

The directedReadOptions.

getDirectedReadOptionsOrBuilder()

public abstract DirectedReadOptionsOrBuilder getDirectedReadOptionsOrBuilder()

Directed read options for this request.

.google.spanner.v1.DirectedReadOptions directed_read_options = 14;

Returns
Type Description
DirectedReadOptionsOrBuilder

getIndex()

public abstract String getIndex()

If non-empty, the name of an index on table. This index is used instead of the table primary key when interpreting key_set and sorting result rows. See key_set for further information.

string index = 4;

Returns
Type Description
String

The index.

getIndexBytes()

public abstract ByteString getIndexBytes()

If non-empty, the name of an index on table. This index is used instead of the table primary key when interpreting key_set and sorting result rows. See key_set for further information.

string index = 4;

Returns
Type Description
ByteString

The bytes for index.

getKeySet()

public abstract KeySet getKeySet()

Required. key_set identifies the rows to be yielded. key_set names the primary keys of the rows in table to be yielded, unless index is present. If index is present, then key_set instead names index keys in index.

If the partition_token field is empty, rows are yielded in table primary key order (if index is empty) or index key order (if index is non-empty). If the partition_token field is not empty, rows will be yielded in an unspecified order.

It is not an error for the key_set to name rows that do not exist in the database. Read yields nothing for nonexistent rows.

.google.spanner.v1.KeySet key_set = 6 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
KeySet

The keySet.

getKeySetOrBuilder()

public abstract KeySetOrBuilder getKeySetOrBuilder()

Required. key_set identifies the rows to be yielded. key_set names the primary keys of the rows in table to be yielded, unless index is present. If index is present, then key_set instead names index keys in index.

If the partition_token field is empty, rows are yielded in table primary key order (if index is empty) or index key order (if index is non-empty). If the partition_token field is not empty, rows will be yielded in an unspecified order.

It is not an error for the key_set to name rows that do not exist in the database. Read yields nothing for nonexistent rows.

.google.spanner.v1.KeySet key_set = 6 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
KeySetOrBuilder

getLimit()

public abstract long getLimit()

If greater than zero, only the first limit rows are yielded. If limit is zero, the default is no limit. A limit cannot be specified if partition_token is set.

int64 limit = 8;

Returns
Type Description
long

The limit.

getLockHint()

public abstract ReadRequest.LockHint getLockHint()

Optional. Lock Hint for the request, it can only be used with read-write transactions.

.google.spanner.v1.ReadRequest.LockHint lock_hint = 17 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
ReadRequest.LockHint

The lockHint.

getLockHintValue()

public abstract int getLockHintValue()

Optional. Lock Hint for the request, it can only be used with read-write transactions.

.google.spanner.v1.ReadRequest.LockHint lock_hint = 17 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
int

The enum numeric value on the wire for lockHint.

getOrderBy()

public abstract ReadRequest.OrderBy getOrderBy()

Optional. Order for the returned rows.

By default, Spanner will return result rows in primary key order except for PartitionRead requests. For applications that do not require rows to be returned in primary key (ORDER_BY_PRIMARY_KEY) order, setting ORDER_BY_NO_ORDER option allows Spanner to optimize row retrieval, resulting in lower latencies in certain cases (e.g. bulk point lookups).

.google.spanner.v1.ReadRequest.OrderBy order_by = 16 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
ReadRequest.OrderBy

The orderBy.

getOrderByValue()

public abstract int getOrderByValue()

Optional. Order for the returned rows.

By default, Spanner will return result rows in primary key order except for PartitionRead requests. For applications that do not require rows to be returned in primary key (ORDER_BY_PRIMARY_KEY) order, setting ORDER_BY_NO_ORDER option allows Spanner to optimize row retrieval, resulting in lower latencies in certain cases (e.g. bulk point lookups).

.google.spanner.v1.ReadRequest.OrderBy order_by = 16 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
int

The enum numeric value on the wire for orderBy.

getPartitionToken()

public abstract ByteString getPartitionToken()

If present, results will be restricted to the specified partition previously created using PartitionRead(). There must be an exact match for the values of fields common to this message and the PartitionReadRequest message used to create this partition_token.

bytes partition_token = 10;

Returns
Type Description
ByteString

The partitionToken.

getRequestOptions()

public abstract RequestOptions getRequestOptions()

Common options for this request.

.google.spanner.v1.RequestOptions request_options = 11;

Returns
Type Description
RequestOptions

The requestOptions.

getRequestOptionsOrBuilder()

public abstract RequestOptionsOrBuilder getRequestOptionsOrBuilder()

Common options for this request.

.google.spanner.v1.RequestOptions request_options = 11;

Returns
Type Description
RequestOptionsOrBuilder

getResumeToken()

public abstract ByteString getResumeToken()

If this request is resuming a previously interrupted read, resume_token should be copied from the last PartialResultSet yielded before the interruption. Doing this enables the new read to resume where the last read left off. The rest of the request parameters must exactly match the request that yielded this token.

bytes resume_token = 9;

Returns
Type Description
ByteString

The resumeToken.

getSession()

public abstract String getSession()

Required. The session in which the read should be performed.

string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }

Returns
Type Description
String

The session.

getSessionBytes()

public abstract ByteString getSessionBytes()

Required. The session in which the read should be performed.

string session = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }

Returns
Type Description
ByteString

The bytes for session.

getTable()

public abstract String getTable()

Required. The name of the table in the database to be read.

string table = 3 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
String

The table.

getTableBytes()

public abstract ByteString getTableBytes()

Required. The name of the table in the database to be read.

string table = 3 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
ByteString

The bytes for table.

getTransaction()

public abstract TransactionSelector getTransaction()

The transaction to use. If none is provided, the default is a temporary read-only transaction with strong concurrency.

.google.spanner.v1.TransactionSelector transaction = 2;

Returns
Type Description
TransactionSelector

The transaction.

getTransactionOrBuilder()

public abstract TransactionSelectorOrBuilder getTransactionOrBuilder()

The transaction to use. If none is provided, the default is a temporary read-only transaction with strong concurrency.

.google.spanner.v1.TransactionSelector transaction = 2;

Returns
Type Description
TransactionSelectorOrBuilder

hasDirectedReadOptions()

public abstract boolean hasDirectedReadOptions()

Directed read options for this request.

.google.spanner.v1.DirectedReadOptions directed_read_options = 14;

Returns
Type Description
boolean

Whether the directedReadOptions field is set.

hasKeySet()

public abstract boolean hasKeySet()

Required. key_set identifies the rows to be yielded. key_set names the primary keys of the rows in table to be yielded, unless index is present. If index is present, then key_set instead names index keys in index.

If the partition_token field is empty, rows are yielded in table primary key order (if index is empty) or index key order (if index is non-empty). If the partition_token field is not empty, rows will be yielded in an unspecified order.

It is not an error for the key_set to name rows that do not exist in the database. Read yields nothing for nonexistent rows.

.google.spanner.v1.KeySet key_set = 6 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
boolean

Whether the keySet field is set.

hasRequestOptions()

public abstract boolean hasRequestOptions()

Common options for this request.

.google.spanner.v1.RequestOptions request_options = 11;

Returns
Type Description
boolean

Whether the requestOptions field is set.

hasTransaction()

public abstract boolean hasTransaction()

The transaction to use. If none is provided, the default is a temporary read-only transaction with strong concurrency.

.google.spanner.v1.TransactionSelector transaction = 2;

Returns
Type Description
boolean

Whether the transaction field is set.