Class: Google::Cloud::Spanner::V1::RequestOptions

Inherits:
Object
  • Object
show all
Extended by:
Protobuf::MessageExts::ClassMethods
Includes:
Protobuf::MessageExts
Defined in:
proto_docs/google/spanner/v1/spanner.rb

Overview

Common request options for various APIs.

Defined Under Namespace

Modules: Priority

Instance Attribute Summary collapse

Instance Attribute Details

#priority ⇒ ::Google::Cloud::Spanner::V1::RequestOptions::Priority

Returns Priority for the request.

Returns:



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# File 'proto_docs/google/spanner/v1/spanner.rb', line 208

class RequestOptions
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # The relative priority for requests. Note that priority isn't applicable
  # for {::Google::Cloud::Spanner::V1::Spanner::Client#begin_transaction BeginTransaction}.
  #
  # The priority acts as a hint to the Cloud Spanner scheduler and doesn't
  # guarantee priority or order of execution. For example:
  #
  # * Some parts of a write operation always execute at `PRIORITY_HIGH`,
  #   regardless of the specified priority. This can cause you to see an
  #   increase in high priority workload even when executing a low priority
  #   request. This can also potentially cause a priority inversion where a
  #   lower priority request is fulfilled ahead of a higher priority
  #   request.
  # * If a transaction contains multiple operations with different priorities,
  #   Cloud Spanner doesn't guarantee to process the higher priority
  #   operations first. There might be other constraints to satisfy, such as
  #   the order of operations.
  module Priority
    # `PRIORITY_UNSPECIFIED` is equivalent to `PRIORITY_HIGH`.
    PRIORITY_UNSPECIFIED = 0

    # This specifies that the request is low priority.
    PRIORITY_LOW = 1

    # This specifies that the request is medium priority.
    PRIORITY_MEDIUM = 2

    # This specifies that the request is high priority.
    PRIORITY_HIGH = 3
  end
end

#request_tag ⇒ ::String

Returns A per-request tag which can be applied to queries or reads, used for statistics collection. Both request_tag and transaction_tag can be specified for a read or query that belongs to a transaction. This field is ignored for requests where it's not applicable (for example, CommitRequest). Legal characters for request_tag values are all printable characters (ASCII 32 - 126) and the length of a request_tag is limited to 50 characters. Values that exceed this limit are truncated. Any leading underscore (_) characters are removed from the string.

Returns:

  • (::String) —

    A per-request tag which can be applied to queries or reads, used for statistics collection. Both request_tag and transaction_tag can be specified for a read or query that belongs to a transaction. This field is ignored for requests where it's not applicable (for example, CommitRequest). Legal characters for request_tag values are all printable characters (ASCII 32 - 126) and the length of a request_tag is limited to 50 characters. Values that exceed this limit are truncated. Any leading underscore (_) characters are removed from the string.



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# File 'proto_docs/google/spanner/v1/spanner.rb', line 208

class RequestOptions
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # The relative priority for requests. Note that priority isn't applicable
  # for {::Google::Cloud::Spanner::V1::Spanner::Client#begin_transaction BeginTransaction}.
  #
  # The priority acts as a hint to the Cloud Spanner scheduler and doesn't
  # guarantee priority or order of execution. For example:
  #
  # * Some parts of a write operation always execute at `PRIORITY_HIGH`,
  #   regardless of the specified priority. This can cause you to see an
  #   increase in high priority workload even when executing a low priority
  #   request. This can also potentially cause a priority inversion where a
  #   lower priority request is fulfilled ahead of a higher priority
  #   request.
  # * If a transaction contains multiple operations with different priorities,
  #   Cloud Spanner doesn't guarantee to process the higher priority
  #   operations first. There might be other constraints to satisfy, such as
  #   the order of operations.
  module Priority
    # `PRIORITY_UNSPECIFIED` is equivalent to `PRIORITY_HIGH`.
    PRIORITY_UNSPECIFIED = 0

    # This specifies that the request is low priority.
    PRIORITY_LOW = 1

    # This specifies that the request is medium priority.
    PRIORITY_MEDIUM = 2

    # This specifies that the request is high priority.
    PRIORITY_HIGH = 3
  end
end

#transaction_tag ⇒ ::String

Returns A tag used for statistics collection about this transaction. Both request_tag and transaction_tag can be specified for a read or query that belongs to a transaction. The value of transaction_tag should be the same for all requests belonging to the same transaction. If this request doesn't belong to any transaction, transaction_tag is ignored. Legal characters for transaction_tag values are all printable characters (ASCII 32 - 126) and the length of a transaction_tag is limited to 50 characters. Values that exceed this limit are truncated. Any leading underscore (_) characters are removed from the string.

Returns:

  • (::String) —

    A tag used for statistics collection about this transaction. Both request_tag and transaction_tag can be specified for a read or query that belongs to a transaction. The value of transaction_tag should be the same for all requests belonging to the same transaction. If this request doesn't belong to any transaction, transaction_tag is ignored. Legal characters for transaction_tag values are all printable characters (ASCII 32 - 126) and the length of a transaction_tag is limited to 50 characters. Values that exceed this limit are truncated. Any leading underscore (_) characters are removed from the string.



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# File 'proto_docs/google/spanner/v1/spanner.rb', line 208

class RequestOptions
  include ::Google::Protobuf::MessageExts
  extend ::Google::Protobuf::MessageExts::ClassMethods

  # The relative priority for requests. Note that priority isn't applicable
  # for {::Google::Cloud::Spanner::V1::Spanner::Client#begin_transaction BeginTransaction}.
  #
  # The priority acts as a hint to the Cloud Spanner scheduler and doesn't
  # guarantee priority or order of execution. For example:
  #
  # * Some parts of a write operation always execute at `PRIORITY_HIGH`,
  #   regardless of the specified priority. This can cause you to see an
  #   increase in high priority workload even when executing a low priority
  #   request. This can also potentially cause a priority inversion where a
  #   lower priority request is fulfilled ahead of a higher priority
  #   request.
  # * If a transaction contains multiple operations with different priorities,
  #   Cloud Spanner doesn't guarantee to process the higher priority
  #   operations first. There might be other constraints to satisfy, such as
  #   the order of operations.
  module Priority
    # `PRIORITY_UNSPECIFIED` is equivalent to `PRIORITY_HIGH`.
    PRIORITY_UNSPECIFIED = 0

    # This specifies that the request is low priority.
    PRIORITY_LOW = 1

    # This specifies that the request is medium priority.
    PRIORITY_MEDIUM = 2

    # This specifies that the request is high priority.
    PRIORITY_HIGH = 3
  end
end