Class: Google::Cloud::Firestore::Admin::V1::Index

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

Overview

Cloud Firestore indexes enable simple and complex queries against documents in a database.

Defined Under Namespace

Modules: ApiScope, QueryScope, State Classes: IndexField

Instance Attribute Summary collapse

Instance Attribute Details

#api_scope ⇒ ::Google::Cloud::Firestore::Admin::V1::Index::ApiScope

Returns The API scope supported by this index.

Returns:



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# File 'proto_docs/google/firestore/admin/v1/index.rb', line 61

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

  # A field in an index.
  # The field_path describes which field is indexed, the value_mode describes
  # how the field value is indexed.
  # @!attribute [rw] field_path
  #   @return [::String]
  #     Can be __name__.
  #     For single field indexes, this must match the name of the field or may
  #     be omitted.
  # @!attribute [rw] order
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::Order]
  #     Indicates that this field supports ordering by the specified order or
  #     comparing using =, !=, <, <=, >, >=.
  # @!attribute [rw] array_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::ArrayConfig]
  #     Indicates that this field supports operations on `array_value`s.
  # @!attribute [rw] vector_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig]
  #     Indicates that this field supports nearest neighbor and distance
  #     operations on vector.
  class IndexField
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The index configuration to support vector search operations
    # @!attribute [rw] dimension
    #   @return [::Integer]
    #     Required. The vector dimension this configuration applies to.
    #
    #     The resulting index will only include vectors of this dimension, and
    #     can be used for vector search with the same dimension.
    # @!attribute [rw] flat
    #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig::FlatIndex]
    #     Indicates the vector index is a flat index.
    class VectorConfig
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # An index that stores vectors in a flat data structure, and supports
      # exhaustive search.
      class FlatIndex
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end

    # The supported orderings.
    module Order
      # The ordering is unspecified. Not a valid option.
      ORDER_UNSPECIFIED = 0

      # The field is ordered by ascending field value.
      ASCENDING = 1

      # The field is ordered by descending field value.
      DESCENDING = 2
    end

    # The supported array value configurations.
    module ArrayConfig
      # The index does not support additional array queries.
      ARRAY_CONFIG_UNSPECIFIED = 0

      # The index supports array containment queries.
      CONTAINS = 1
    end
  end

  # Query Scope defines the scope at which a query is run. This is specified on
  # a StructuredQuery's `from` field.
  module QueryScope
    # The query scope is unspecified. Not a valid option.
    QUERY_SCOPE_UNSPECIFIED = 0

    # Indexes with a collection query scope specified allow queries
    # against a collection that is the child of a specific document, specified
    # at query time, and that has the collection ID specified by the index.
    COLLECTION = 1

    # Indexes with a collection group query scope specified allow queries
    # against all collections that has the collection ID specified by the
    # index.
    COLLECTION_GROUP = 2

    # Include all the collections's ancestor in the index. Only available for
    # Datastore Mode databases.
    COLLECTION_RECURSIVE = 3
  end

  # API Scope defines the APIs (Firestore Native, or Firestore in
  # Datastore Mode) that are supported for queries.
  module ApiScope
    # The index can only be used by the Firestore Native query API.
    # This is the default.
    ANY_API = 0

    # The index can only be used by the Firestore in Datastore Mode query API.
    DATASTORE_MODE_API = 1
  end

  # The state of an index. During index creation, an index will be in the
  # `CREATING` state. If the index is created successfully, it will transition
  # to the `READY` state. If the index creation encounters a problem, the index
  # will transition to the `NEEDS_REPAIR` state.
  module State
    # The state is unspecified.
    STATE_UNSPECIFIED = 0

    # The index is being created.
    # There is an active long-running operation for the index.
    # The index is updated when writing a document.
    # Some index data may exist.
    CREATING = 1

    # The index is ready to be used.
    # The index is updated when writing a document.
    # The index is fully populated from all stored documents it applies to.
    READY = 2

    # The index was being created, but something went wrong.
    # There is no active long-running operation for the index,
    # and the most recently finished long-running operation failed.
    # The index is not updated when writing a document.
    # Some index data may exist.
    # Use the google.longrunning.Operations API to determine why the operation
    # that last attempted to create this index failed, then re-create the
    # index.
    NEEDS_REPAIR = 3
  end
end

#fields ⇒ ::Array<::Google::Cloud::Firestore::Admin::V1::Index::IndexField>

Returns The fields supported by this index.

For composite indexes, this requires a minimum of 2 and a maximum of 100 fields. The last field entry is always for the field path __name__. If, on creation, __name__ was not specified as the last field, it will be added automatically with the same direction as that of the last field defined. If the final field in a composite index is not directional, the __name__ will be ordered ASCENDING (unless explicitly specified).

For single field indexes, this will always be exactly one entry with a field path equal to the field path of the associated field.

Returns:

  • (::Array<::Google::Cloud::Firestore::Admin::V1::Index::IndexField>) —

    The fields supported by this index.

    For composite indexes, this requires a minimum of 2 and a maximum of 100 fields. The last field entry is always for the field path __name__. If, on creation, __name__ was not specified as the last field, it will be added automatically with the same direction as that of the last field defined. If the final field in a composite index is not directional, the __name__ will be ordered ASCENDING (unless explicitly specified).

    For single field indexes, this will always be exactly one entry with a field path equal to the field path of the associated field.



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# File 'proto_docs/google/firestore/admin/v1/index.rb', line 61

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

  # A field in an index.
  # The field_path describes which field is indexed, the value_mode describes
  # how the field value is indexed.
  # @!attribute [rw] field_path
  #   @return [::String]
  #     Can be __name__.
  #     For single field indexes, this must match the name of the field or may
  #     be omitted.
  # @!attribute [rw] order
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::Order]
  #     Indicates that this field supports ordering by the specified order or
  #     comparing using =, !=, <, <=, >, >=.
  # @!attribute [rw] array_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::ArrayConfig]
  #     Indicates that this field supports operations on `array_value`s.
  # @!attribute [rw] vector_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig]
  #     Indicates that this field supports nearest neighbor and distance
  #     operations on vector.
  class IndexField
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The index configuration to support vector search operations
    # @!attribute [rw] dimension
    #   @return [::Integer]
    #     Required. The vector dimension this configuration applies to.
    #
    #     The resulting index will only include vectors of this dimension, and
    #     can be used for vector search with the same dimension.
    # @!attribute [rw] flat
    #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig::FlatIndex]
    #     Indicates the vector index is a flat index.
    class VectorConfig
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # An index that stores vectors in a flat data structure, and supports
      # exhaustive search.
      class FlatIndex
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end

    # The supported orderings.
    module Order
      # The ordering is unspecified. Not a valid option.
      ORDER_UNSPECIFIED = 0

      # The field is ordered by ascending field value.
      ASCENDING = 1

      # The field is ordered by descending field value.
      DESCENDING = 2
    end

    # The supported array value configurations.
    module ArrayConfig
      # The index does not support additional array queries.
      ARRAY_CONFIG_UNSPECIFIED = 0

      # The index supports array containment queries.
      CONTAINS = 1
    end
  end

  # Query Scope defines the scope at which a query is run. This is specified on
  # a StructuredQuery's `from` field.
  module QueryScope
    # The query scope is unspecified. Not a valid option.
    QUERY_SCOPE_UNSPECIFIED = 0

    # Indexes with a collection query scope specified allow queries
    # against a collection that is the child of a specific document, specified
    # at query time, and that has the collection ID specified by the index.
    COLLECTION = 1

    # Indexes with a collection group query scope specified allow queries
    # against all collections that has the collection ID specified by the
    # index.
    COLLECTION_GROUP = 2

    # Include all the collections's ancestor in the index. Only available for
    # Datastore Mode databases.
    COLLECTION_RECURSIVE = 3
  end

  # API Scope defines the APIs (Firestore Native, or Firestore in
  # Datastore Mode) that are supported for queries.
  module ApiScope
    # The index can only be used by the Firestore Native query API.
    # This is the default.
    ANY_API = 0

    # The index can only be used by the Firestore in Datastore Mode query API.
    DATASTORE_MODE_API = 1
  end

  # The state of an index. During index creation, an index will be in the
  # `CREATING` state. If the index is created successfully, it will transition
  # to the `READY` state. If the index creation encounters a problem, the index
  # will transition to the `NEEDS_REPAIR` state.
  module State
    # The state is unspecified.
    STATE_UNSPECIFIED = 0

    # The index is being created.
    # There is an active long-running operation for the index.
    # The index is updated when writing a document.
    # Some index data may exist.
    CREATING = 1

    # The index is ready to be used.
    # The index is updated when writing a document.
    # The index is fully populated from all stored documents it applies to.
    READY = 2

    # The index was being created, but something went wrong.
    # There is no active long-running operation for the index,
    # and the most recently finished long-running operation failed.
    # The index is not updated when writing a document.
    # Some index data may exist.
    # Use the google.longrunning.Operations API to determine why the operation
    # that last attempted to create this index failed, then re-create the
    # index.
    NEEDS_REPAIR = 3
  end
end

#name ⇒ ::String

Returns Output only. A server defined name for this index. The form of this name for composite indexes will be: projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}/indexes/{composite_index_id} For single field indexes, this field will be empty.

Returns:

  • (::String) —

    Output only. A server defined name for this index. The form of this name for composite indexes will be: projects/{project_id}/databases/{database_id}/collectionGroups/{collection_id}/indexes/{composite_index_id} For single field indexes, this field will be empty.



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# File 'proto_docs/google/firestore/admin/v1/index.rb', line 61

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

  # A field in an index.
  # The field_path describes which field is indexed, the value_mode describes
  # how the field value is indexed.
  # @!attribute [rw] field_path
  #   @return [::String]
  #     Can be __name__.
  #     For single field indexes, this must match the name of the field or may
  #     be omitted.
  # @!attribute [rw] order
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::Order]
  #     Indicates that this field supports ordering by the specified order or
  #     comparing using =, !=, <, <=, >, >=.
  # @!attribute [rw] array_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::ArrayConfig]
  #     Indicates that this field supports operations on `array_value`s.
  # @!attribute [rw] vector_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig]
  #     Indicates that this field supports nearest neighbor and distance
  #     operations on vector.
  class IndexField
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The index configuration to support vector search operations
    # @!attribute [rw] dimension
    #   @return [::Integer]
    #     Required. The vector dimension this configuration applies to.
    #
    #     The resulting index will only include vectors of this dimension, and
    #     can be used for vector search with the same dimension.
    # @!attribute [rw] flat
    #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig::FlatIndex]
    #     Indicates the vector index is a flat index.
    class VectorConfig
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # An index that stores vectors in a flat data structure, and supports
      # exhaustive search.
      class FlatIndex
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end

    # The supported orderings.
    module Order
      # The ordering is unspecified. Not a valid option.
      ORDER_UNSPECIFIED = 0

      # The field is ordered by ascending field value.
      ASCENDING = 1

      # The field is ordered by descending field value.
      DESCENDING = 2
    end

    # The supported array value configurations.
    module ArrayConfig
      # The index does not support additional array queries.
      ARRAY_CONFIG_UNSPECIFIED = 0

      # The index supports array containment queries.
      CONTAINS = 1
    end
  end

  # Query Scope defines the scope at which a query is run. This is specified on
  # a StructuredQuery's `from` field.
  module QueryScope
    # The query scope is unspecified. Not a valid option.
    QUERY_SCOPE_UNSPECIFIED = 0

    # Indexes with a collection query scope specified allow queries
    # against a collection that is the child of a specific document, specified
    # at query time, and that has the collection ID specified by the index.
    COLLECTION = 1

    # Indexes with a collection group query scope specified allow queries
    # against all collections that has the collection ID specified by the
    # index.
    COLLECTION_GROUP = 2

    # Include all the collections's ancestor in the index. Only available for
    # Datastore Mode databases.
    COLLECTION_RECURSIVE = 3
  end

  # API Scope defines the APIs (Firestore Native, or Firestore in
  # Datastore Mode) that are supported for queries.
  module ApiScope
    # The index can only be used by the Firestore Native query API.
    # This is the default.
    ANY_API = 0

    # The index can only be used by the Firestore in Datastore Mode query API.
    DATASTORE_MODE_API = 1
  end

  # The state of an index. During index creation, an index will be in the
  # `CREATING` state. If the index is created successfully, it will transition
  # to the `READY` state. If the index creation encounters a problem, the index
  # will transition to the `NEEDS_REPAIR` state.
  module State
    # The state is unspecified.
    STATE_UNSPECIFIED = 0

    # The index is being created.
    # There is an active long-running operation for the index.
    # The index is updated when writing a document.
    # Some index data may exist.
    CREATING = 1

    # The index is ready to be used.
    # The index is updated when writing a document.
    # The index is fully populated from all stored documents it applies to.
    READY = 2

    # The index was being created, but something went wrong.
    # There is no active long-running operation for the index,
    # and the most recently finished long-running operation failed.
    # The index is not updated when writing a document.
    # Some index data may exist.
    # Use the google.longrunning.Operations API to determine why the operation
    # that last attempted to create this index failed, then re-create the
    # index.
    NEEDS_REPAIR = 3
  end
end

#query_scope ⇒ ::Google::Cloud::Firestore::Admin::V1::Index::QueryScope

Returns Indexes with a collection query scope specified allow queries against a collection that is the child of a specific document, specified at query time, and that has the same collection ID.

Indexes with a collection group query scope specified allow queries against all collections descended from a specific document, specified at query time, and that have the same collection ID as this index.

Returns:

  • (::Google::Cloud::Firestore::Admin::V1::Index::QueryScope) —

    Indexes with a collection query scope specified allow queries against a collection that is the child of a specific document, specified at query time, and that has the same collection ID.

    Indexes with a collection group query scope specified allow queries against all collections descended from a specific document, specified at query time, and that have the same collection ID as this index.



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# File 'proto_docs/google/firestore/admin/v1/index.rb', line 61

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

  # A field in an index.
  # The field_path describes which field is indexed, the value_mode describes
  # how the field value is indexed.
  # @!attribute [rw] field_path
  #   @return [::String]
  #     Can be __name__.
  #     For single field indexes, this must match the name of the field or may
  #     be omitted.
  # @!attribute [rw] order
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::Order]
  #     Indicates that this field supports ordering by the specified order or
  #     comparing using =, !=, <, <=, >, >=.
  # @!attribute [rw] array_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::ArrayConfig]
  #     Indicates that this field supports operations on `array_value`s.
  # @!attribute [rw] vector_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig]
  #     Indicates that this field supports nearest neighbor and distance
  #     operations on vector.
  class IndexField
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The index configuration to support vector search operations
    # @!attribute [rw] dimension
    #   @return [::Integer]
    #     Required. The vector dimension this configuration applies to.
    #
    #     The resulting index will only include vectors of this dimension, and
    #     can be used for vector search with the same dimension.
    # @!attribute [rw] flat
    #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig::FlatIndex]
    #     Indicates the vector index is a flat index.
    class VectorConfig
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # An index that stores vectors in a flat data structure, and supports
      # exhaustive search.
      class FlatIndex
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end

    # The supported orderings.
    module Order
      # The ordering is unspecified. Not a valid option.
      ORDER_UNSPECIFIED = 0

      # The field is ordered by ascending field value.
      ASCENDING = 1

      # The field is ordered by descending field value.
      DESCENDING = 2
    end

    # The supported array value configurations.
    module ArrayConfig
      # The index does not support additional array queries.
      ARRAY_CONFIG_UNSPECIFIED = 0

      # The index supports array containment queries.
      CONTAINS = 1
    end
  end

  # Query Scope defines the scope at which a query is run. This is specified on
  # a StructuredQuery's `from` field.
  module QueryScope
    # The query scope is unspecified. Not a valid option.
    QUERY_SCOPE_UNSPECIFIED = 0

    # Indexes with a collection query scope specified allow queries
    # against a collection that is the child of a specific document, specified
    # at query time, and that has the collection ID specified by the index.
    COLLECTION = 1

    # Indexes with a collection group query scope specified allow queries
    # against all collections that has the collection ID specified by the
    # index.
    COLLECTION_GROUP = 2

    # Include all the collections's ancestor in the index. Only available for
    # Datastore Mode databases.
    COLLECTION_RECURSIVE = 3
  end

  # API Scope defines the APIs (Firestore Native, or Firestore in
  # Datastore Mode) that are supported for queries.
  module ApiScope
    # The index can only be used by the Firestore Native query API.
    # This is the default.
    ANY_API = 0

    # The index can only be used by the Firestore in Datastore Mode query API.
    DATASTORE_MODE_API = 1
  end

  # The state of an index. During index creation, an index will be in the
  # `CREATING` state. If the index is created successfully, it will transition
  # to the `READY` state. If the index creation encounters a problem, the index
  # will transition to the `NEEDS_REPAIR` state.
  module State
    # The state is unspecified.
    STATE_UNSPECIFIED = 0

    # The index is being created.
    # There is an active long-running operation for the index.
    # The index is updated when writing a document.
    # Some index data may exist.
    CREATING = 1

    # The index is ready to be used.
    # The index is updated when writing a document.
    # The index is fully populated from all stored documents it applies to.
    READY = 2

    # The index was being created, but something went wrong.
    # There is no active long-running operation for the index,
    # and the most recently finished long-running operation failed.
    # The index is not updated when writing a document.
    # Some index data may exist.
    # Use the google.longrunning.Operations API to determine why the operation
    # that last attempted to create this index failed, then re-create the
    # index.
    NEEDS_REPAIR = 3
  end
end

#state ⇒ ::Google::Cloud::Firestore::Admin::V1::Index::State

Returns Output only. The serving state of the index.

Returns:



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# File 'proto_docs/google/firestore/admin/v1/index.rb', line 61

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

  # A field in an index.
  # The field_path describes which field is indexed, the value_mode describes
  # how the field value is indexed.
  # @!attribute [rw] field_path
  #   @return [::String]
  #     Can be __name__.
  #     For single field indexes, this must match the name of the field or may
  #     be omitted.
  # @!attribute [rw] order
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::Order]
  #     Indicates that this field supports ordering by the specified order or
  #     comparing using =, !=, <, <=, >, >=.
  # @!attribute [rw] array_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::ArrayConfig]
  #     Indicates that this field supports operations on `array_value`s.
  # @!attribute [rw] vector_config
  #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig]
  #     Indicates that this field supports nearest neighbor and distance
  #     operations on vector.
  class IndexField
    include ::Google::Protobuf::MessageExts
    extend ::Google::Protobuf::MessageExts::ClassMethods

    # The index configuration to support vector search operations
    # @!attribute [rw] dimension
    #   @return [::Integer]
    #     Required. The vector dimension this configuration applies to.
    #
    #     The resulting index will only include vectors of this dimension, and
    #     can be used for vector search with the same dimension.
    # @!attribute [rw] flat
    #   @return [::Google::Cloud::Firestore::Admin::V1::Index::IndexField::VectorConfig::FlatIndex]
    #     Indicates the vector index is a flat index.
    class VectorConfig
      include ::Google::Protobuf::MessageExts
      extend ::Google::Protobuf::MessageExts::ClassMethods

      # An index that stores vectors in a flat data structure, and supports
      # exhaustive search.
      class FlatIndex
        include ::Google::Protobuf::MessageExts
        extend ::Google::Protobuf::MessageExts::ClassMethods
      end
    end

    # The supported orderings.
    module Order
      # The ordering is unspecified. Not a valid option.
      ORDER_UNSPECIFIED = 0

      # The field is ordered by ascending field value.
      ASCENDING = 1

      # The field is ordered by descending field value.
      DESCENDING = 2
    end

    # The supported array value configurations.
    module ArrayConfig
      # The index does not support additional array queries.
      ARRAY_CONFIG_UNSPECIFIED = 0

      # The index supports array containment queries.
      CONTAINS = 1
    end
  end

  # Query Scope defines the scope at which a query is run. This is specified on
  # a StructuredQuery's `from` field.
  module QueryScope
    # The query scope is unspecified. Not a valid option.
    QUERY_SCOPE_UNSPECIFIED = 0

    # Indexes with a collection query scope specified allow queries
    # against a collection that is the child of a specific document, specified
    # at query time, and that has the collection ID specified by the index.
    COLLECTION = 1

    # Indexes with a collection group query scope specified allow queries
    # against all collections that has the collection ID specified by the
    # index.
    COLLECTION_GROUP = 2

    # Include all the collections's ancestor in the index. Only available for
    # Datastore Mode databases.
    COLLECTION_RECURSIVE = 3
  end

  # API Scope defines the APIs (Firestore Native, or Firestore in
  # Datastore Mode) that are supported for queries.
  module ApiScope
    # The index can only be used by the Firestore Native query API.
    # This is the default.
    ANY_API = 0

    # The index can only be used by the Firestore in Datastore Mode query API.
    DATASTORE_MODE_API = 1
  end

  # The state of an index. During index creation, an index will be in the
  # `CREATING` state. If the index is created successfully, it will transition
  # to the `READY` state. If the index creation encounters a problem, the index
  # will transition to the `NEEDS_REPAIR` state.
  module State
    # The state is unspecified.
    STATE_UNSPECIFIED = 0

    # The index is being created.
    # There is an active long-running operation for the index.
    # The index is updated when writing a document.
    # Some index data may exist.
    CREATING = 1

    # The index is ready to be used.
    # The index is updated when writing a document.
    # The index is fully populated from all stored documents it applies to.
    READY = 2

    # The index was being created, but something went wrong.
    # There is no active long-running operation for the index,
    # and the most recently finished long-running operation failed.
    # The index is not updated when writing a document.
    # Some index data may exist.
    # Use the google.longrunning.Operations API to determine why the operation
    # that last attempted to create this index failed, then re-create the
    # index.
    NEEDS_REPAIR = 3
  end
end