Class: Google::Firestore::V1beta1::StructuredQuery

Inherits:
Object
  • Object
show all
Defined in:
lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb

Overview

A Firestore query.

Defined Under Namespace

Modules: Direction Classes: CollectionSelector, CompositeFilter, FieldFilter, FieldReference, Filter, Order, Projection, UnaryFilter

Instance Attribute Summary collapse

Instance Attribute Details

#end_atGoogle::Firestore::V1beta1::Cursor

Returns A end point for the query results.

Returns:



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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end

#fromArray<Google::Firestore::V1beta1::StructuredQuery::CollectionSelector>

Returns The collections to query.

Returns:



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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end

#limitGoogle::Protobuf::Int32Value

Returns The maximum number of results to return.

Applies after all other constraints. Must be >= 0 if specified.

Returns:

  • (Google::Protobuf::Int32Value)

    The maximum number of results to return.

    Applies after all other constraints. Must be >= 0 if specified.



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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end

#offsetInteger

Returns The number of results to skip.

Applies before limit, but after all other constraints. Must be >= 0 if specified.

Returns:

  • (Integer)

    The number of results to skip.

    Applies before limit, but after all other constraints. Must be >= 0 if specified.



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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end

#order_byArray<Google::Firestore::V1beta1::StructuredQuery::Order>

Returns The order to apply to the query results.

Firestore guarantees a stable ordering through the following rules:

  • Any field required to appear in order_by, that is not already specified in order_by, is appended to the order in field name order by default.
  • If an order on __name__ is not specified, it is appended by default.

Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example:

  • SELECT * FROM Foo ORDER BY A becomes SELECT * FROM Foo ORDER BY A, __name__
  • SELECT * FROM Foo ORDER BY A DESC becomes SELECT * FROM Foo ORDER BY A DESC, __name__ DESC
  • SELECT * FROM Foo WHERE A > 1 becomes SELECT * FROM Foo WHERE A > 1 ORDER BY A, __name__

Returns:

  • (Array<Google::Firestore::V1beta1::StructuredQuery::Order>)

    The order to apply to the query results.

    Firestore guarantees a stable ordering through the following rules:

    • Any field required to appear in order_by, that is not already specified in order_by, is appended to the order in field name order by default.
    • If an order on __name__ is not specified, it is appended by default.

    Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example:

    • SELECT * FROM Foo ORDER BY A becomes SELECT * FROM Foo ORDER BY A, __name__
    • SELECT * FROM Foo ORDER BY A DESC becomes SELECT * FROM Foo ORDER BY A DESC, __name__ DESC
    • SELECT * FROM Foo WHERE A > 1 becomes SELECT * FROM Foo WHERE A > 1 ORDER BY A, __name__


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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end

#selectGoogle::Firestore::V1beta1::StructuredQuery::Projection

Returns The projection to return.

Returns:



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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end

#start_atGoogle::Firestore::V1beta1::Cursor

Returns A starting point for the query results.

Returns:



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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end

#whereGoogle::Firestore::V1beta1::StructuredQuery::Filter

Returns The filter to apply.

Returns:



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# File 'lib/google/cloud/firestore/v1beta1/doc/google/firestore/v1beta1/query.rb', line 67

class StructuredQuery
  # A selection of a collection, such as `messages as m1`.
  # @!attribute [rw] collection_id
  #   @return [String]
  #     The collection ID.
  #     When set, selects only collections with this ID.
  # @!attribute [rw] all_descendants
  #   @return [true, false]
  #     When false, selects only collections that are immediate children of
  #     the `parent` specified in the containing `RunQueryRequest`.
  #     When true, selects all descendant collections.
  class CollectionSelector; end

  # A filter.
  # @!attribute [rw] composite_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter]
  #     A composite filter.
  # @!attribute [rw] field_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter]
  #     A filter on a document field.
  # @!attribute [rw] unary_filter
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter]
  #     A filter that takes exactly one argument.
  class Filter; end

  # A filter that merges multiple other filters using the given operator.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::CompositeFilter::Operator]
  #     The operator for combining multiple filters.
  # @!attribute [rw] filters
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::Filter>]
  #     The list of filters to combine.
  #     Must contain at least one filter.
  class CompositeFilter
    # A composite filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # The results are required to satisfy each of the combined filters.
      AND = 1
    end
  end

  # A filter on a specific field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to filter by.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldFilter::Operator]
  #     The operator to filter by.
  # @!attribute [rw] value
  #   @return [Google::Firestore::V1beta1::Value]
  #     The value to compare to.
  class FieldFilter
    # A field filter operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Less than. Requires that the field come first in `order_by`.
      LESS_THAN = 1

      # Less than or equal. Requires that the field come first in `order_by`.
      LESS_THAN_OR_EQUAL = 2

      # Greater than. Requires that the field come first in `order_by`.
      GREATER_THAN = 3

      # Greater than or equal. Requires that the field come first in
      # `order_by`.
      GREATER_THAN_OR_EQUAL = 4

      # Equal.
      EQUAL = 5

      # Contains. Requires that the field is an array.
      ARRAY_CONTAINS = 7
    end
  end

  # A filter with a single operand.
  # @!attribute [rw] op
  #   @return [Google::Firestore::V1beta1::StructuredQuery::UnaryFilter::Operator]
  #     The unary operator to apply.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to which to apply the operator.
  class UnaryFilter
    # A unary operator.
    module Operator
      # Unspecified. This value must not be used.
      OPERATOR_UNSPECIFIED = 0

      # Test if a field is equal to NaN.
      IS_NAN = 2

      # Test if an exprestion evaluates to Null.
      IS_NULL = 3
    end
  end

  # An order on a field.
  # @!attribute [rw] field
  #   @return [Google::Firestore::V1beta1::StructuredQuery::FieldReference]
  #     The field to order by.
  # @!attribute [rw] direction
  #   @return [Google::Firestore::V1beta1::StructuredQuery::Direction]
  #     The direction to order by. Defaults to `ASCENDING`.
  class Order; end

  # A reference to a field, such as `max(messages.time) as max_time`.
  # @!attribute [rw] field_path
  #   @return [String]
  class FieldReference; end

  # The projection of document's fields to return.
  # @!attribute [rw] fields
  #   @return [Array<Google::Firestore::V1beta1::StructuredQuery::FieldReference>]
  #     The fields to return.
  #
  #     If empty, all fields are returned. To only return the name
  #     of the document, use `['__name__']`.
  class Projection; end

  # A sort direction.
  module Direction
    # Unspecified.
    DIRECTION_UNSPECIFIED = 0

    # Ascending.
    ASCENDING = 1

    # Descending.
    DESCENDING = 2
  end
end