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_at ⇒ Google::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 66

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

#from ⇒ Array<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 66

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

#limit ⇒ Google::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 66

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

#offset ⇒ Integer

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 66

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_by ⇒ Array<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 66

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

#select ⇒ Google::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 66

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_at ⇒ Google::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 66

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

#where ⇒ Google::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 66

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