Class: BSON::MinKey

Inherits:
Object
  • Object
show all
Includes:
JSON, Specialized, Comparable
Defined in:
lib/bson/min_key.rb

Overview

Represents a $minKey type, which compares less than any other value in the specification.

See Also:

Since:

  • 2.0.0

Constant Summary collapse

BSON_TYPE =

A $minKey is type 0xFF in the BSON spec.

Since:

  • 2.0.0

::String.new(255.chr, encoding: BINARY).freeze
LESSER =

Constant for always evaluating lesser in a comparison.

Since:

  • 2.0.0

-1

Instance Method Summary collapse

Methods included from Specialized

#==, #to_bson

Methods included from JSON

#to_json

Instance Method Details

#<=>(other) ⇒ Integer

When comparing a min key with any other object, the min key will always be lesser.

Examples:

Compare with another object.

min_key <=> 1000

Parameters:

  • other (Object) —

    The object to compare against.

Returns:

Since:

  • 2.0.0



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# File 'lib/bson/min_key.rb', line 51

def <=>(other)
  LESSER
end

#as_extended_json(**options) ⇒ Hash

Converts this object to a representation directly serializable to Extended JSON (github.com/mongodb/specifications/blob/master/source/extended-json.rst).

Parameters:

  • opts (Hash) —

    a customizable set of options

Returns:

  • (Hash) —

    The extended json representation.

Since:

  • 2.0.0



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# File 'lib/bson/min_key.rb', line 72

def as_extended_json(**options)
  { "$minKey" => 1 }
end

#as_json(*_args) ⇒ Hash

Return a representation of the object for use in application-level JSON serialization. Since BSON::MinKey is used exclusively in BSON-related contexts, this method returns the canonical Extended JSON representation.

Returns:

  • (Hash) —

    The extended json representation.

Since:

  • 2.0.0



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# File 'lib/bson/min_key.rb', line 61

def as_json(*_args)
  as_extended_json
end