Class: Icss::Meta::HashSchema

Inherits:
StructuredSchema show all
Defined in:
lib/icss/type/structured_schema.rb,
lib/icss/type.rb

Overview

HashSchema describes an Avro Map type (which corresponds to a Ruby Hash).

Hashes use the type name “hash” (or “map”) and support one attribute:

  • values: the schema of the map’s values. Avro Map keys are assumed to be strings.

@example, a map from string to long is declared with:

{"type": "map", "values": "long"}

Instance Attribute Summary

Attributes inherited from NamedSchema

#is_core

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from NamedSchema

#attrs_to_inscribe, #is_core?, #model_klass

Methods included from ReceiverModel::ActsAsHash

#[], #[]=, #attributes, #delete, included, #keys

Methods included from RecordModel

#attr_set?, included, #receive!, #to_zaml

Class Method Details

.receive(hsh) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/icss/type/structured_schema.rb', line 193

def self.receive(hsh)
  hsh.symbolize_keys!
  warn "Suspicious key :items - hash schema takes :values (#{hsh})" if hsh.has_key?(:items)
  val = super(hsh)
  raise ArgumentError, "Value Factory is no good: #{hsh} - #{val._schema}" if val.values.blank?
  val
end

Instance Method Details

#fullname ⇒ Object 



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# File 'lib/icss/type/structured_schema.rb', line 187

def fullname
  return @fullname if @fullname
  slug = (Type.klassname_for(values) || object_id.to_s).gsub(/^:*Icss:+/, '').gsub(/:+/, 'Dot')
  self.fullname = "HashOf#{slug}"
end

#to_hash ⇒ Object 



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# File 'lib/icss/type/structured_schema.rb', line 200

def to_hash
  { :type => :map, :values => Type.schema_for(values) }
end

#type ⇒ Object 



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# File 'lib/icss/type/structured_schema.rb', line 203

def type() :map ; end