Class: Lutaml::Model::CompiledRule

Inherits:
Object
  • Object
show all
Defined in:
lib/lutaml/model/compiled_rule.rb

Overview

Pre-compiled transformation rule for efficient serialization.

A CompiledRule contains all information needed to transform a model attribute into its serialized representation without triggering type resolution or imports during transformation.

CompiledRules are frozen after creation to ensure immutability.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attribute_name:, serialized_name:, attribute_type: nil, child_transformation: nil, value_transformer: nil, collection_info: nil, namespace_class: nil, custom_methods: nil, alias_names: nil, **options) ⇒ CompiledRule

Initialize a new compiled rule

Parameters:

  • attribute_name (Symbol) —

    The attribute name in the model

  • serialized_name (String) —

    The serialized name

  • attribute_type (Symbol, Class, nil) (defaults to: nil) —

    The attribute type

  • child_transformation (Transformation, nil) (defaults to: nil) —

    Pre-compiled child transformation

  • value_transformer (Proc, nil) (defaults to: nil) —

    Value transformation lambda

  • collection_info (Hash, nil) (defaults to: nil) —

    Collection metadata

  • namespace_class (Class, nil) (defaults to: nil) —

    Namespace class for XML

  • custom_methods (Hash) (defaults to: nil) —

    Custom serialization methods (…, from: …)

  • alias_names (Array<String>, nil) (defaults to: nil) —

    Alias names for multiple mappings

  • options (Hash) —

    Additional options



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# File 'lib/lutaml/model/compiled_rule.rb', line 55

def initialize(
  attribute_name:,
  serialized_name:,
  attribute_type: nil,
  child_transformation: nil,
  value_transformer: nil,
  collection_info: nil,
  namespace_class: nil,
  custom_methods: nil,
  alias_names: nil,
  **options
)
  @attribute_name = attribute_name
  @serialized_name = serialized_name
  @attribute_type = attribute_type
  @child_transformation = child_transformation
  @value_transformer = value_transformer
  @collection_info = collection_info
  @namespace_class = namespace_class
  @custom_methods = custom_methods || {}
  @alias_names = alias_names
  @options = options
  freeze
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args) ⇒ Object

Handle method calls for accessing options dynamically

This allows options to be accessed as methods (e.g., rule.cdata, rule.raw, rule.mixed_content) instead of using rule.option(:cdata)

Parameters:

  • method_name (Symbol) —

    The method name to look up

  • args (Array) —

    Arguments (ignored for options)

  • block (Proc) —

    Block (ignored for options)

Returns:

  • (Object) —

    The option value or nil



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# File 'lib/lutaml/model/compiled_rule.rb', line 188

def method_missing(method_name, *args, &)
  # Check if this is an option key
  if options.key?(method_name)
    return options[method_name]
  end

  # Fall back to default method_missing behavior
  super
end

Instance Attribute Details

#alias_names ⇒ Array<String>? (readonly)

Returns Alias names for multiple mappings.

Returns:

  • (Array<String>, nil) —

    Alias names for multiple mappings



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# File 'lib/lutaml/model/compiled_rule.rb', line 41

def alias_names
  @alias_names
end

#attribute_name ⇒ Symbol (readonly)

Returns The attribute name in the model.

Returns:

  • (Symbol) —

    The attribute name in the model



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# File 'lib/lutaml/model/compiled_rule.rb', line 14

def attribute_name
  @attribute_name
end

#attribute_type ⇒ Symbol, ... (readonly)

Returns The attribute type.

Returns:

  • (Symbol, Class, nil) —

    The attribute type



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# File 'lib/lutaml/model/compiled_rule.rb', line 20

def attribute_type
  @attribute_type
end

#child_transformation ⇒ Transformation? (readonly)

Returns Pre-compiled transformation for nested models.

Returns:

  • (Transformation, nil) —

    Pre-compiled transformation for nested models



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# File 'lib/lutaml/model/compiled_rule.rb', line 23

def child_transformation
  @child_transformation
end

#collection_info ⇒ Hash? (readonly)

Returns Collection metadata (range, etc.).

Returns:

  • (Hash, nil) —

    Collection metadata (range, etc.)



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# File 'lib/lutaml/model/compiled_rule.rb', line 29

def collection_info
  @collection_info
end

#custom_methods ⇒ Hash (readonly)

Returns Custom serialization methods (…, from: …).

Returns:

  • (Hash) —

    Custom serialization methods (…, from: …)



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# File 'lib/lutaml/model/compiled_rule.rb', line 38

def custom_methods
  @custom_methods
end

#namespace_class ⇒ Class? (readonly)

Returns Namespace class for XML.

Returns:

  • (Class, nil) —

    Namespace class for XML



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# File 'lib/lutaml/model/compiled_rule.rb', line 32

def namespace_class
  @namespace_class
end

#options ⇒ Hash (readonly)

Returns Additional rule-specific options.

Returns:

  • (Hash) —

    Additional rule-specific options



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# File 'lib/lutaml/model/compiled_rule.rb', line 35

def options
  @options
end

#serialized_name ⇒ String (readonly)

Returns The serialized name (element/key name).

Returns:

  • (String) —

    The serialized name (element/key name)



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# File 'lib/lutaml/model/compiled_rule.rb', line 17

def serialized_name
  @serialized_name
end

#value_transformer ⇒ Proc? (readonly)

Returns Value transformation lambda.

Returns:

  • (Proc, nil) —

    Value transformation lambda



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# File 'lib/lutaml/model/compiled_rule.rb', line 26

def value_transformer
  @value_transformer
end

Instance Method Details

#all_namespaces ⇒ Array<Class>

Collect all namespaces used in this rule and its children

This method recursively traverses child transformations to collect all namespace classes without triggering type resolution.

Returns:

  • (Array<Class>) —

    Array of XmlNamespace classes



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# File 'lib/lutaml/model/compiled_rule.rb', line 119

def all_namespaces
  namespaces = []

  # Add this rule's namespace if present
  namespaces << namespace_class if namespace_class

  # Recursively collect from child transformation
  if child_transformation
    namespaces.concat(child_transformation.all_namespaces)
  end

  namespaces.uniq
end

#collection? ⇒ Boolean

Check if this rule represents a collection

Returns:

  • (Boolean) —

    true if attribute is a collection



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# File 'lib/lutaml/model/compiled_rule.rb', line 83

def collection?
  !collection_info.nil?
end

#collection_range ⇒ Range?

Get collection range if this is a collection

Returns:

  • (Range, nil) —

    Collection range or nil



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# File 'lib/lutaml/model/compiled_rule.rb', line 136

def collection_range
  collection_info&.fetch(:range, nil)
end

#has_custom_methods? ⇒ Boolean

Check if this rule has custom serialization methods

Returns:

  • (Boolean) —

    true if has custom methods



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# File 'lib/lutaml/model/compiled_rule.rb', line 97

def has_custom_methods?
  !custom_methods.empty?
end

#matches_name?(name) ⇒ Boolean

Check if a name matches this rule (including alias names for multiple mappings)

Parameters:

  • name (String, Symbol) —

    The name to check

Returns:

  • (Boolean) —

    true if the name matches serialized_name or any alias



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# File 'lib/lutaml/model/compiled_rule.rb', line 105

def matches_name?(name)
  name_str = name.to_s
  return true if serialized_name == name_str

  # Check alias names for multiple mappings
  alias_names&.any? { |alias_name| alias_name.to_s == name_str } || false
end

#multiple_values? ⇒ Boolean

Check if collection allows multiple values

Returns:

  • (Boolean) —

    true if collection allows more than one value



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# File 'lib/lutaml/model/compiled_rule.rb', line 143

def multiple_values?
  return false unless collection?

  range = collection_range
  return true if range.nil? # unbounded collection

  range.end.nil? || range.end > 1
end

#nested_model? ⇒ Boolean

Check if this rule represents a nested model

Returns:

  • (Boolean) —

    true if attribute is a nested model



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# File 'lib/lutaml/model/compiled_rule.rb', line 90

def nested_model?
  !child_transformation.nil?
end

#option(key, default = nil) ⇒ Object

Get an option value

Parameters:

  • key (Symbol) —

    The option key

  • default (Object) (defaults to: nil) —

    Default value if not found

Returns:

  • (Object) —

    The option value or default



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# File 'lib/lutaml/model/compiled_rule.rb', line 175

def option(key, default = nil)
  options.fetch(key, default)
end

#respond_to_missing?(method_name, include_private = false) ⇒ Boolean

Check if an option or method exists

Parameters:

  • method_name (Symbol) —

    The method name to check

  • include_private (Boolean) (defaults to: false) —

    Whether to include private methods

Returns:

  • (Boolean) —

    true if the method exists



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# File 'lib/lutaml/model/compiled_rule.rb', line 203

def respond_to_missing?(method_name, include_private = false)
  options.key?(method_name) || super
end

#transform_value(value, direction = :export) ⇒ Object

Apply value transformation if present

Parameters:

  • value (Object) —

    The value to transform

  • direction (Symbol) (defaults to: :export) —

    :export or :import

Returns:

  • (Object) —

    Transformed value



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# File 'lib/lutaml/model/compiled_rule.rb', line 157

def transform_value(value, direction = :export)
  return value unless value_transformer

  if value_transformer.is_a?(::Hash)
    transformer = value_transformer[direction]
    transformer ? transformer.call(value) : value
  elsif value_transformer.is_a?(Proc)
    value_transformer.call(value)
  else
    value
  end
end