Class: VORuby::VOTable::V1_1::FieldRef

Inherits:

Base

• Object
• XML::Object::Base
• Base
• VORuby::VOTable::V1_1::FieldRef

Defined in:

lib/voruby/votable/1.1/votable.rb

Overview

A reference to an existing Field.

Constant Summary

ELEMENT_NAME =

'FIELDref'

Instance Attribute Summary

Attributes inherited from XML::Object::Base

#node

Instance Method Summary

• #field ⇒ Object

  Retrieve the field (Field) associated with this reference.

• #initialize(defn = nil) ⇒ FieldRef constructor

  Create a new field reference.

• #ref ⇒ Object
• #ref=(r) ⇒ Object

Methods inherited from Base

#==, element_name, #get_element, #xpath_for

Methods inherited from XML::Object::Base

#==, element_name, from_file, #to_s

Constructor Details

#initialize(defn = nil) ⇒ FieldRef

Create a new field reference.

fref = FieldRef.new(:ref => 'col3')

# File 'lib/voruby/votable/1.1/votable.rb', line 1655

def initialize(defn=nil)
  super(defn)
end

Instance Method Details

#field ⇒ Object

Retrieve the field (Field) associated with this reference.

# File 'lib/voruby/votable/1.1/votable.rb', line 1668

def field
  field_node = self.node.find_first("ancestor::*/FIELD[@ID='#{self.ref}']")
  field_node ? Field.new(field_node) : nil
end

#ref ⇒ Object

# File 'lib/voruby/votable/1.1/votable.rb', line 1659

def ref
  self.node['ref']
end

#ref=(r) ⇒ Object

# File 'lib/voruby/votable/1.1/votable.rb', line 1663

def ref=(r)
  @node['ref'] = r.to_s
end