Class: VORuby::ADQL::Order
- Defined in:
- lib/voruby/adql/adql.rb,
lib/voruby/adql/transforms.rb
Overview
Represents the ORDER BY part of a query.
Instance Attribute Summary collapse
-
#expression ⇒ Object
Returns the value of attribute expression.
-
#order ⇒ Object
Returns the value of attribute order.
Class Method Summary collapse
Instance Method Summary collapse
-
#initialize(expression, order = nil) ⇒ Order
constructor
A new instance of Order.
- #to_adqls ⇒ Object
- #to_s ⇒ Object
Constructor Details
#initialize(expression, order = nil) ⇒ Order
Returns a new instance of Order.
2283 2284 2285 2286 |
# File 'lib/voruby/adql/adql.rb', line 2283 def initialize(expression, order=nil) self.expression = expression self.order = order end |
Instance Attribute Details
#expression ⇒ Object
Returns the value of attribute expression.
2281 2282 2283 |
# File 'lib/voruby/adql/adql.rb', line 2281 def expression @expression end |
#order ⇒ Object
Returns the value of attribute order.
2281 2282 2283 |
# File 'lib/voruby/adql/adql.rb', line 2281 def order @order end |
Class Method Details
.from_xml(node) ⇒ Object
2307 2308 2309 2310 2311 2312 2313 |
# File 'lib/voruby/adql/adql.rb', line 2307 def self.from_xml(node) expr_node = REXML::XPath.first(node, 'Expression') expr = Expression.from_xml(expr_node) order_option_node = REXML::XPath.first(node, 'Order') order_option = OrderOption.from_xml(order_option_node) return Order.new(expr, order_option) end |
Instance Method Details
#to_adqls ⇒ Object
460 461 462 463 464 465 466 |
# File 'lib/voruby/adql/transforms.rb', line 460 def to_adqls if self.order "#{self.expression.to_adqls} #{self.order.to_adqls}" else "#{self.expression.to_adqls}" end end |
#to_s ⇒ Object
2303 2304 2305 |
# File 'lib/voruby/adql/adql.rb', line 2303 def to_s "{expression=#{self.expression},order=#{self.order}}" end |