Class: VORuby::ADQL::JoinTable

Inherits:
FromTable show all
Defined in:
lib/voruby/adql/adql.rb,
lib/voruby/adql/transforms.rb

Overview

Represents SQL JOIN expression.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(qualifier, tables, condition) ⇒ JoinTable

Returns a new instance of JoinTable.



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# File 'lib/voruby/adql/adql.rb', line 2709

def initialize(qualifier, tables, condition)
  self.qualifier = qualifier
  self.tables = tables
  self.condition = condition
end

Instance Attribute Details

#condition ⇒ Object

Returns the value of attribute condition.



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# File 'lib/voruby/adql/adql.rb', line 2707

def condition
  @condition
end

#qualifier ⇒ Object

Returns the value of attribute qualifier.



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# File 'lib/voruby/adql/adql.rb', line 2707

def qualifier
  @qualifier
end

#tables ⇒ Object

Returns the value of attribute tables.



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# File 'lib/voruby/adql/adql.rb', line 2707

def tables
  @tables
end

Class Method Details

.from_xml(node) ⇒ Object 



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# File 'lib/voruby/adql/adql.rb', line 2739

def self.from_xml(node)
  qual_node = REXML::XPath.first(node, 'Qualifier')
  qual = Qualifier.from_xml(qual_node)
  tables_node = REXML::XPath.first(node, 'Tables')
  tables = Tables.from_xml(tables_node)
  cond_node = REXML::XPath.first(node, 'Condition')
  cond = Condition.from_xml(cond_node)
  return JoinTable.new(qual, tables, cond)
end

Instance Method Details

#to_adqls ⇒ Object 



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# File 'lib/voruby/adql/transforms.rb', line 555

def to_adqls
  "#{self.qualifier.to_adqls} #{self.tables.to_adqls} ON #{self.condition.to_adqls}"
end

#to_s ⇒ Object 



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# File 'lib/voruby/adql/adql.rb', line 2735

def to_s
  "{qualifier=#{self.qualifier},tables=#{self.tables},condition=#{self.condition}}"
end