Class: VORuby::ADQL::Where

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

Overview

Represents the Where part of the query.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(condition) ⇒ Where

Returns a new instance of Where.



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# File 'lib/voruby/adql/adql.rb', line 2027

def initialize(condition)
  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 2025

def condition
  @condition
end

Class Method Details

.from_xml(node) ⇒ Object 



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# File 'lib/voruby/adql/adql.rb', line 2040

def self.from_xml(node)
  cond_node = REXML::XPath.first(node, 'Condition')
  cond = Condition.from_xml(cond_node)
  return Where.new(cond)
end

Instance Method Details

#find_condition(type, attributes) ⇒ Object

This method finds a condition given its attributes and it returns it



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# File 'lib/voruby/adql/adql.rb', line 2047

def find_condition(type, attributes)
  return self.condition.find_condition(type, attributes)
end

#modify_condition(type, attributes_old, attributes_new) ⇒ Object

This method modify a condition given its old attributtes, replacing the old attributes with the new attributes.



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# File 'lib/voruby/adql/adql.rb', line 2067

def modify_condition(type, attributes_old, attributes_new)
  self.condition = self.condition.modify_condition(type, attributes_old, attributes_new)
end

#remove_condition(type, attributes) ⇒ Object

This method removes a condition. -1 means that the condition must be removed. 1 means that the condition given its attributes wasn’t found. The other case is that the condition was changed in another place, for example could have been removed in the intersectionSearchType called.



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# File 'lib/voruby/adql/adql.rb', line 2056

def remove_condition(type, attributes)
  condition = self.condition.remove_condition(type, attributes)
  if condition == -1
    self.condition = nil
  elsif condition != 1
    self.condition = condition
  end
end

#replace_condition(type, attributes, new_condition) ⇒ Object

This method replaces a condition for a new condition. -1 means that the condition must be replaced. 1 means that the old condition in this case wasn’t found so that the old condition won’t be replaced. The other case is that the condition was changed in another place, for example could have been replaced in the intersectionSearchType called.



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# File 'lib/voruby/adql/adql.rb', line 2077

def replace_condition(type, attributes, new_condition)
  condition = self.condition.replace_condition(type, attributes, new_condition)
  if condition == -1
    self.condition = new_condition
  elsif condition != 1
    self.condition = condition
  end
end

#to_adqls ⇒ Object 



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# File 'lib/voruby/adql/transforms.rb', line 392

def to_adqls
  "WHERE #{self.condition.to_adqls}" if self.condition
end

#to_adqlx ⇒ Object 



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# File 'lib/voruby/adql/transforms.rb', line 396

def to_adqlx
  if self.condition
    where = "<Where>\n"
    where << self.condition.to_adqlx
    where << "\n</Where>\n"
    return where
  end
end

#to_s ⇒ Object 



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# File 'lib/voruby/adql/adql.rb', line 2036

def to_s
  "{condition=#{self.condition}}"
end