Class: Rubyang::Xpath::BasicType::NodeSet

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/rubyang/xpath.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value = []) ⇒ NodeSet

Returns a new instance of NodeSet.



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# File 'lib/rubyang/xpath.rb', line 15

def initialize value=[]
  raise "#{self.class} argument must be Array but #{value.class}" unless Array === value
  value.each{ |v|
    unless Rubyang::Database::DataTree::Node === v
      raise "#{self.class} argument must be Rubyang::Database::DataTree::Node but #{v.class}"
    end
  }
  @value = value
end

Instance Attribute Details

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/rubyang/xpath.rb', line 14

def value
  @value
end

Instance Method Details

#!=(right) ⇒ Object 



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# File 'lib/rubyang/xpath.rb', line 67

def != right
  value = ! (self == right).value
  Boolean.new value
end

#==(right) ⇒ Object 



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# File 'lib/rubyang/xpath.rb', line 36

def == right
  @value.each{ |v|
    unless Rubyang::Database::DataTree::Leaf === v
      raise "#{self.class} argument must be Rubyang::Database::DataTree::Leaf but #{v.class}"
    end
  }
  case right
  when NodeSet
    right.value.each{ |v|
      unless Rubyang::Database::DataTree::Leaf === v
        raise "#{right.class} argument must be Rubyang::Database::DataTree::Leaf but #{v.class}"
      end
    }
    value = if (@value.map{ |v| v.value } & right.value.map{ |v| v.value }).size > 0 then true else false end
    Boolean.new value
  when Boolean
    value = if @value.size > 0
              if right.value then true else false end
            else
              if right.value then false else true end
            end
    Boolean.new value
  when Number
    value = @value.any?{ |v| Float(v.value) == right.value rescue false }
    Boolean.new value
  when String
    value = @value.any?{ |v| v.value == right.value }
    Boolean.new value
  end
end

#each ⇒ Object 



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# File 'lib/rubyang/xpath.rb', line 25

def each
  @value.each do |v|
    yield v
  end
end

#to_boolean ⇒ Object 



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# File 'lib/rubyang/xpath.rb', line 31

def to_boolean
  value = if @value == [] then false else true end
  Boolean.new value
end