Class: Coradoc::Query::ResultSet

Inherits:

Object

• Object
• Coradoc::Query::ResultSet

Includes:

Enumerable

Defined in:

lib/coradoc/query.rb

Overview

Query result set - collection of matched elements

Instance Attribute Summary

• #elements ⇒ Object readonly

  Returns the value of attribute elements.

Instance Method Summary

• #[](index) ⇒ Object
• #each(&block) ⇒ Object
• #empty? ⇒ Boolean
• #filter(selector) ⇒ Object
• #first ⇒ Object
• #initialize(elements = []) ⇒ ResultSet constructor

  A new instance of ResultSet.

• #inspect ⇒ Object
• #last ⇒ Object
• #length ⇒ Object (also: #size)
• #map(&block) ⇒ Object
• #query(selector) ⇒ Object
• #reject(&block) ⇒ Object
• #select(&block) ⇒ Object
• #to_a ⇒ Object

Constructor Details

#initialize(elements = []) ⇒ ResultSet

Returns a new instance of ResultSet.

# File 'lib/coradoc/query.rb', line 233

def initialize(elements = [])
  @elements = Array(elements).compact
end

Instance Attribute Details

#elements ⇒ Object (readonly)

Returns the value of attribute elements.

# File 'lib/coradoc/query.rb', line 231

def elements
  @elements
end

Instance Method Details

#[](index) ⇒ Object

# File 'lib/coradoc/query.rb', line 241

def [](index)
  @elements[index]
end

#each(&block) ⇒ Object

# File 'lib/coradoc/query.rb', line 237

def each(&block)
  @elements.each(&block)
end

#empty? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/coradoc/query.rb', line 250

def empty?
  @elements.empty?
end

#filter(selector) ⇒ Object

# File 'lib/coradoc/query.rb', line 262

def filter(selector)
  parsed = Selector.parse(selector)
  filtered = @elements.select { |e| parsed.matches?(e) }
  ResultSet.new(filtered)
end

#first ⇒ Object

# File 'lib/coradoc/query.rb', line 254

def first
  @elements.first
end

#inspect ⇒ Object

# File 'lib/coradoc/query.rb', line 291

def inspect
  "#<Coradoc::Query::ResultSet count=#{length}>"
end

#last ⇒ Object

# File 'lib/coradoc/query.rb', line 258

def last
  @elements.last
end

#length ⇒ Object Also known as: size

# File 'lib/coradoc/query.rb', line 245

def length
  @elements.length
end

#map(&block) ⇒ Object

# File 'lib/coradoc/query.rb', line 275

def map(&block)
  ResultSet.new(@elements.map(&block))
end

#query(selector) ⇒ Object

# File 'lib/coradoc/query.rb', line 268

def query(selector)
  results = @elements.flat_map do |element|
    Query.query_within(element, selector).to_a
  end
  ResultSet.new(results.uniq)
end

#reject(&block) ⇒ Object

# File 'lib/coradoc/query.rb', line 283

def reject(&block)
  ResultSet.new(@elements.reject(&block))
end

#select(&block) ⇒ Object

# File 'lib/coradoc/query.rb', line 279

def select(&block)
  ResultSet.new(@elements.select(&block))
end

#to_a ⇒ Object

# File 'lib/coradoc/query.rb', line 287

def to_a
  @elements.dup
end