Class: Ferret::Index::SegmentMergeInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/ferret/index/segment_merge_info.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base, term_enum, reader) ⇒ SegmentMergeInfo

Returns a new instance of SegmentMergeInfo.



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# File 'lib/ferret/index/segment_merge_info.rb', line 6

def initialize(base, term_enum, reader)
  @base = base
  @reader = reader
  @term_enum = term_enum
  @term = term_enum.term()
  @postings = @reader.term_positions()

  # build array which maps document numbers around deletions 
  if (@reader.has_deletions?()) 
    max_doc = @reader.max_doc()
    @doc_map = Array.new(max_doc)
    j = 0
    max_doc.times do |i|
      if (@reader.deleted?(i))
        @doc_map[i] = -1
      else
        @doc_map[i] = j
        j += 1
      end
    end
  end
end

Instance Attribute Details

#base ⇒ Object (readonly)

Returns the value of attribute base.



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# File 'lib/ferret/index/segment_merge_info.rb', line 4

def base
  @base
end

#doc_map ⇒ Object (readonly)

Returns the value of attribute doc_map.



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# File 'lib/ferret/index/segment_merge_info.rb', line 4

def doc_map
  @doc_map
end

#postings ⇒ Object (readonly)

Returns the value of attribute postings.



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# File 'lib/ferret/index/segment_merge_info.rb', line 4

def postings
  @postings
end

#reader ⇒ Object (readonly)

Returns the value of attribute reader.



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# File 'lib/ferret/index/segment_merge_info.rb', line 4

def reader
  @reader
end

#term ⇒ Object (readonly)

Returns the value of attribute term.



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# File 'lib/ferret/index/segment_merge_info.rb', line 4

def term
  @term
end

#term_enum ⇒ Object (readonly)

Returns the value of attribute term_enum.



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# File 'lib/ferret/index/segment_merge_info.rb', line 4

def term_enum
  @term_enum
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/ferret/index/segment_merge_info.rb', line 39

def close()
  @term_enum.close()
  @postings.close()
  @reader = nil
end

#next? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ferret/index/segment_merge_info.rb', line 29

def next?
  if @term_enum.next?
    @term = @term_enum.term
    return true
  else 
    @term = nil
    return false
  end
end