Module: Segment::RangeIndex

Defined in:
lib/rbbt/segment/range_index.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#corpus ⇒ Object

Returns the value of attribute corpus.



2
3
4
 
# File 'lib/rbbt/segment/range_index.rb', line 2

def corpus
  @corpus
end

Class Method Details

.index(segments, corpus = nil, persist_file = :memory) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/rbbt/segment/range_index.rb', line 9

def self.index(segments, corpus = nil, persist_file = :memory)
  segments = segments.values.flatten if Hash === segments

  annotation_index = 
    Persist.persist("Segment_index", :fwt, :persist => (! (persist_file.nil? or persist_file == :memory)), :file => persist_file) do

      value_size = 0
      index_data = segments.collect{|segment| 
        next if segment.offset.nil?
        range = segment.range
        value_size = [segment.segid.length, value_size].max
        [segment.segid, [range.begin, range.end]]
      }.compact

      fwt = FixWidthTable.get :memory, value_size, true
      fwt.add_range index_data

      fwt
    end

  annotation_index.extend Segment::RangeIndex
  annotation_index.corpus = corpus
  annotation_index
end

Instance Method Details

#[](*args) ⇒ Object 



4
5
6
7
 
# File 'lib/rbbt/segment/range_index.rb', line 4

def [](*args)
  res = super(*args)
  SegID.setup(res, :corpus => corpus)
end