Class: Mongoose::IDColumn

Inherits:
IndexedColumn show all
Extended by:
Forwardable
Defined in:
lib/mongoose/column.rb

Overview

IDColumn class

Instance Attribute Summary

Attributes inherited from IndexedColumn

#idx, #index_file_name

Attributes inherited from BaseColumn

#data_type, #name, #required, #tbl_class

Instance Method Summary collapse

Methods inherited from IndexedColumn

#close, #index_file_out_of_date?, #init_index, #with_index_file

Methods inherited from BaseColumn

#close, create, #indexed?, #required?, valid_data_type?

Constructor Details

#initialize(tbl_class, name, col_def) ⇒ IDColumn

Returns a new instance of IDColumn.



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# File 'lib/mongoose/column.rb', line 226

def initialize(tbl_class, name, col_def)
  @idx = {}
  super
end

Instance Method Details

#add_index_rec(id, fpos) ⇒ Object 



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# File 'lib/mongoose/column.rb', line 249

def add_index_rec(id, fpos)
  @idx[id] = fpos
end

#clear_index ⇒ Object 



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# File 'lib/mongoose/column.rb', line 231

def clear_index
  @idx = {}
end

#rebuild_index_file ⇒ Object 



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# File 'lib/mongoose/column.rb', line 235

def rebuild_index_file
  with_index_file('w') { |fptr| fptr.write(Marshal.dump(@idx)) }
end

#rebuild_index_from_index_file ⇒ Object 



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# File 'lib/mongoose/column.rb', line 244

def rebuild_index_from_index_file
  clear_index
  with_index_file { |fptr| @idx = Marshal.load(fptr) }
end

#rebuild_index_from_table ⇒ Object 



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# File 'lib/mongoose/column.rb', line 239

def rebuild_index_from_table
  clear_index
  @tbl_class.get_all_recs { |rec, fpos| add_index_rec(rec[0], fpos) }
end

#remove_index_rec(id) ⇒ Object 



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# File 'lib/mongoose/column.rb', line 253

def remove_index_rec(id)
  @idx.delete(id)
end