Class: DBF::Memo::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/dbf/memo/base.rb

Direct Known Subclasses

Dbase3, Dbase4, Foxpro

Constant Summary collapse

BLOCK_HEADER_SIZE = 
8
BLOCK_SIZE = 
512

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data, version) ⇒ Base

Returns a new instance of Base.



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# File 'lib/dbf/memo/base.rb', line 13

def initialize(data, version)
  @data = data
  @version = version
end

Class Method Details

.open(filename, version) ⇒ Object 



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# File 'lib/dbf/memo/base.rb', line 9

def self.open(filename, version)
  new(File.open(filename, 'rb'), version)
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/dbf/memo/base.rb', line 24

def close
  @data.close && @data.closed?
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dbf/memo/base.rb', line 28

def closed?
  @data.closed?
end

#get(start_block) ⇒ Object 



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# File 'lib/dbf/memo/base.rb', line 18

def get(start_block)
  return nil unless start_block > 0

  build_memo start_block
end