Class: Bio::DB

Inherits:
Object
  • Object
show all
Defined in:
lib/bio/db.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.open(filename, *mode, &block) ⇒ Object 



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# File 'lib/bio/db.rb', line 157

def self.open(filename, *mode, &block)
  Bio::FlatFile.open(self, filename, *mode, &block)
end

Instance Method Details

#entry_id ⇒ Object

Returns an entry identifier as a String. This method must be implemented in every database classes by overriding this method.

Raises:

  • (NotImplementedError) 


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# File 'lib/bio/db.rb', line 163

def entry_id
  raise NotImplementedError
end

#exists?(tag) ⇒ Boolean

Returns true or false - wether the entry contains the field of the given tag name.

Returns:

  • (Boolean) 


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# File 'lib/bio/db.rb', line 174

def exists?(tag)
  @orig.include?(tag)
end

#fetch(tag, skip = 0) ⇒ Object

Similar to the get method, however, fetch returns the content of the field without its tag and any extra white spaces stripped.



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# File 'lib/bio/db.rb', line 185

def fetch(tag, skip = 0)
  field = @orig[tag].split(/\n/, skip + 1).last.to_s
  truncate(field.gsub(/^.{0,#{@tagsize}}/,''))
end

#get(tag) ⇒ Object

Returns an intact field of the tag as a String.



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# File 'lib/bio/db.rb', line 179

def get(tag)
  @orig[tag]
end

#tags ⇒ Object

Returns a list of the top level tags of the entry as an Array of String.



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# File 'lib/bio/db.rb', line 168

def tags
  @orig.keys
end