Class: Dor::VersionTag

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/dor/datastreams/version_metadata_ds.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(maj, min, adm) ⇒ VersionTag

Returns a new instance of VersionTag.



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 21

def initialize(maj, min, adm)
  @major = maj.to_i
  @minor = min.to_i
  @admin = adm.to_i
end

Instance Attribute Details

#admin ⇒ Object (readonly)

Returns the value of attribute admin.



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 5

def admin
  @admin
end

#major ⇒ Object (readonly)

Returns the value of attribute major.



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 5

def major
  @major
end

#minor ⇒ Object (readonly)

Returns the value of attribute minor.



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 5

def minor
  @minor
end

Class Method Details

.parse(raw_tag) ⇒ Object

Parameters:

  • raw_tag (String) —

    the value of the tag attribute from a Version node



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 16

def self.parse(raw_tag)
  return nil unless raw_tag =~ /(\d+)\.(\d+)\.(\d+)/
  VersionTag.new $1, $2, $3
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 7

def <=>(other)
  diff = @major <=> other.major
  return diff if diff != 0
  diff = @minor <=> other.minor
  return diff if diff != 0
  @admin <=> other.admin
end

#increment(sig) ⇒ Object

Parameters:

  • sig (Symbol) —

    which part of the version tag to increment :major, :minor, :admin



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 29

def increment(sig)
  case sig
  when :major
    @major += 1
    @minor = 0
    @admin = 0
  when :minor
    @minor += 1
    @admin = 0
  when :admin
    @admin += 1
  end
  self
end

#to_s ⇒ Object 



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# File 'lib/dor/datastreams/version_metadata_ds.rb', line 44

def to_s
  "#{@major}.#{@minor}.#{admin}"
end