Class: FDB::KeySelector

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(key, or_equal, offset) ⇒ KeySelector

Returns a new instance of KeySelector.



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# File 'lib/fdbimpl.rb', line 672

def initialize(key, or_equal, offset)
  @key = key
  @or_equal = or_equal
  @offset = offset
end

Instance Attribute Details

#key ⇒ Object (readonly)

Returns the value of attribute key.



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# File 'lib/fdbimpl.rb', line 670

def key
  @key
end

#offset ⇒ Object (readonly)

Returns the value of attribute offset.



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# File 'lib/fdbimpl.rb', line 670

def offset
  @offset
end

#or_equal ⇒ Object (readonly)

Returns the value of attribute or_equal.



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# File 'lib/fdbimpl.rb', line 670

def or_equal
  @or_equal
end

Class Method Details

.first_greater_or_equal(key) ⇒ Object 



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# File 'lib/fdbimpl.rb', line 690

def self.first_greater_or_equal(key)
  self.new(key, 0, 1)
end

.first_greater_than(key) ⇒ Object 



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# File 'lib/fdbimpl.rb', line 686

def self.first_greater_than(key)
  self.new(key, 1, 1)
end

.last_less_or_equal(key) ⇒ Object 



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# File 'lib/fdbimpl.rb', line 682

def self.last_less_or_equal(key)
  self.new(key, 1, 0)
end

.last_less_than(key) ⇒ Object 



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# File 'lib/fdbimpl.rb', line 678

def self.last_less_than(key)
  self.new(key, 0, 0)
end

Instance Method Details

#+(offset) ⇒ Object 



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# File 'lib/fdbimpl.rb', line 694

def +(offset)
  KeySelector.new(@key, @or_equal, @offset + offset)
end

#-(offset) ⇒ Object 



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# File 'lib/fdbimpl.rb', line 698

def -(offset)
  KeySelector.new(@key, @or_equal, @offset - offset)
end