Class: FlatKit::SentinelLeafNode

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/flat_kit/sentinel_leaf_node.rb

Overview

Private: The Sentinel Leaf Node is used internally by the MergeTree

This class represents a LeafNode that has no more data

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#next_level ⇒ Object

Returns the value of attribute next_level.



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# File 'lib/flat_kit/sentinel_leaf_node.rb', line 9

def next_level
  @next_level
end

Instance Method Details

#<=>(other) ⇒ Object

A sentinal node is always greater than any other node



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# File 'lib/flat_kit/sentinel_leaf_node.rb', line 32

def <=>(other)
  return 0 if other.sentinel?
  return 1
end

#finished? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/flat_kit/sentinel_leaf_node.rb', line 23

def finished?
  true
end

#leaf? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/flat_kit/sentinel_leaf_node.rb', line 15

def leaf?
  true
end

#next ⇒ Object 



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# File 'lib/flat_kit/sentinel_leaf_node.rb', line 19

def next
  nil
end

#sentinel? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/flat_kit/sentinel_leaf_node.rb', line 11

def sentinel?
  true
end

#value ⇒ Object 



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# File 'lib/flat_kit/sentinel_leaf_node.rb', line 27

def value
  nil
end