Class: Low::Support::PoolHash

Inherits:

Hash

• Object
• Hash
• Low::Support::PoolHash

Defined in:

lib/support/pool_hash.rb

Instance Method Summary

• #add(key, value) ⇒ Object
• #initialize(max_size) ⇒ PoolHash constructor

  A new instance of PoolHash.

Constructor Details

#initialize(max_size) ⇒ PoolHash

Returns a new instance of PoolHash.

# File 'lib/support/pool_hash.rb', line 6

def initialize(max_size)
  @max_size = max_size

  super()
end

Instance Method Details

#add(key, value) ⇒ Object

# File 'lib/support/pool_hash.rb', line 12

def add(key, value)
  # Prune the hash when a new item added.
  shift if size >= @max_size && !key?(key)
  self[key] = value
end