Class: Juno::Adapters::LevelDB

Inherits:
Memory show all
Defined in:
lib/juno/adapters/leveldb.rb

Overview

LevelDB backend

Instance Method Summary collapse

Methods inherited from Memory

#delete, #load, #store

Methods inherited from Base

#[], #[]=, #fetch

Constructor Details

#initialize(options = {}) ⇒ LevelDB

Constructor

Options:

  • :dir - Database path

  • All other options passed to LevelDB::DB#new

Raises:

  • (ArgumentError) 


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# File 'lib/juno/adapters/leveldb.rb', line 15

def initialize(options = {})
  raise ArgumentError, 'Option :dir is required' unless options[:dir]
  @memory = ::LevelDB::DB.new(options[:dir])
end

Instance Method Details

#clear(options = {}) ⇒ Object 



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# File 'lib/juno/adapters/leveldb.rb', line 24

def clear(options = {})
  @memory.each {|k,v| delete(k, options) }
  self
end

#close ⇒ Object 



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# File 'lib/juno/adapters/leveldb.rb', line 29

def close
  @memory.close
  nil
end

#key?(key, options = {}) ⇒ Boolean 



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# File 'lib/juno/adapters/leveldb.rb', line 20

def key?(key, options = {})
  @memory.includes?(key)
end