class APICache::AbstractStore
  def initialize
    raise "Method not implemented. Called abstract class."
  end
  
  # Set value. Returns true if success.
  def set(key, value)
    raise "Method not implemented. Called abstract class."
  end
  
  # Get value.
  def get(key)
    raise "Method not implemented. Called abstract class."
  end
  
  # Does a given key exist in the cache?
  def exists?(key)
    raise "Method not implemented. Called abstract class."
  end
  
  # Has a given time passed since the key was set?
  def expired?(key, timeout)
    raise "Method not implemented. Called abstract class."
  end
end