Class: Rospatent::NullCache

Inherits:

Object

• Object
• Rospatent::NullCache

Defined in:

lib/rospatent/cache.rb

Overview

Null cache implementation for when caching is disabled

Instance Method Summary

• #cleanup_expired ⇒ Object
• #clear ⇒ Object
• #delete(_key) ⇒ Object
• #empty? ⇒ Boolean
• #fetch(_key, default_value = nil, ttl: nil) ⇒ Object
• #get(_key) ⇒ Object
• #key?(_key) ⇒ Boolean
• #set(_key, value, ttl: nil) ⇒ Object
• #size ⇒ Object
• #statistics ⇒ Object

Instance Method Details

#cleanup_expired ⇒ Object

# File 'lib/rospatent/cache.rb', line 270

def cleanup_expired
  0
end

#clear ⇒ Object

# File 'lib/rospatent/cache.rb', line 246

def clear
  # no-op
end

#delete(_key) ⇒ Object

# File 'lib/rospatent/cache.rb', line 242

def delete(_key)
  nil
end

#empty? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/rospatent/cache.rb', line 254

def empty?
  true
end

#fetch(_key, default_value = nil, ttl: nil) ⇒ Object

# File 'lib/rospatent/cache.rb', line 274

def fetch(_key, default_value = nil, ttl: nil)
  if default_value
    default_value
  elsif block_given?
    yield
  end
end

#get(_key) ⇒ Object

# File 'lib/rospatent/cache.rb', line 230

def get(_key)
  nil
end

#key?(_key) ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/rospatent/cache.rb', line 238

def key?(_key)
  false
end

#set(_key, value, ttl: nil) ⇒ Object

# File 'lib/rospatent/cache.rb', line 234

def set(_key, value, ttl: nil)
  value
end

#size ⇒ Object

# File 'lib/rospatent/cache.rb', line 250

def size
  0
end

#statistics ⇒ Object

# File 'lib/rospatent/cache.rb', line 258

def statistics
  {
    hits: 0,
    misses: 0,
    evictions: 0,
    expired: 0,
    size: 0,
    total_requests: 0,
    hit_rate_percent: 0
  }
end