Class: Mongo::QueryCache::Middleware

Inherits:

Object

• Object
• Mongo::QueryCache::Middleware

Defined in:

build/ruby-driver-v2.17/lib/mongo/query_cache.rb

Overview

Rack middleware that activates the query cache for each request.

Instance Method Summary

• #call(env) ⇒ Object

  Enable query cache and execute the request.

• #initialize(app) ⇒ Middleware constructor

  Instantiate the middleware.

Constructor Details

#initialize(app) ⇒ Middleware

Instantiate the middleware.

Examples:

Create the new middleware.

Middleware.new(app)

Parameters:

• app (Object) —

  The rack application stack.

# File 'build/ruby-driver-v2.17/lib/mongo/query_cache.rb', line 254

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object

Enable query cache and execute the request.

Examples:

Execute the request.

middleware.call(env)

Parameters:

• env (Object) —

  The environment.

Returns:

• (Object) —

  The result of the call.

# File 'build/ruby-driver-v2.17/lib/mongo/query_cache.rb', line 266

def call(env)
  QueryCache.cache do
    @app.call(env)
  end
ensure
  QueryCache.clear
end