outoftime

CREATE TABLE stats (
    column_name text,
    column_value int,
    test_id uuid,
    score int,
    height int,
    PRIMARY KEY (column_name, column_value, test_id)
);

-- Now let's say we have a logical row with score=20, height=150

outoftime

require 'bundler'
Bundler.require

require 'benchmark'

database = CassandraCQL::Database.new('127.0.0.1:9160')
begin
  database.execute("CREATE KEYSPACE bm_test WITH strategy_class='SimpleStrategy' AND strategy_options:replication_factor=1")
  database.execute("USE bm_test")
  database.execute("CREATE COLUMNFAMILY bm_test (KEY uuid PRIMARY KEY) WITH comparator = uuid AND default_validation = text")

outoftime

#!/usr/bin/env ruby

require 'rubygems'
require 'readline'
require 'yajl'
require 'term/ansicolor'

Color = Object.new
Color.extend(Term::ANSIColor)

outoftime

var SortedSet = function () {
  // your code here...
}

var set = new SortedSet()
set.add(3).add(1).add(3).add(5).add(8).add(-4).add(6)
var answer = [-4, 1, 3, 5, 6, 8]
if (set.toArray() < answer || set.toArray() > answer) {
  console.log("Got ", set.toArray())
  process.exit(1)

outoftime

connection = Cequel.connect(...)
table = connection.schema.read_table(:assessors)

my_data.each do |row|
  typecast_row = {}
  row.each_pair do |column_name, value|
    typecast_row[column_name] = table.column(column_name).cast(value)
  end
  connection[:assessors].insert(typecast_row)
end

outoftime

FROM           TO          ALLOWED?
===================================
ascii      ->  blob        true
ascii      ->  boolean     false
ascii      ->  decimal     false
ascii      ->  double      false
ascii      ->  inet        false
ascii      ->  int         false
ascii      ->  float       false
ascii      ->  bigint      false

outoftime

Mat Brown

Contact details

• Twitter: @0utoftime
• Website or Blog: http://github.com/outoftime
• Company: Rap Genius http://rapgenius.com

Speaker bio

outoftime

class Object
  def clip
    string = to_s
    IO.popen('pbcopy', 'w') { |io| io << string }
    string
  end
end

outoftime

#
# Monkeypatching gem dependencies is a fact of life. But it's dangerous, because *any* update
# to a library might change internals that your patch depends on. This little snippet allows you
# to leave "reminders" in your code that you're relying on a particular version of a gem, and blows
# up if the gem loaded at runtime doesn't fit the requirement.
#
# Example:
#
# monkeypatch('awesome_lib', '1.2.2') do
#   module AwesomeLib

outoftime

class Trie
  include Enumerable

  def initialize
    @leaf, @children = false, {}
  end

  def <<(value)
    add_enum(value_to_enum(value))
  end