smtlaissezfaire / odb

ODB¶ ↑

The ruby object database

Notes:¶ ↑

This stuff is still in pre-alpha. Don’t expect it to work for anything useful just quite yet.

Installation¶ ↑

./bin/odb-install

Usage¶ ↑

Process 1¶ ↑

# Set up ODB
require 'lib/odb'
Odb.path = "."

# Load your classes, data
class Foo
  attr_accessor :bar
end

f = Foo.new
f.bar = "a_value"
a = [1, "bar", f]

# store your data
Odb::Object.write(a) #=> 4 (the object_id)

Process 2¶ ↑

# Set up ODB
require 'lib/odb'
Odb.path = "."

# Load your classes
class Foo
  attr_accessor :bar
end

# Read + Write your data
>> a = Odb::Object.read(4)
=> [object_id:0, object_id:1, object_id:3]
>> a[0]
=> 1
>> a[1]
=> "bar"
>> a[2]
=> #<Foo:0x10115d018 @bar="a_value">

Bugs¶ ↑

• User written C classes not supported

• Any class which doesn’t return the class name with “to_s” won’t be loadable.

• No support for anything Marshal doesn’t support: Classes, Procs, Lambdas, Methods, UnboundMethods