Sha256: 68c8afdf234e951fb1256b7585f922d5d2c0e64c93fd4b6045e1d13ae6f194f7
Contents?: true
Size: 1.88 KB
Versions: 1
Compression:
Stored size: 1.88 KB
Contents
= DeepDive Deep Contolled Cloning When you have a system of objects that have many references to each other, it becomes an issue to be able to clone properly that object graph. There may be control objects you may not want to clone, but maintain references to. And some references you may not wish to clone at all. Enter DeepDive. Allows you a means by which you can do controlled deep cloning or copying of your complex interconnected objects. == Usage Simply include DeepDive in your base class. All classes derived will be set for deep cloning or deep duping. == Examples class FooBase include DeepDive exclude :c end Even though the instance variable @c is not defined in the base class, any instance variables with that name in the subclasses will be excluded from the deep clone or duping. It will simply use the reference to that object instead (a.k.a shallow copying) class Foo < FooBase attr_accessor :a, :b, :c, :changeme end class Bar < FooBase attr_accessor :a, :b, :c, :changeme end class FooBar < FooBase attr_accessor :a, :b, :c, :changeme, :dontcopy, :arr, :hsh, :nonddob exclude :dontcopy end @foo = Foo.new @bar = Bar.new @foobar = FooBar.new @foobar.arr = [@foo, @bar, @foobar, "Just a string"] @foobar.hsh = {foo: @foo, bar: @bar, foobar: @foobar, nonddob: "just a string"} @foo.a = 'foo just around' @bar.a = 'bar hanging around' @foo.b = @bar @bar.b = @foo @foo.c = @bar.c = @foobar.c = @foobar @foo.changeme = @bar.changeme = @foobar.changeme = "initial" So now if you do: nfoo = @foo.dclone @foo.c will refer to the same object as nfoo.c, but @foo.b and nfoo.b will be different, as nfoo.b will be a clone of @foo.b. Please see spec/lib/deep_dive/deep_dive_spec.rb for a more comprehensve example of the above. Better documentation will be supplied shortly. == Copyright Copyright (c) 2013 Fred Mitchell. See LICENSE.txt for further details.
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
---|---|
deep_dive-0.0.4 | README.rdoc |