Hi, 

-> and <- create ordering relationships (like the require and before 
metaparameters)
~> and <~ create notify relationships (like the notify and subscribe 
metaparameters)

You can read more about them at 
http://docs.puppetlabs.com/puppet/2.7/reference/lang_relationships.html#chaining-arrows

Cheers,
Tim


On Saturday, 25 August 2012 at 8:22 PM, NewpTone wrote:

> Hi,I'm studying the puppetlabs-openstack module for deploying openstack, 
> there is sytax confusing me in the manfests file:
> 
> >  Swift::Ringbuilder::Create['object'] -> Ring_object_device <| |> ~> 
> > Swift::Ringbuilder::Rebalance['object']
> 
> I just know -> means notify ,but what does <| |> ~>mean? I didn't find the 
> related document on the puppet site.
> I really appreciate if  anyone can help me.
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