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Posted to dev@jackrabbit.apache.org by Alexandru Popescu <th...@gmail.com> on 2005/12/02 19:45:30 UTC
mixins and nodes
Hi!
I was asking myself (and searching through the spec, but I couldn't figure out the answer yet):
- if I have node of a specified type: let's call it test:somenode and after creating an instance I
add to it a mixin: mixin:testmixin than all nodes of type test:somenode will have this mixing or
only that specific instance?
thanks in advance,
./alex
--
.w( the_mindstorm )p.
Re: mixins and nodes
Posted by Dominique Jaeggi <do...@day.com>.
a mixin nodetype is explicitely assigned to a node as part of its
jcr:mixinTypes multi-value property. therefore only that one node
carries the additional node type. the spec states:
6.7.4 Primary and Mixin Node Types
In a content repository, every node has one and only one primary node
type. This node type defines, as mentioned, a set of restrictions on the
child items of the node.
In addition to its single primary node type, a node may also have any
number of mixin node types assigned to it. A mixin type is similar to a
primary type in that its definition has the same parameters. It differs,
though, in that it provides additional features to a node, beyond those
defined in the node type proper.
Furthermore, while a primary node type can be “instantiated” as a node
(i.e., that node’s structure is fully defined by its primary node type)
this is not the case with mixin types. A mixin type cannot serve, by
itself, to define the structure of a node; it just adds properties and
child node requirements to a node that already has a primary node type.
A particular supported node type is either a primary type or a mixin
type; it cannot be both.
dom.
Alexandru Popescu wrote:
> Hi!
>
> I was asking myself (and searching through the spec, but I couldn't
> figure out the answer yet):
> - if I have node of a specified type: let's call it test:somenode and
> after creating an instance I add to it a mixin: mixin:testmixin than
> all nodes of type test:somenode will have this mixing or only that
> specific instance?
>
> thanks in advance,
>
> ./alex
> --
> .w( the_mindstorm )p.