On Sep 1, 2009, at 12:50 AM, Richard Wallace wrote:
> 2009/8/31 Felipe Gaúcho <fgaucho_at_gmail.com>:
>> so, I am thinking to include an href in each of my response
>> elements..
>> following the strict HATEOS principle..
>>
>> at least to have an hypertext reference on the root elements...
>>
>> How it is the most effective way of doing that ?
>>
>
> Something that I've done in the past is create a Link class that is
> JAXB annotated like
>
> public class Link {
> @XmlAttribute private final String href;
> @XmlAttribute private final String rel;
> @XmlElement private final String value;
>
> // ctor, builders and getters omitted
> }
>
> Then you can use it in other representations like
>
> @XmlRootElement
> class MyRepresentation {
> @XmlElement private final Link self;
>
> MyRepresentation(MyObject o, UriBuilder uriBuilder) {
> self =
> Link
> .href
> (uriBuilder.path(MyResource.class).build(o.getName())).rel("self");
> }
> }
>
Yes, and recall that you can use UriInfo to get the previously matched
URIs of super resources as well.
Brett proposed a different solution using JAXB and some AOP:
http://markmail.org/search/?q=list%3Anet.java.dev.jersey.users+Dargan#query
:list%3Anet.java.dev.jersey.users%20Dargan+page:1+mid:tw5grz5mamd2fey6+state:results
There are likely to be other ways using JAXB serialization
extensibility.
This is an area we need to improve on, I have just not had the
sustained to focus on this important area yet. In general it may be
harder to provide a generic solution than a solution that is specific
to JAXB.
Paul.
> But that's only applicable if you're using JAXB. If not, then I would
> imagine you could use some similar strategy as long as you can get
> access to the UriBuilder, know the values you want to substitute into
> the path and you know the resource class you are building the path to.
>
>> other: should I include a full http URL like
>> "http://resouce/path1/path2" or just the paths ? like "path1/path2" ?
I recommend placing absolute URIs with host information, as this will
make it easier for the client.
Paul.
>>
>> --
>> Looking for a client application for this service:
>> http://fgaucho.dyndns.org:8080/footprint-service/wadl
>>
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>>
>
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