MethodParameters now has a getParametersOfType(…) method to access parameters by type. Also, it now checks for the presence of Spring 4 and automatically uses the improved ParameterNameDiscoverer which will be able to discover interface method parameter names on Java 8.
Added LinkTemplate domain type that can deal with URI templates as defined in http://tools.ietf.org/html/rfc6570. We currently support /, ?, & and # variables up to level 3 of the spec (multiple parameter definitions). The templates can be expanded to a Link instance.
Added the necessary HAL mixins to render the instances as specified.
If the method arguments handed into a dummy controller method invocation are required but null we now throw an exception as we cannot build a URI that hits the very same method in the very same way. Based on that, we now inspect @RequestParam annotated parameters for null values, allow them but don't bind a parameter for them anymore.
Both _links and _embedded are now only rendered if there's actual content to be rendered. The curies link is now always rendered as array as specified.
The LinkDiscoverer interface is now a Plugin<MediaType> to allow selecting a discoverer per media type. We also provide a LinkDiscoverers wrapper around a PluginRegistry for easier injection.
Dropped DefaultLinkDiscoverer as the above mentioned changed prohibits the usage of a discoverer without a media type. Clients that previously used DefaultLinkDiscoverer should switch to JsonPathLinkDiscoverer with a custom JsonPath expression and media type.
@EnableHypermediaSupport now supports multiple HypermediaType values set to be able to set up support for multiple hypermedia formats. Admittedly, the only currently supported type is HAL but we prepare for the addition of other (e.g. Collection/JSON or the like). We changed the infrastructure setup taken care of by @EnableHypermediaSupport to not enrich all ObjectMapper instances with our HAL modules but explicitly register an ObjectMapper with the application context and then registering a custom MappingJackson(2)HttpMessageConverter with the HandlerAdapter instances present in the ApplicationContext. We skip the registration if an already registered MJ2HMC has an ObjectMapper already supporting the Spring HATEOAS mixins.
Removed some compiler warnings.
Introduced CurieProvider interface as well as a DefaultCurieProvider that can be registered as Spring Bean to enable Links being rendered in a curie namespace and an additional curie link exposing the metadata of how to lookup the rel definition.
Deprecated Jackson 1 integration. Added helper class to find out whether a relation type is defined by the IANA.
PageMetadata doesn't reject empty pages anymore if they're used with 1-indexed Pageables. Also tweaked the assertions to only reject negative values for now.
MethodParameters can now get an AnnotationAttribute configured that will be inspected for parameter name lookup. If it's not set or no annotated parameter is found we fall back to the standard behavior of MethodParameter and use a LocalVariableTableParameterNameDiscoverer.
We need to have a different XML element name for PagedResources as it can be used as root element and JAXB cannot tell the difference between Resource and PagedResource otherwise.
ControllerLinkBuilder now correctly uses the X-Fowarded-Host header by inspecting it for a port being set and configuring the discovered one on the ServletUriComponentsBuilder created.
Also added that the first host listed in the header is used.
Removed JsonAutoDetect annotations from PagedResources as the reference to Visibility was causing compile errors in case one of the 2 Jackson variants was not on the classpath (which by design will usually be the case). Generally, the annotations weren't required anymore so that we could remove them.
Upgraded to Spring 3.2.3 to be able to use inlined CGLib directly. We now use Objenesis to create the proxy instances which avoids the need for a default constructor.
The HeaderLinksResponseEntity wraps any HttpEntity containing a ResourceSupport and will transform it to contain the Links the ResourceSupport instance held in the first place in the entities headers now.
This change is to essentially prevent people from subclassing Resource and call the default constructor which wrecks the assumption of content never being null. For custom resources extend ResourceSupport.
Added missing license header in ResourcesMixin.
When embedding values into HAL representations we now correctly expose the collection relation type as exposed by RelProvider.getCollectionResourceRelFor(…). Added EmbeddedHalBuilder to ease building these kinds of nested maps easily and use the commonly shared code between Jackson 1 and 2 implementations.
Introduced representation models for the application/vnd.error media type as specified in [0]. Added default mapping annotations to get it rendered in XML (via JAXB), and JSON (via Jackson 1 and 2).
[0] https://github.com/blongden/vnd.error
