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https://issues.apache.org/jira/browse/CAUSEWAY-3752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andi Huber updated CAUSEWAY-3752:
---------------------------------
Fix Version/s: 4.0.0
(was: 3.6.0)
> Provide SPI to describe which classes are surfaced by the different viewers.
> ----------------------------------------------------------------------------
>
> Key: CAUSEWAY-3752
> URL: https://issues.apache.org/jira/browse/CAUSEWAY-3752
> Project: Causeway
> Issue Type: New Feature
> Components: Core, Viewer GraphQL, Viewer RO, Viewer Wicket
> Affects Versions: 2.0.0
> Reporter: Daniel Keir Haywood
> Assignee: Daniel Keir Haywood
> Priority: Major
> Fix For: 4.0.0
>
>
> Before releasing 2.0.0/3.0.0, we decided to make
> `@DomainService(nature=VIEW|REST_ONLY)` a no-op , for a couple of reasons:
> * we now have a GraphQL viewer, and the enum didn't seem general enough
> * the REST API has its own rather adhoc mechanism for what to expose:
> public, prototyping or private
> ** but this only affects the Swagger file, not the actual API that's
> actually available
> * the GraphQL viewer has an issue that it takes a loooong time to expose the
> entire API; and probably we wouldn't want to do that.
>
> In removing `@DomainService(nature=...)`, we told ourselves that users could
> just use security; but that doesn't address the above issues.
>
> The proposal is to introduce this SPI:
>
> {code:java}
> enum ViewerType {
> WICKET,
> REST,
> GRAPHQL
> }
> public interface ViewerFilterSpi {
> /**
> * the classes to be
> */
> Optional<List<Class<?>>> include(ViewerType);
>
> Optional<List<Class<?>>> exclude(ViewerType);
> } {code}
>
> This will be used by the different viewers at different stages:
> * by Wicket viewer - when rendering
> * by REST API - when generating swagger + to prevent calls to anything
> that's not specified...
> * by GraphQL - when building the GraphQL metamodel
>
> {code:java}
> public class MyAppViewFilter implements ... {
> public Optional<List<Class<?>>> include(...) {
> switch viewerType {
> case WICKET:
> return Optional.empty;
> case REST:
> return Optional.of(Arrays.asList(....));
> case GRAPHQL:
> return Optional.of(Arrays.asList(....));
> }
> }
> public Optional<List<Class>>> exclude(...) {
> switch viewerType {
> case WICKET:
> return include(REST);
> case REST:
> return Optional.empty();
> case GRAPHQL:
> return Optional.empty();
> }
> }
> } {code}
>
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