Allow JSON viewer to work with object stores other than the in-memory
objectstore.
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Key: ISIS-194
URL: https://issues.apache.org/jira/browse/ISIS-194
Project: Isis
Issue Type: Improvement
Components: Core: Runtime, Runtimes: Dflt: Objectstores: SQL, Viewer:
JSON
Affects Versions: 0.2.0-incubating
Reporter: Dan Haywood
In attempting to get the json viewer to run with the SQL object store,
discovered that it makes the wrong call to the AdapterManager and so fails to
load objects via its OID.
Exploring further, realized that the SqlOid impl *does* include the relevant
information to call the right API of AdapterManager / PersistenceSession,
namely that the className (=> objectSpec) is also included.
This change is therefore to introduce a new subtype of Oid, namely
OidWithSpecification, that is a self-contained Oid, and have the json viewer
depend only on object stores that support OidWithSpecification. (Note: it
isn't practicable to do what the html and scimpi viewers do, which is to cache
the spec per Oid in session state, since the idea is that the json viewer is
entirely stateless).
Also retrofit SqlOid to implement this new interface.
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