Indexer gets stuck on null return value

[jamoore]

Through some sequence of events (major bug?) there was no delete event log for a rendering def that was not present in my db:

42d1=# select * from eventlog where entityid = 901 and entitytype like '%Def';
   id   | action | permissions | entityid |           entitytype           | external_id | event 
--------+--------+-------------+----------+--------------------------------+-------------+-------
 208955 | INSERT |         -35 |      901 | ome.model.display.QuantumDef   |             | 20160
 208956 | INSERT |         -35 |      901 | ome.model.display.RenderingDef |             | 20160
 208960 | DELETE |         -35 |      901 | ome.model.display.RenderingDef |             | 20163
(3 rows)

42d1=# select * from RenderingDef where id = 901;
 id | compression | defaultt | defaultz | permissions | name | version | creation_id | external_id | group_id | owner_id | update_id | model | pixels | quantization 
----+-------------+----------+----------+-------------+------+---------+-------------+-------------+----------+----------+-----------+-------+--------+--------------
(0 rows)

42d1=# 

The indexer became completely stuck in this situation. Plan: print an error and purge (since the object does not exist)

[jmoore]

(In [6632]) fix #2191 - purge objects if null is returned by get()

[Carlos Neves <carlos@…>]

(In [aaddb4772d41f6c17db7055c5a9ca5df807f3665/ome.git] on branch dev_4_1_custom) fix #2191 - purge objects if null is returned by get()

git-svn-id: ​file:///home/svn/omero/trunk@6632 05709c45-44f0-0310-885b-81a1db45b4a6