Igor, Thanks! How do you think, is there a way to validate this on the earlier stages and throw more descriptive exception? Currently this looks like a usability issue.
-Val On Mon, Aug 29, 2016 at 8:05 PM, Igor Rudyak <irud...@gmail.com> wrote: > Hi Valentin, > > You are right - the reason is in "id" field. According to the persistence > descriptor, cache key will be stored in "id" field, but at the same time > User POJO class also has such field. There are several options to fix this: > > 1) Specify another column mapping for Ignite cache key. For example: > > <keyPersistence class="java.util.UUID" strategy="PRIMITIVE" column="userId" /> > > > 2) Specify non default column mapping for "id" field in User class. Here > are the options to do this: > > a) Mark "id" field by *@QuerySqlField* annotation and specify name > which is differ than "id". For example: > > * @QuerySqlField(name="userId")* > > b) Manually specify columns mapping for User class in xml persistence > descriptor and make sure that "id" field is mapped to something differ that > "id". For example: > > <valuePersistence class="*****.User" strategy="POJO"> > <field name="id" column="userId"/> > <field name="name" /> > </valuePersistence> > > > 3) Manually specify columns mapping for User class in xml persistence > descriptor and omit "id" field - such a way "id" field from User class > simply will not be persisted into Cassandra table. Which makes sense if you > already have absolutely the same value for Ignite cache key - you don't > need to save the same value twice into two different columns. Example: > > <valuePersistence class="*****.User" strategy="POJO"> > <field name="name" /> > </valuePersistence> > > > > Regards, > Igor Rudyak > > > > On Mon, Aug 29, 2016 at 7:15 PM, Valentin Kulichenko < > valentin.kuliche...@gmail.com> wrote: > >> Hi Igor, >> >> Will you have a chance to take another look at user's issue [1]? As far >> as I understand, this happens because the key column name is "id" and there >> is "id" field in the value class. Is this a valid configuration? >> >> [1] http://apache-ignite-users.70518.x6.nabble.com/Ignite- >> with-Cassandra-td7242.html >> >> -Val >> > >
