Hi,

How can objects be queried by only making comparisions among its attributes without using an arbitrary value?
For example, for an object type 'X' with attributes 'a', 'b', 'c', 'd', how can we query for all 'X' type objects whichever satisfy the conditions like X.a == X.b, X.c > X.d, X.d < X.a, etc. but not like X.a == 10,...

Thanks.

That's probably better done using a relational query, using HQL (and not using Hibernate Search).

If you need to use Hibernate Search for this - for example because you need to combine this condition with other full-text criterias - then you can do it but you'll need to write a custom Collector implementation.

http://lucene.apache.org/core/3_6_2/api/core/org/apache/lucene/search/Collector.html