I have a predicate( javax.persistence.criteria.Predicate ) which filters raw data as follows:
public Predicate byAccountsId(Collection<Long> accountsId) {
ParameterExpression<?> param = createParam(AOraArrayUserType.class, new AOraArrayUserType(accountsId));
return criteriaBuilder().or(
criteriaBuilder()
.equal(criteriaBuilder().function("in_ex", Long.class, actSourceJoin().get(Account_.id),
param), 1),
criteriaBuilder().equal(
criteriaBuilder().function("in_ex", Long.class, actDestinationJoin().get(Account_.id),
param), 1));
}
This predicate builds the next part of the query:
..
where
..
act.source_id in (accountsId.values())
or act.destination_id in (accountsId.values() - array ids)
..
It works fine but there may be too much raw data.I want to use "Oracle functional index", which removes unnecessary data from the query results. I tried to rewrite my predicate as follows:
public Predicate byAccountsId(Collection<Long> accountsId) {
ParameterExpression<?> param = createParam(AOraArrayUserType.class, new AOraArrayUserType(accountsId));
return criteriaBuilder().or(
criteriaBuilder().literal(
Restrictions.sqlRestriction("case when state != 'ARCHIVE' then source_id else null end"))
.in(param));
}
Resurlt query builds fine but returns no result. But when I copy result query to sql developer and run the query it returns the expected result.
Part of the query which is build by new predicate:
..
where
..
(case when act.state != 'ARCHIVE' then act.source_id else null end) in (accountsId.values() - array ids)
..
Does anybody know why I don't get the correct result when I'm using the new predicate? And can I use hibernate.criterion.Restrictions
with javax.persistence.criteria.Predicate
?
您可以在实体(AOraArrayUserType)中为表达式定义@Formula
并在条件中使用该字段
Restrictions.in("theFormulaField", param)
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