Set parentheses in Querydsl

Question

How is it possible to set parentheses in Querydsl? If I have a complex boolean expression, for example

b1 and b2 and ((b3 or b4) and b5) and ((b6 and b7) or b8)

it would be nice to get a select statement nesting the boolean expression like in this example. The best result with Querydsl I got was

b1 and b2 and (b3 or b4 and b5) and (b5 and b6 or b7)

My code looked like this:

BooleanExpression be = obj.v1.eq(key)
    .and(obj.v2.eq(..))
    .and(obj.v3.goe(..).or(obj.v3.loe(..)).and(obj.v4.eq(..))
    .and(obj.v5.goe(..).and(obj.v5.loe(..)).or(obj.v5.goe(..))

Answer 1

The result that QueryDSL generates is logically equivalent.

However, if you really want the parentheses there, QueryDSL has the WRAPPED operator that wraps an expression within parentheses.

Use:

Expressions.predicate(Ops.WRAPPED, firstExpression.and(secondExpression))