hibernate - Criteria with collections -

i having rough time dealing hibernate criteria , collections.

i have following relations:

• a has many elements of b
• a has 1 element of c
• c has many elements of d
• d has 1 element of e

so basically

e<----1----d<--------c<----1----a--------->b

i trying fetch elements of c elements verify conditions on c's attributes, plus have @ least 1 element d related specific e.

so criteria far:

session.createcriteria(a.class)                 .createcriteria("cs")                 .add(restrictions.or(restrictions.eq("attributea", 1), restrictions.eq("attributeb", 2)))                 .createcriteria("ds")                 .createcriteria("e")                 .add(restrictions.eq("id", 123); 

this works okay, sql getting hibernate result select attributes of c, d , e, don't need (only need filter them). how can restrict these , use relations filtering?

also, want elements b fetched, otherwise getting collection have initialize individually, results in lot more queries. how can build criteria includes those?