Ahoj,
toto udelat nejde, viz manual Hibernatu kapitola 6.3.2.
(http://www.hibernate.org/hib_docs/reference/en/html/collections.html)
You may specify a bidirectional many-to-many association simply by
mapping two many-to-many associations to the same database table and
declaring one end as /inverse/ (which one is your choice, but it can not
be an indexed collection).
Neni proste jak ulozit a manageovat oba dva indexy.
Lukas
Petr Kolesa napsal(a):
Ahoj,
potykam se s problemem jak v JPA nad Hibernate namapovat nasledujici
tridu:
class MyNode {
List<MyNode> parents;
List<MyNode> children;
//...
}
Kdyby mel kazdy uzel jen jednoho predka, slo by o mapovani stromu, a
to je v pohode. Jak ale namapovat takovyhle rosti? Mam pritom
zaruceno, ze v grafu neexistuji orientovane cykly (zadny uzel nemuze
byt sam sobe predkem).
diky
kolisko
