This week's book giveaway is in the Other Languages forum.
We're giving away four copies of Functional Reactive Programming and have Stephen Blackheath and Anthony Jones on-line!
See this thread for details.
Win a copy of Functional Reactive Programming this week in the Other Languages forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Persisting linked-list using Hibernate

 
Raghvendra Singh
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Check the object model attached. Parent has reference to firstSeqChild and then onward the seqChild object keeps the reference to next seqChild, hence creating a linked list.

Problem:
Hibernate saveOrUpdate fails with StackOverflow exception if the parent has approx 300 transient seqChildren (due to cascade save effect).
Is there anyway to bypass this problem? I am expecting this seqChildren list to be in thousands in actual implementation.

Another obvious thought I had was to convert the parent seqChild relationship to a "one to many" and use sorted set based on a new index column. but that does not server the purpose becuase an object can be inserted in between the chain (linked list). "it is mandatory for every seqChild to know its preceeding and follwoing seqChild". Design changes, that does not contradict this rule are also welcome.

Relevant code ..

Parent.java


SeqChild.java

Parent.hbm.xml

SeqChild.hbm.xml

Please ask for any additional information required .. Thanks for your help ..
Model.jpg
[Thumbnail for Model.jpg]
Model
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic