recursion in an J2EE application 2003-07-25 - By Rafal Kedziorski
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hi,
in our business logic we are using sometimec recursion i.e. we have a
category module, which represents category tree like:
Root/
Countries/
Italy
Germany
...
Pictures/
Cities/
.../
The sturcture of the categories can be created by the user. we have a
caterory stucture and the translations. to each category user can assign
some media data (video, picture, audio). while we are removing whole
category tree stucture or some nodes, than we have implement
private void deleteCategoryRecursive(Long caller_user_id, Integer
mandant_id, Category_TreeLocal categoryTreeLocal, boolean delReference)
throws CategoryException {
if (has_childreen) {
Iterator childreenCatTreeIterator = ...;
while (childreenCatTreeIterator.hasNext()) {
deleteCategoryRecursive(caller_user_id, mandant_id,
(Category_TreeLocal) childreenCatTreeIterator.next(), delReference);
}
}
removeCategory(categoryTreeLocal);
}
is the recursive way, a good way in an J2EE application?
The other was to reimplement this, is to get at first all
Category_TreeLocal's in right order and than call for each removeCategory(...).
Best Regards,
Rafal
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