Hi all,
I just noted that both the methods JXPathContext#iterate(String) and
JXPathContext#iteratePointers(String) can return the same object multiple
times if the path (or pointer) to it is different.
In my object graph I have some two-way associations which can cause this
behaviour and that's of course not desirable. In this scenario
iteratePointers("//b") can end up returning something like:
/a[1]/b[1]
/a[1]/b[1]/a/b[1]
/a[1]/b[1]/a/[b[1]/a/b[1]
...
The two-way associations I have are actually containments comparable to
XML's parent-child relationship between elements. How can I extend JXPath
to specify what properties in my model are parent relationships?
But regardless of these parent-child relationships I think it's questionable
whether the same object should ever be returned twice by these iterators.
Because it means that the iteration can turn out to be never-ending. Or
will it even always be indefinite? But I've probably missed an important
aspect here :-)
--
knut
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