[jdom-interest] General questions
jgangemi at architag.com
Fri Aug 4 13:39:01 PDT 2000
Now that I understand that the functions are named based on the structure
of the tree and not the structure of the document, I have some questions.
When a document is read into JDOM that does not contain newlines, are the
elements with no text siblings in the tree considered to have only element
<root><elem1><elem2>This is text</elem2></elem1></root>
Elem1 contains elem2 only.
If you introduce newlines as follows:
Does elem1 now have mixed content because there is a text node that
contains a newline after the start-tag for elem1 (and after the end-tag for
If I issue a getMixedContent(elem1) request, what do I get back in the list
from each example? Can I issue a getMixedContent() request on an element
that does not have mixed content? Will it still return all the elements in
I assume that if I add comments and PIs in elements with element content
both with and without newlines that things get even more interesting.
Let's say that I am writing an application for a variety of XML instances
and I want to process the elements consistently regardless of the ignorable
newlines (and any other extraneous whitespace). I do, however, want to be
aware of the newlines for error reporting or indexing purposes (whatever).
The underlying question is how do I do this? Do I always treat all elements
as mixed content on the chance that newlines might intervene and sort it
out in my own code? Or do I need to check for mixed content first then
issue either a getMixedContent() or getElement() request accordingly?
The questions posed above assume that extraneous whitespace, such as
newlines, are stored in a text node. Is this correct? Is there any
distinction made between a text node that only contains whitespace and one
that does not?
Joseph V. Gangemi Senior Consultant
Architag International (856) 784-9522
Leveraging your information assets. (856) 784-4350 (fax)
jgangemi at architag.com http://architag.com
8884129662 at alphapage.airtouch.com (888) 412-9662 (pager)
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