[jdom-interest] getChildren() returns an empty list.. (please help)
Malachi de AElfweald
malachi at tremerechantry.com
Tue Oct 22 10:13:27 PDT 2002
But didn't Massimo say they could List.iterate()?
You couldn't iterate through an empty list.
10/22/2002 6:29:37 AM, "John L. Webber - Jentro AG" <John.Webber at jentro.com> wrote:
>
>
>Mirabito, Massimo wrote:
>> You will have to forgive me but I am extremely new to JDOM.
>
>Hope you enjoy JDOM!
>
>> Following is a summary of my problem
>>
>> 1) XML document
>> <?xml version="1.0" encoding="UTF-8"?>
>> <security xmlns="s2">
>> <application>
>> <application-id>100</application-id>
>> <application-name>Application 1</application-name>
>> <application-description>Application 1
>> Description</application-description>
>> <application-roles>
>> <role id="1" name="Role 1" description="Role 1 Desc" />
>> <role id="2" name="Role 2" description="Role 2 Desc" />
>> </application-roles>
>> </application>
>> <user-roles>
>> <role id="1" name="Role 1" description="Role 1 Desc">
>> <access id="1" name="can">111111</access>
>> </role>
>> <role id="2" name="Role 2" description="Role 2 Desc">
>> <access id="2" name="irb_id">4444444</access>
>> </role>
>> </user-roles>
>> </security>
>>
>> 3) I can get the root element I check and see if it has children and it
>> returns true.... but when I invoke getChildren() the List size is 0
>>
>> root = doc.getRootElement();
>> System.out.println("has children " + root.hasChildren());
>> List appRoles = root.getChildren("application-roles ");
>> System.out.println("Size " + appRoles.size());
>
>Look at the javadocs for Element.getChildren(String) carefully: "This
>returns a List of all the child elements nested directly (one level
>deep) within this element with the given local name and belonging to no
>namespace, returned as Element objects."
>
>That is why root.hasChildren() returns true, but
>root.getChildren("application-roles") returns an empty List: the
><application-roles> element is not nested directly under the root element.
>
>In general, JDOM methods that return lists return an empty list on
>failure, not null.
>
>Greetings,
>
>John
>
>
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> John L. Webber, Software Development
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