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to DOM...

1 reply on 1 page. Most recent reply: Mar 23, 2005 5:20 AM by Amol Brid

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park jung gyu

Posts: 4
Nickname: dalantpark
Registered: Mar, 2005

to DOM...

Posted: Mar 23, 2005 4:57 AM

Why parent1 and parent2 must add same Element in sequence when parent1 remove it after inserting to parent1?

ex)
Document doc = new org.apache.xerces.dom.DocumentImpl();

Element ele = doc.createElement("element");

parent1.appendNode(ele);
parent2.appendNode(ele);

next, it removes ele from parent1.

why mustn't write...

parent1.appendNode(ele);

next, it removes ele from parent1.

parent2.appendNode(ele);

after removing above, Is ele object disposed.

Amol Brid

Posts: 43
Nickname: amolbrid
Registered: Feb, 2004

Re: to DOM...

Posted: Mar 23, 2005 5:20 AM

Hi,
I have not fully understood your question. But if you mean that why ele is removed from parent1 and is ele valid for GC the read this:

you cannot add a element as a child of two different parents. If you try to do this then the child element is removed from the first parent.

In your case the element refered by ele will be removed from parent1 and added to parent2, but the element refered by ele will not be garbage collected since parent2 refers to it.

Revert back if you don't understand it.

Regards,
Amol Brid.

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