Modify XML node but keep the XML file format intact

Question

How may I modify a XML file without any change like attributes ordering, tag expansion and encoding? (My preference is DOM API)

Answer 1

This is not possible with DOM, since DOM does not know the attributes' order.

You could use a low-level API such as StAX, javax.xml.stream, but StAX is not exactly comfortable to use.

Answer 2

You could try VTD-XML.

Since this library builds an index while keeping the file content as-is, its manipulation API will allow to "patch" your file while keeping the rest intact.

Using the VTD-XML API, you will be able to navigate your XML like a DOM tree (even using XPath) and do some modifications (insert elements, insert attributes, etc.)