Updating xml using dom in java

19-Sep-2019 01:50 by 4 Comments

Updating xml using dom in java - enterprise library modified date and time not updating

In the following sample we want to get the first book’s author’s id. Let’s see the code first: def response = new Xml Slurper().parse Text(books) def book = response.value.books.book[0] (1) def book Author Id1 = [email protected] (2) def book Author Id2 = book['@id'] (3) assert book Author Id1 == '1' (4) assert book Author Id1Integer() == 1 (5) assert book Author Id1 == book Author Id2def response = new Xml Slurper().parse Text(books) // .'*' could be replaced by .children() def catcher In The Rye = response.value.books.'*'assert catcher In The Rye.title.text() == 'Catcher in the Rye' What if we would like to look for a given value without having to know exactly where it is.Let’s say that the only thing we know is the id of the author "Lewis Carroll" . Using def response = new Xml Slurper().parse Text(books) def node Name = def with Id2or3 = assert ['book', 'author', 'book', 'author'] == response.value.books.depth First()All(with Id2or3).collect(node Name) assert ['book', 'book', 'author', 'author'] == response.value.books.breadth First()All(with Id2or3).collect(node Name)def writer = new String Writer() def xml = new Markup Builder(writer) (1) xml.records() def records = new Xml Slurper().parse Text(String()) (3) assert first()text() == 'HSV Maloo' assert last()text() == 'Royale'def xml Writer = new String Writer() def xml Markup = new Markup Builder(xml Writer) xml Markup.movie(id: 2) def movie = new Xml Slurper().parse Text(xml String()) assert [email protected] == 2 assert text() == 'the godfather'def xml Writer = new String Writer() def xml Markup = new Markup Builder(xml Writer) xml Markup .'x:movies'('xmlns:x':' def movies = new Xml Slurper() (2) .parse Text(xml String()) .declare Namespace(x:' assert movies.'x:movie'.last()[email protected] == 2 assert movies.'x:movie'.last().text() == 'ronin'def xml Writer = new String Writer() def xml Markup = new Markup Builder(xml Writer) xml Markup .'x:movies'('xmlns:x':' def movies = new Xml Slurper() .parse Text(xml String()) .declare Namespace(x:' assert movies.'x:movie'.size() == 4 assert movies.'x:movie'*.text().every build Movie List = xml Markup.'x:movies'('xmlns:x':' def movies = new Xml Slurper() .parse Text(xml String()) .declare Namespace(x:' assert movies.'x:movie'.size() == 4 assert movies.'x:movie'*.text().every """ def builder = parsers.

updating xml using dom in java-81

The key to the conversion process is to modify an existing application to deliver SAX events as it reads the data.In this sense, it has similar aims and scope as XPath does for XML.The two main places where you use GPath expressions is when dealing with nested POJOs or when dealing with XML Next step is to get the some values from a given node’s attribute.If the processing you are doing is state-independent (meaning that it does not depend on the elements that have come before), then SAX works fine.On the other hand, for state-dependent processing, where the program needs to do one thing with the data under element A but something different with the data under element B, then a pull parser such as the Streaming API for XML (St AX) would be a better choice.In first, the parser traverses the input XML file and creates DOM objects corresponding to the nodes in XML file.

These DOM objects are linked together in a tree like structure.

In last post, I identified the most noticeable differences between a DOM parser and SAX parser.

In this tutorial, I am discussing concepts and examples related to read xml file with DOM parser in java.

SAX requires much less memory than DOM, because SAX does not construct an internal representation (tree structure) of the XML data, as a DOM does.

Instead, SAX simply sends data to the application as it is read; your application can then do whatever it wants to do with the data it sees.

SAX is fast and efficient, but its event model makes it most useful for such state-independent filtering.