CODEWITHSUNDEEP
xmljaxb
Chris A
Chris A

Reputation: 1100

Jaxb - I want 'xs:nil' but don't want 'xmlns:xsi'

MyClass.java

@XmlElement(nillable=true, required=true)
public String myNillableThing;

Actual output

...
<myNillableThing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
...

Desired output

...
<myNillableThing xs:nil="true"/>
<-- note xs, not xsi -->
...

I'll be honest, I don't know what either of those attributes mean, but I am trying to produce a file which replicates a very specific example and those are the tags shown on the example file.

Upvotes: 0

Views: 23

Answers (1)

bmargulies
bmargulies

Reputation: 100143

What you have is semantically identical to what you want, I believe.

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" defines the token xsi to be that URL. You have to define some prefix. Now, you might have a document in which you see xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" up higher in the structure, and then a reference to xs:nil down below. But someone has to define the prefix, there are no prefixed provided by default.

To an XML parser, all of this is just syntax around the pair:

http://www.w3.org/2001/XMLSchema-instance, nil

the prefixes have no semantic value. If you are parsing XML without a true parser, and just looking literally for 'xs:nil', you are potentially in for all kinds of problems.

Upvotes: 0

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