I have xml schema that allows mixed content (CDATA or any free text
between the start and end tag).
The generated JAXB classes do not provide a method to set this part of the
data.
<myElement myAttribute= "myAttributeValue">
some text here or<![CDATA[some free text here that can even
include <some> <text> similar to <xml>]]>
</myElement>
The generated classes by JAXB would provide a setMyAttribute
()/getMyAttribute() method and will provide a getContent() method.
The getContent() method provides a java.util.List , one of the elements of
the list will be an instance of java.lang.String. The string contains the
text:
"some text here orsome free text here that can even include <some>
<text> similar to <xml>"
In other words, all the Text and CDATASection nodes from a DOM tree are
mapped to a single string.
Currently JAXB generates the interface:
public interface MyElement {
void setMyAttribute(String text);
String getMyAttribute()
java.util.List getContents()
}
But since all the mixed content is mapped to a single string , why not
provide soemthing like:
public interface MyElement {
void setMyAttribute(String text);
String getMyAttribute()
String getText();
void setText(String text);
java.util.List getContents()
}
The implementation would be something like:
public String getText() {
String res = null;
Iterator iter = getContent().iterator();
while( iter.hasNext() ) {
Object data = iter.next();
if( data instanceof String) {
res = (String) data;
}
}
return res;
}
public void setText(String text) {
Iterator iter = getContent().iterator();
while( iter.hasNext() ) {
Object data = iter.next();
if( data instanceof String) {
iter.remove();
}
}
getContent().add( text );
}
My schema has several elements that allows mixed content, and I find myself
repeating the code above in a new class for every element that allows mixed
content.
It would be useful to have the setText() / getText() methods generated by
JAXB.
But, if not possible, it would be enough if the generated interfaces that
have the getContent() method extend a marker interface....In that way, I
can may a single class with teh methods above and not repeat them for every
single element with mixed content.
-Jorge
Kohsuke Kawaguchi <Kohsuke.Kawaguchi_at_Sun.COM>@JAVA.SUN.COM> on 04/02/2003
05:22:06 PM
Please respond to JAXB-INTEREST_at_JAVA.SUN.COM
Sent by: Discussion list for the Java Architecture for XML Binding
<JAXB-INTEREST_at_JAVA.SUN.COM>
To: JAXB-INTEREST_at_JAVA.SUN.COM
cc:
Subject: Re: How do I get the CDATA data ?
> Since all text and CDATA nodes are being put together into a single
> element of the list returned by getContent() , Why not provide a setText
()
> / getText() method on those classed that handle mixed content ?
>
> Or at least, provide a marker interface MixedContent for those classes
with
> the getContent() method. This would help to implement a generic class to
> set, get the text on those elements.
I'm afraid I don't understand what you mean.
regards,
--
Kohsuke KAWAGUCHI 408-276-7063 (x17063)
Sun Microsystems kohsuke.kawaguchi_at_sun.com