It so happens that I have this lying around on my disk, which investigates
several variants of doing date/time. The binding can be done with a separate
file if you don't want to put it in your XML schema. If you want to have
date+TZ, you'll have to modify the adapter, but that's easy.
<xs:schema xmlns:xs="
http://www.w3.org/2001/XMLSchema"
xmlns:jaxb="
http://java.sun.com/xml/ns/jaxb"
jaxb:version="2.1" version="2.0">
<xs:element name="doc" type="DocType"/>
<xs:simpleType name='DateWithoutTimezoneInfo'>
<xs:restriction base='xs:date'/>
</xs:simpleType>
<xs:annotation>
<xs:appinfo>
<jaxb:globalBindings>
<jaxb:javaType name="java.util.Calendar"
xmlType="MyDate"
parseMethod="generated.MyConverter.parseDateTime"
printMethod="generated.MyConverter.printDateTime" />
</jaxb:globalBindings>
</xs:appinfo>
</xs:annotation>
<xs:simpleType name="MyDate">
<xs:restriction base="xs:string" />
</xs:simpleType>
<xs:complexType name="DocType">
<xs:sequence>
<xs:element name="dntz1" type="DateWithoutTimezoneInfo"/>
<xs:element name="aday1" type="xs:date"/>
<xs:element name="dntz2" type="DateWithoutTimezoneInfo"/>
<xs:element name="aday2" type="xs:date"/>
<xs:element name="aday3" type="MyDate"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
And the code for MyGenerator.java (use a better package - NOT generated, and
change this in the XML schema, too!):
package generated;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
import java.util.GregorianCalendar;
import java.util.Calendar;
public class MyConverter {
private static DatatypeFactory dtf;
static {
try {
dtf = DatatypeFactory.newInstance();
} catch( Exception e ){
throw new IllegalStateException( "bad" );
}
}
public static Calendar parseDateTime( String s ){
XMLGregorianCalendar xgc = dtf.newXMLGregorianCalendar( s );
return xgc.toGregorianCalendar();
}
public static String printDateTime( Calendar cal ){
XMLGregorianCalendar xgc =
dtf.newXMLGregorianCalendar( (GregorianCalendar)cal );
return xgc.toString();
}
}
-W
On Mon, Mar 15, 2010 at 6:52 PM, Charles Overbeck <
charles_overbeck_at_yahoo.com> wrote:
> Hello,
>
> I'm trying to customize the mapping of dates/XMLGregorianCalendar during
> marshalling, simliar to what is described in this article:
>
> http://blogs.sun.com/CoreJavaTechTips/entry/exchanging_data_with_xml_and
>
> Look for the text "Although JAXB can handle marshalling java.util.Date to
> XML"... for the relevant part of the article.
>
> The reason I can't follow the steps in that article exactly is that I am
> generating the JAXB beans from XML/.XSD, rather than having the XML
> generated from Java Beans. So I can't add annotations to the Java Beans as
> the article describes.
>
> I thought I could explicitly set an XML adapter to handle this on the
> marshaller, but I can't get it working. I hope and expect I am missing
> something obvious. Here is what I am basically doing:
>
> - I am using JAXB 2.1.10 (with Jersey if that matters, although I don't
> think it should).
>
> - My .XSD contains a line like this:
>
> <xsd:element name="activeSince" type="xsd:date" maxOccurs="1"
> minOccurs="0"></xsd:element>
>
> The generated bean then looks like this:
>
> @XmlSchemaType(name = "date")
> protected XMLGregorianCalendar activeSince;
>
> I create a Marshaller via the JAXBContext and try this (I know the
> marshaller is being used because I get errors if there are schema errors).
>
> marshaller.setSchema(mySchema);
> marshaller.setAdapter(new DateAdapter());
>
> And my DateAdapter looks like this:
>
> private static class DateAdapter extends XmlAdapter<String,
> XMLGregorianCalendar> {
> @Override
> public String marshal(XMLGregorianCalendar v) throws Exception {
> return "hello"; // This will not be the real code obviously --
> just a test to see my adapter is being invoked
> }
> @Override
> public XMLGregorianCalendar unmarshal(String v) throws Exception {
> return null; // I don't care about unmarshalling for this test
> }
> }
>
> What happens is that the default date marshalling occurs.
>
> Any help is appreciated.
>
> Thanks,
>
> Charles
>
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