convert Calendar to XMLGregorianCalendar and vice-versa

Steps (method) to convert Calender to XMLGregorianCalendar:

There may be several ways to do the conversion as many methods are available in Calendar and other classes. Here is one of it:

- This may be required while working with jax-ws or jaxb.

- jax-ws uses jaxb internally.

public static Calendar fromXMLGregorianCalendar(XMLGregorianCalendar xc)

throws DatatypeConfigurationException {

Calendar c = Calendar.getInstance();

c.setTimeInMillis(xc.toGregorianCalendar().getTimeInMillis());

return c;

}

public static XMLGregorianCalendar toXMLGregorianCalendar(Calendar c)

throws DatatypeConfigurationException {

GregorianCalendar gc = new GregorianCalendar();

gc.setTimeInMillis(c.getTimeInMillis());

XMLGregorianCalendar xc = DatatypeFactory.newInstance().newXMLGregorianCalendar(gc);

return xc;

}

Notes:

XMLGregorianCalendar can be instantiated with:

XMLGregorianCalendar xc = DatatypeFactory.newInstance().newXMLGregorianCalendar();

xc would be initialized with date: Thu Jan 01 00:00:00 GMT+05:30 1970

Note: If you directly try to print xc with: sysout(xc) then u will get Exception.

So you can use:

System.out.println(xc.toGregorianCalendar().getTime());

Output: Thu Jan 01 00:00:00 GMT+05:30 1970

I hope this would be useful.

Regards,

Ravindra Pandya