How to ask BeanUtils to ignore null values
- by Calm Storm
Using Commons beanUtils I would like to know how to ask any converter say the Dateconverter to ignore null values and use null as default. As an example consider a public class,
public class X {
private Date date1;
private String string1;
//add public getters and setters
}
and my convertertest as,
public class Apache {
@Test
public void testSimple() throws Exception {
X x1 = new X(), x2 = new X();
x1.setString1("X");
x1.setDate1(null);
org.apache.commons.beanutils.BeanUtils.copyProperties(x2, x1);
//throws ConversionException
System.out.println(x2.getString1());
System.out.println(x2.getDate1());
}
}
The above throws a NPE since the date happens to be null. This looks a very primitive scenario to me which should be handled by default (as in, I would expect x2 to have null value for date1). The doco tells me that I can ask the converter to do this. Can someone point me as to the best way for doing this ?
I dont want to get hold of the Converter and isUseDefault() to be true because then I have to do it for all Date, Enum and many other converters !
