Ok. I need some help to hack the library, where do I start. I want to make it
so that it checks the available setters against the objectType of the given
argument, instead of assuming an argument of a specific type. Example:
BeanUtils.setProperty(myBeanInst, myProperty, instanceOfClassTypeX);
Algo: is there a setMyProperty in myBeanInst, accepting an argument of type
ClassTypeX?
YES: call it
NO: throw exception
Would appreciate it if someone could point me to the right direction for
achieving the above.
Thanks
Dimitris
On 2010-06-06, at 8:24 PM, James Carman wrote:
The property consists of the getter/setter, not some field. So, the
pair of matching setter/getter are what makes up the property. The
overloaded method isn't a setter for the property.
On Sun, Jun 6, 2010 at 12:55 PM, Dimitris Tsitses 4.biz@gmail.com wrote:
myProperty is of one type only. The overloaded setters are there only for
convenience, i.e., to convert to the type of myProperty before setting it. I
don't think the JavaBeans spec disallows that, if it did, that would mean
that the JavaBeans spec undermines Java's spec! (i.e., do you like method
overloading? Well, you can't use it here!). That would of course severally
restrict JavaBeans usefulness.
On 2010-06-06, at 5:50 AM, James Carman wrote:
That violates the JavaBeans specification. myProperty is supposed
to be of one type only.
On Sat, Jun 5, 2010 at 10:02 PM, Dimitris Tsitses 4.biz@gmail.com
wrote:
Hi all, I'm trying to do something really simple but I can't seem to
figure it out, I hope someone can help.
I have a simple bean:
public class MyBean {
private ClassTypeA myProperty;
public void setMyProperty(ClassTypeA anObj) {
this.myProperty = anObj;
}
public void setMyProperty(ClassTypeB anObj) {
this.myProperty = Converter.convertBtoA(anObj);
}
}
If I invoke the setter by passing an instance of ClassTypeA, it works
without a problem:
BeanUtils.setProperty(myBeanInst, myProperty, instanceOfClassTypeA);
However if I invoke the setter by passing an instance of ClassTypeB, I get
an exception and the setter is never actually called:
BeanUtils.setProperty(myBeanInst, myProperty, instanceOfClassTypeB);
java.lang.IllegalArgumentException: Cannot invoke.. la la la - argument
type mismatch -
I can't believe it is not possible to do that, I'm sure I'm just missing
something. Any help will be greatly appreciated.
Many thanks
Dimitris
-
To unsubscribe, e-mail: user-unsubscr...@commons.apache.org
For additional commands, e-mail: user-h...@commons.apache.org
-
To unsubscribe, e-mail: user-unsubscr...@commons.apache.org
For additional commands, e-mail: user-h...@commons.apache.org
-
To unsubscribe, e-mail: user-unsubscr...@commons.apache.org
For additional commands, e-mail: user-h...@commons.apache.org
-
To unsubscribe, e-mail: user-unsubscr...@commons.apache.org
For additional commands, e-mail: user-h...@commons.apache.org
