Hello,
I experience the following - from my point of view unexplainable -
behaviour when using the GWT NumberFormat
(com.google.gwt.i18n.client.NumberFormat). I am using GWT 2.0.3,
Eclipse Ganymed and IE8/FF3.6.
Within my client package I have a static helper class which contains
the following method:
<code>
public class Utils {
...
public static final NumberFormat DOUBLE2_FORMAT =
NumberFormat.getFormat("##########.00");
...
public String formatDouble2(double d) {
return DOUBLE2_FORMAT.format(d);
}
...
}
</code>
Using the code above I get a javascript error when using the
formatDouble2 method. Compiling the GWT code in a "detailed" way and
the javascript error message is something like
com...i18n.client.positivePrefix is null or not an object. The GUI
gets stuck and the application is no longer usable.
So how did I solve it?
During debug instrumentalization I found two ways. Unfortunately I can
not explain either of them - so I was hoping someone can explain me
why it works! ;)
Adding a Window.alert(...) into the formatDouble2 and everything works
fine. Why!?
<code>
public class Utils {
...
public static final NumberFormat DOUBLE2_FORMAT =
NumberFormat.getFormat("##########.00");
...
public String formatDouble2(double d) {
Window.alert("Utils: inside formatDouble2 d=" +d);
return DOUBLE2_FORMAT.format(d);
}
...
}
</code>
The solution I am currently using is to only use pattern itself as a
static member and create the NumerFormat within the method. This works
too.
<code>
public class Utils {
...
public static final String DOUBLE2_FORMAT_PATTERN = "##########.00";
...
public String formatDouble2(double d) {
return NumberFormat.getFormat(DOUBLE2_FORMAT_PATTERN).format(d);
}
...
}
</code>
BTW, changing the public static to private static did not work either.
Thanks in Advance for your help!
Stefan
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