TimeZone in SmartGwt

Question

I want to provide TimeZone settings in application, So, I need to get the Time Zones from the browser using smart Gwt. Please tell me the methods for getting time zones. Actually I have written java coding in smart gwt application as follows,

String timezones[]=java.util.TimeZone.getAvailableIDs();

for(int i=0;i<(timezones.length)-1;i++)
{

System.out.println(timezones[i]);

}

but it is not worked out and it is throwing an Exception as follows:

1. [ERROR] [timezoneproject] Line 32: No source code is available for type java.util.TimeZone; did you forget to inherit a required module

2. [ERROR] [timezoneproject] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly

How can I solve this?

Answer 1

GWT do support TimeZone.

Refer the com.google.gwt.i18n.client.TimeZoneConstants interface for list for TimeZones

can be found here

Also Find the Test program here

TO Create Timezone in GWT

final TimeZoneConstants timeZoneConstants = GWT.create(TimeZoneConstants.class);

TimeZone usPacific = TimeZone.createTimeZone(
        TimeZoneInfo.buildTimeZoneData(timeZoneConstants.americaLosAngeles()));

Answer 2

As Jean-Michel Garcia said, you cannot run the TimeZone class methods on the client side of your GWT application.

Instead, you should call String timezones[]=java.util.TimeZone.getAvailableIDs(); on the server-side of GWT and return the string array to the client and then do whatever you want with it

Answer 3

TimeZone is not part of the GWT emulated JRE. Therefore, you can't use it.

Please see this link : https://developers.google.com/web-toolkit/doc/latest/RefJreEmulation#Package_java_util