I am new to GWT, and facing one problem.
How we have .properties file for initial configuration at startup. I want to create one in GWT App.
Also, GWT has client and server package.
I want to setup the configuration at client package because all configuration belongs to client side.
My actual need,
I have one textArea which takes up only fixed number of characters and length is defined in my properties file like below.
So I have to read a properties file for validation.
my.properties
smsConstraintEnabled=true
smsConstraintCharLimit=160
I found few link but all are talking about properties file regarding Locale, I don't have any need on Locale side but need simple key-value configuration.
I want this file to be loaded at startup or at Entry point itself and then I can use it at any client package classes for my validation.
Thanks in advance.
Use a Constants interface. It's built with I18N in mind but will work just as well in this case, where you provide the constant values for a single locale, the default one (therefore used for every locale you'll compile your app with).
That however means the file is read at compile-time, not runtime (i.e. you'll have to recompile your app each time you change the properties file).
If you want something more dynamic, then read the file on the server-side and pass the information to the client-side. Easiest, and with minimal overhead, is to use a dynamic host page. To read the values in your client code, then either use a Dictionary (and Integer.parseInt et al.) or use JSNI (possibly with an overlay type).