How to change the value of global variable of a selected environment programmatically and keep the default value?

Question

I tried to change the value of global variable like that:

public static void updateGlobalVariableValue(final String globalName,final String globalValue,final IEnvironment environment) throws Exception {
    SecurityManagerFactory.getSecurityManager().executeAsSystem(new Callable<Void>() {
        @Override
        public Void call() throws Exception {
            IGlobalVariable variable = environment.findGlobalVariable(globalName);

            if (variable != null) {
                variable.setValue(globalValue);
            }

            return null;
        }
    });
}

If in the selected environment, we didn't set the value of that variable, after execute my function, the default value of the global variable is changed.

Is it a bug of API or I did the wrong way? Could you please show me the way to modify just the value of global variable in the selected environment and keep the default value?

Thank you very much, Phu Nguyen

Accepted Answer

If no value is configured for a environment for a global variable then the method IEnvironment#findGlobalVariable will return the default configuration of a global variable (e.g. default environment) as noted in the javadoc. If so and you set the value of it you change the default value.

Use method IApplication.findDefaultGlobalVariable(String environment) to get the default configuration (e.g. default environment) of a global variable. On the default configuration you can call findEnvironmentConfiguration(String environment) to get the configuration of the global variable for a specific environment. If it does not exists null is returned. Use method createEnvironmentConfiguration(...) to create a missing configuration for a global variable for a specific environment.

How to change the value of global variable of a selected environment programmatically and keep the default value?

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