need empty arry return in event handler

General
1

I need an empty array [] in event handler output
Backendless.ServerCode.Persistence.beforeFind(‘userCoupon’, function(req) {
var foo = [];
return foo;

});
But this return error
{
“code”: 20014,
“message”: “PrematureResult in your event handler has incompatible type ‘[Ljava.lang.Object;’, whereas return type is ‘java.util.Collection’.”
}
Please help me.

2

Looks like you’re trying to return a premature result from your before handler. Try returning an object {“short”: true} from the handler according to the docs and see what you’ll get in response on the client. Probably you’ll get an empty array as expected, but if not - please post what you receive instead.

3

I done this .
Backendless.ServerCode.Persistence.beforeFind(‘userCoupon’, function(req) {
return { short: true }
});
Got Same error
{
“code”: 20014,
“message”: “PrematureResult in your event handler has incompatible type ‘java.util.HashMap’, whereas return type is ‘java.util.Collection’.”
}

4

Hi Thomas

We’ve found the problem and our developer is working on it, we will notify you here about result asap

Regards, Vlad

5

Thank you for checking. I’ve created an internal task BKNDLSS-16338 to investigate this issue.

6

Hi Thomas,

Issue has been fixed, code from your description now returns an empty array as expected.

Regards,
Anton