A Cron Object

Before we see how to define either a function or a method job we need to introduce a very easy concept of the framework.

info

A Cron Object is simply the name given to a struct type that:

• is annotated with the cron_obj macro
• has an implementation block annotated with the cron_impl macro containing only jobs inside of it

For Example:

#[marco_use] extern crate cronframe;

use cronframe::{CronFrame, CronFrameExpr};

#[cron_obj]
struct WeatherJob{
    city: String,
    schedule: CronFrameExpr,
}

#[cron_impl]
impl WeatherJob{
    // function and method jobs can be defined here
}

As we can see the definition of a cron object is very straightforward and it also makes perfectly clear where the jobs should be defined.

note

Cron Objects require their fields to implement the Clone trait.

Now we can get to defining function and methods jobs.