How to pass instance variables into Quartz job?

Question

I wonder how to pass an instance variable externally in Quartz?

Below is pseudo code I would like to write. How can I pass externalInstance into this Job?

public class SimpleJob implements Job {         @Override         public void execute(JobExecutionContext context)                 throws JobExecutionException {              float avg = externalInstance.calculateAvg();         } } 

Answer 1

you can put your instance in the schedulerContext.When you are going to schedule the job ,just before that you can do below:

getScheduler().getContext().put("externalInstance", externalInstance); 

Your job class would be like below:

public class SimpleJob implements Job {     @Override     public void execute(JobExecutionContext context)             throws JobExecutionException {         SchedulerContext schedulerContext = null;         try {             schedulerContext = context.getScheduler().getContext();         } catch (SchedulerException e1) {             e1.printStackTrace();         }         ExternalInstance externalInstance =             (ExternalInstance) schedulerContext.get("externalInstance");          float avg = externalInstance.calculateAvg();     } } 

If you are using Spring ,you can actually using spring's support to inject the whole applicationContext like answered in the Link