Tag: quartz-scheduler

Couldn’t retrieve job because a required class was not found, even though previous triggers fired successfully

I have a CRON trigger defined with Quartz, which successfully fires several times and ends up in error state after some cycles, with the following message (class names and package names have been redacted): Once this error happens, the trigger updates itself to ERROR state and won’t fire anymore. The st…

How to add Quartz JobListener

java quartz-scheduler scheduling spring spring-boot

I am writing a java/spring library to include in other projects that are using quartz. I need it to log something before each task is executed. I have a simple JobListener that looks like this: I know we can do something like this to add joblisteners: But how can I get the scheduler to add so I can add the

What does each table for quartz scheduler signify?

java quartz-scheduler spring-boot

There are few tables that quartz scheduler uses for scheduling jobs and to identify which job is running currently. It uses the following tables : So what is the purpose of each of these tables and what does it siginifies? Thanks in advance. Answer I had the chance to work on quartz recently. I’m myself…

How to change Spring’s @Scheduled fixedDelay at runtime?

java quartz-scheduler scheduled-tasks spring

I have a requirement to run a batch job at a fixed interval and have the ability to change the time of this batch job at runtime. For this I came across @Scheduled annotation provided under Spring framework. But I’m not sure how I’d change the value of fixedDelay at runtime. I did some googling ar…