question: public static DefaultJobDefinition fixedDelayJobDefinition ( final String jobType , final String jobName , final String description , final Duration fixedDelay , final int restarts , final Optional < Duration > maxAge ) { return new DefaultJobDefinition ( jobType , jobName , description , maxAge , Optional . of ( fixedDelay ) , Optional . empty ( ) , restarts , 0 , Optional . empty ( ) ) ; }
target:  Create a JobDefinition that is using fixed delays specify, when and how often the job should be triggered.