API Code to Update Scheduled Job Parameter & Schedule Job Using Cron trigger

package com.scheduler;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Date;

import com.connection.Platform;

import oracle.iam.scheduler.api.SchedulerService;
import oracle.iam.scheduler.vo.CronTrigger;
import oracle.iam.scheduler.vo.JobDetails;
import oracle.iam.scheduler.vo.JobParameter;
import oracle.iam.scheduler.vo.Trigger;


public class UpdateScheduledJobParameter {

 public static void main(String[] args){
  new UpdateScheduledJobParameter().updateScheduledJobParameter("Retry Task1", "Recurring Interval", "MONTHLY");  
 }
 public void updateScheduledJobParameter(String jobName, String paramName, String paramValue) {
     final String logp = " :: updateScheduledJobParameter - ";
     System.out.println(logp + "START");
     SchedulerService schedulerService = null;

     try{
         //get scheduler service
         schedulerService = Platform.getService(SchedulerService.class); 
         JobDetails jobDetail = schedulerService.getJobDetail(jobName);
         
         HashMap jobAttributes = jobDetail.getAttributes();
         System.out.println("JobDetails Object Getting Params ");
   HashMap<String, JobParameter> jobParameters = jobDetail.getParams();   
   System.out.println( "  name               : " + jobDetail.getName());
   System.out.println( "  class name         : " + jobDetail.getTaskClassName());
   System.out.println( "  task key           : " + jobDetail.getTaskKey());
   System.out.println( "  task name          : " + jobDetail.getTaskName());
   System.out.println( "  method             : " + jobDetail.getMethod());
   System.out.println( "  job schedule type  : " + jobDetail.getJobScheduleType());
   System.out.println( "  job listener       : " + jobDetail.getJobListener());
   System.out.println( "  cron schedule type : " + jobDetail.getCronScheduleType());
   System.out.println( "  retry count        : " + jobDetail.getRetrycount());
   if(null!=jobParameters && jobParameters.size()>0){
    Iterator itrJobParams = jobParameters.keySet().iterator();
    while (itrJobParams.hasNext()) {
     String hashKey=itrJobParams.next().toString();
     Object obj = jobParameters.get(hashKey);
     JobParameter jp = null;

     if (null != obj && obj instanceof JobParameter) {
      jp = (JobParameter) obj;
      System.out.println( "      data type     : " + jp.getDataType());
      System.out.println( "      name          : " + jp.getName());
      System.out.println( "      parameter key : " + jp.getParameterKey());
      Serializable val = jp.getValue();
      System.out.println( "      value         : " + val);       
      System.out.println();
     }
    }
   }else{
    System.out.println("  jobParameters Null in the task Name -> "+jobDetail.getTaskName());
   }
   
   
         JobParameter jbParam = new JobParameter();
         jbParam.setName(paramName);
         jbParam.setValue(paramValue);

         jobAttributes.put(paramName, jbParam);

         jobDetail.setAttributes(jobAttributes);
         System.out.println(logp + "Updated job attributes - " + jobAttributes);
         //
         
   
    
        Trigger[] triggers= schedulerService.getTriggersOfJob("Retry Task1");
        for(Trigger trigg : triggers ){
         schedulerService.deleteTrigger(trigg.getName());
         
        }
         JobDetails jb = new JobDetails();
   jb.setName(jobDetail.getName());
   jb.setJobScheduleType(jobDetail.getJobScheduleType());
   jb.setCronScheduleType(jobDetail.getCronScheduleType());
   jb.setRetrycount(jobDetail.getRetrycount());
   
   schedulerService.updateJob(jobDetail);
   
        schedulerService.scheduleJob(jobDetail.getName(), new CronTrigger(jobDetail.getName(),new Date(),null, "8 46 15 ? * 3,4,5,6,7,1 *"));        
        
        
      
         System.out.println(logp + "Job updated successfully");

     }catch(Exception e){
      System.out.println(logp + "Exception occured while updating scheduled job parameters - " + e);
     }
     
     System.out.println(logp + "END");
 } 
}