Apex passing parameters to Batch job during scheduling

Here it the use case:

You have 1 job that you want to run weekly and monthly but the monthly job also has to generate a notification. You don’t need to create two classes but can pass a parameter to the schedule to know it is a weekly or monthly job.

The batch Job class that accepts constructor parameter jobRunFrequency
global class AccountBatchJob implements System.Schedulable, Database.Batchable<SObject>, Database.Stateful, Database.AllowsCallouts {

	private static final String RUN_WEEKLY_JOB = 'RUN_WEEKLY_JOB';
	//This is the key that needs to be used to generate notifications for Monthly 
	private static final String RUN_MONTHLY_JOB = 'RUN_MONTHLY_JOB';
	private String jobRunFrequency;

	String query = 'Select Id, FirstName, LastName from Account';

	public AccountBatchJob(){
		this.jobRunFrequency = RUN_WEEKLY_JOB;

	public AccountBatchJob(String jobRunFrequency){
		this.jobRunFrequency = jobRunFrequency;

        global Database.QueryLocator start(Database.BatchableContext BC) {
		return Database.getQueryLocator(query);

    global void execute(Database.BatchableContext BC, List<Account> accounts) {
     if (RUN_MONTHLY_JOB.equalsIgnoreCase(jobRunFrequency)){

Test class for batch Job passing parameter check if it is the Monthly job

	Database.executeBatch(new AccountBatchJob('RUN_MONTHLY_JOB'), 1);

Test class Scheduler Job to check it if is the Monthly job

	String jobId = System.schedule('AccountBatchJob', '0 0 0 15 3 ? 2022', new AccountBatchJob('RUN_MONTHLY_JOB'));
	CronTrigger ct = [SELECT Id, CronExpression, TimesTriggered, NextFireTime FROM CronTrigger WHERE id = :jobId];
	System.assertEquals('0 0 0 15 3 ? 2022', ct.CronExpression);

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