How to check whether apex batch job for the same class is running or not in APEX SALESFORCE

SNIPPET:

/*************** START OF THE CLASS***************************/
 List lstAsyncApexJob =  [SELECT Id, ApexClass.Name, status  FROM AsyncApexJob WHERE status = 'Processing' AND Id != BC.getJobId AND JobType='BatchApex'];
 
 if(!lstAsyncApexJob.IsEmpty()){
 return emty_List;
 }else{
 return Query_List;
 }

/*************** REST OF THE CLASS***************************/