Sending Email Notification In finish Method

gistfile1.txt

global void finish(Database.BatchableContext BC) {
// Get the ID of the AsyncApexJob representing this batch job  
        // from Database.BatchableContext.    
        // Query the AsyncApexJob object to retrieve the current job's information.  

        AsyncApexJob a = [Select Id, Status,ExtendedStatus,NumberOfErrors, JobItemsProcessed,
        TotalJobItems, CreatedBy.Email
        from AsyncApexJob where Id =:BC.getJobId()];
        
       
       
        // Send an email to the Apex job's submitter notifying of job completion.  
            Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
            String[] toAddresses = new String[] {a.CreatedBy.Email};
            mail.setToAddresses(toAddresses);
            mail.setSubject('Match Merge Batch ' + a.Status);
            mail.setPlainTextBody('The batch Apex job processed ' + a.TotalJobItems +
           ' batches with '+ a.NumberOfErrors + ' failures.');
            Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });
 }
            

This is exactly what I was looking for, thank you.