Scheduling the apex Batch jobs?

Question

Suppose if i have two batch apex batch jobs 1,2. here i scheduled batch job 1 but not 2. after Batch1 completing immediately Batchjob2 will be executed how to achieve this?

Thanks, Chandra

Answer 1

You can start your second batch by calling it from the finish method of your first batch class. Take a look at the following example:

global database.querylocator start(Database.BatchableContext BC) {
    //start method logic here
}

global void execute(Database.BatchableContext BC, List<sObject> scope) {
    //start method logic here
}

global void finish(Database.BatchableContext BC) {
   //call next batch
   SecondBatch mySecondBatch = new SecondBatch();
   Id batchProcessId = Database.executeBatch(mySecondBatch);
   //finish method logic here
}

Also take a read of both links, some pretty useful info for batch chaining.

1. Link 1
2. Link 2