0

I need to do a batch which calls itself until a condition is true. I don't know how to start. I've tried some things but I got an infinite loop.

The idea is:

  1. I have a start date Ex: 2019-01-01
  2. Make some things with that date
  3. Check if the date is the current date. If true, finish. If false, add 1 day to the start date and run again. (in the 2nd lap the start date would be 2019-01-02, etc.)

How can I achieve this?. I can't do it on a do-while loop, it's neccesary do it in an apex batch.

I hope you can help me. Thanks in advance

  • do you want to run execute the batch once in a day? – rahul gawale Nov 12 '19 at 13:32
  • no, I need to cover an interval of dates every day – Javier Nov 12 '19 at 13:38
  • ok but batch will run only once in a day, right? – rahul gawale Nov 12 '19 at 13:48
1

You can call batch from the previous batch finish() method. For example,

Initial step to call in developer console or anonymous is Database.executeBatch(new RecursiveBatch(Date.valueOf('2019-01-01')));

Then you can use this stub.

public class RecursiveBatch implements Database.Batchable<sObject>, Database.AllowsCallouts, Database.Stateful {
private final Date passedDate;

public RecursiveBatch(Date passedDate) {
    this.passedDate = passedDate;
}

public Database.QueryLocator start(Database.BatchableContext BC) {
    return Database.getQueryLocator( < QUERY >);
}

public void execute(Database.BatchableContext BC, List<sObject> scope) {

}

public void finish(Database.BatchableContext BC) {
    if(Date.today() <= this.passedDate) {
        Database.executeBatch(new RecursiveBatch(passedDate.addDays(1)));
    }
}

}

  • It works! Thank you so much – Javier Nov 13 '19 at 11:57

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.