Argument must be an object that implements Database.Batchable [ Edited ]

[Lucifer]

Im trying to run a batch apex for my code

/************************************************************************/

EscalateAnnualEnrollmentTaskProcess AE = new EscalateAnnualEnrollmentTaskProcess();
database.executebatch(AE);


/************************************************************************/


global class TaskProcess implements Schedulable {
   global void execute(SchedulableContext ctx) 
   {
      /*  */
      List<Request__c> requestIds = [SELECT Id FROM Request__c WHERE status__c != 'ACCEPTED'];
      /* list of tasks associated near overdue activitydate - 5*/
      List<Task>Overdue =new List<Task>([SELECT Id, ActivityDate, Subject FROM Task WHERE WhatId IN :requestIds AND IsClosed = false]);
      /* iterate over the tasks */
      for (Task t:tasksNearOverdue) {
         /* lookup the object */
         Request__c request = [SELECT Id, Project_Manager__c, Director__c FROM Request__c WHERE Id = :t.WhatId];
 

         /* lookup the user and send the email*/
         User manager = [SELECT Id, Name, Email FROM User WHERE Id = :request.Project_Manager__c];
         sendemail(projectmanager, t);
         /* lookup the user and send the email */
         User director =  [SELECT Id, Name, Email FROM User WHERE Id = :request.Director__c];
         sendemail(director, t);
      }
   
 } 
   global void sendemail(User u, Task t)
   {
      Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();
      string[] toaddress = New String[] {u.Email};
      email.setSubject('Task Almost Overdue');
      email.setPlainTextBody(t.Subject + 'is due ' + t.ActivityDate + ' and needs some attention.');
      email.setToAddresses(toaddress);
      Messaging.sendEmail(New Messaging.SingleEmailMessage[] {email});
   }
}

[Lucifer]

It is giving me the error " Argument must be an object that implements Database.Batchable"

[bob_buzzard · Accepted solution]

This is because you are implementing the schedulable rather than batchable interface  Shedulable allows apex code to be scheduled, but you can't invoke executebatch on it.

[Lucifer]

Thanks Bob. This code is for email alerts for the project manager and Directors for Overdue tasks. I wanted to see if the code is working.. How do I test for schedulable jobs

[bob_buzzard]

There's an example test class at:

http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_scheduler.htm

[Lucifer]

Thanks Bob.. I wil figure it out..

[Svel]

Hi,

In your apex class add the (implements Database.Batchable<sObject>) line,

instead of implements Schedulable

For Ex,

global class TaskProcess implements Database.Batchable<sObject> {

//your code

for more info read theblogreaders.com