How to create a batch Job in AX 2012

The Batch Job can be created in Different manners. I am explaining one way for it.
Steps:

Create a class for the logic what you want you want to do. Add this class with the Batch Job. run the Batch Job. Note: If you want to run the batch job in the client mode to one more step needed.
4) run the batch job in client mode.

      Step:1 I am creating a simple class .
go to classes node in the AOT. create a New Class name it. Open Class Declaration
and extend it to the RunBaseBatch class.

class Batch4Demo extends RunBaseBatch
{
}

  after this override the run method of the class. Right click on the class in the AOT go to Override and select run method. in this run methode write your own logic like as shown bellow.

public void run()
{
//Code logic
}

after this override pack and unpack methods.

public container pack()
{
return conNull();
}

public boolean unpack(container packedClass)
{
return true;
}

now create a main method foe the class and call the run method in that (this is very important with out main you cant run the class) right click and add new method write following code.  

private void main(Args _Args)
{
    Classname b = new classname(); //name of the class
    b.run();
}

Step:2 Create a Job in the Job Node of AOT write the following code in it.

static void job_SecurityRoleBatch(Args _args)
{


    BatchHeader batHeader;
    BatchInfo batInfo;
    RunBaseBatch srTask;
    str sParmCaption = "Security Role Update Batch Job";
    ;
    srTask = new classname();
    batInfo= srTask .batchInfo();
    batInfo.parmCaption(sParmCaption);
    batInfo.parmGroupId(""); // The "Empty batch group".
    batHeader = BatchHeader ::construct();
    batHeader.addTask(srTask);
    batHeader.save();
    info(strFmt("'%1' batch has been scheduled.", sParmCaption));
}

Step:3 Now Compile the Job And Class. run the Batch Job by pressing F5. Before running Generate the IL code. Go to Build and click on Generate Incremental CIL.. It will create a Batch job in the Batch Jobs Form you can view it by going into the following path System Administration –> Inquiries –> BatchJobs –> Batch Jobs. You should see the status as waiting—> Executing –> Ended in the status column of the Batch Jobs form. Now the above batch job will run only on the server. If you want to make it run on the Client. follow bellow steps.  

Step:4 Override the method runsImpersonated. Right click on the Batch4Demo class and override the above method write the following code in it.

public boolean runsImpersonated()
{
	// false means that the batch must run on a client.
	return false;
}

Now run the class as mentioned above. After running it we have to add it to the client section to do this. Go to Organization administration –> Basic Or Periodic –> Batch Processing. open the form and you can see batch group and private check box option. in the group option select empty group( Because in the above code we have selected empty in the batch group). uncheck the private. now click ok. the batch job will run.