What is the maven dependency for spring batch?

Hi,

I have a project and I downloaded the example code of running the batch program in Eclipse. But it is not able to find the following classes:

import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;

My project is based on the maven tool. What is the maven dependency for spring batch?

Thanks