package com.baeldung.batch.understanding; import java.util.ArrayList; import java.util.List; import javax.batch.api.chunk.AbstractItemWriter; import javax.inject.Named; @Named public class SimpleChunkWriter extends AbstractItemWriter { List processed = new ArrayList<>(); @Override public void writeItems(List items) throws Exception { items.stream().map(Integer.class::cast).forEach(this.processed::add); } }