package com.relationinfo.webapp.action;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import com.relationinfo.Constants;import com.relationinfo.model.Product;import com.relationinfo.service.Manager;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.Controller;public class ProductController implements Controller {    private final Log log = LogFactory.getLog(ProductController.class);    private Manager manager = null;    public void setManager(Manager manager) {        this.manager = manager;    }    public ModelAndView handleRequest(HttpServletRequest request,                                      HttpServletResponse response)    throws Exception {        if (log.isDebugEnabled()) {            log.debug("entering 'handleRequest' method...");        }        return new ModelAndView("productList", Constants.PRODUCT_LIST,                                manager.getObjects(Product.class));    }}