hierarchymenucontroller.java

一个购房管理系统,JSF+Hibernate+Mssql2

/*
 * HierarchyMenuController.java
 *
 * Created on 2007��6��2��, ����11:01
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package com.housesale.jsfbean;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;

import org.hibernate.Query;

import com.housesale.hibernate.HierarchyMenu;
import com.housesale.hibernate.dao.HierarchyMenuDAO;

/**
 * 
 * @author msq
 */
public class HierarchyMenuController {

	/** Creates a new instance of HierarchyMenuController */
	public HierarchyMenuController() {
	}

	private HierarchyMenu hierarchyMenu;

	private DataModel model;

	private HierarchyMenuDAO getEntityManager() {
		HierarchyMenuDAO.initialize();
		return new HierarchyMenuDAO();
	}

	private int batchSize = 10;

	private int firstItem = 0;

	private String queryProperty;

	private String queryValue;

	private int itemCount = 0;

	public DataModel getModel() {
		return model;
	}

	public void setModel(DataModel model) {
		this.model = model;
	}

	public String getQueryProperty() {
		return queryProperty;
	}

	public void setQueryProperty(String queryProperty) {
		this.queryProperty = queryProperty;
	}

	public String getQueryValue() {
		return queryValue;
	}

	public void setQueryValue(String queryValue) {
		this.queryValue = queryValue;
	}

	public void setItemCount(int itemCount) {
		this.itemCount = itemCount;
	}

	public HierarchyMenu getHierarchyMenu() {
		return hierarchyMenu;
	}

	public void setHierarchyMenu(HierarchyMenu hierarchyMenu) {
		this.hierarchyMenu = hierarchyMenu;
	}

	public DataModel getDetailHierarchyMenus() {
		return model;
	}

	public void setDetailHierarchyMenus(Collection<HierarchyMenu> m) {
		model = new ListDataModel(new ArrayList(m));
	}

	public String createSetup() {
		this.hierarchyMenu = new HierarchyMenu();
		this.hierarchyMenu.setId(0);
		return "hierarchyMenu_create";
	}

	public String create() {
		HierarchyMenuDAO em = getEntityManager();
		try {

			em.save(hierarchyMenu);

			addSuccessMessage("HierarchyMenu was successfully created.");
		} catch (Exception ex) {
			try {
				addErrorMessage(ex.getLocalizedMessage());

			} catch (Exception e) {
				addErrorMessage(e.getLocalizedMessage());
			}
		} finally {

		}
		return "hierarchyMenu_list";
	}

	public String detailSetup() {
		setHierarchyMenuFromRequestParam();
		return "hierarchyMenu_detail";
	}

	public String editSetup() {
		setHierarchyMenuFromRequestParam();
		return "hierarchyMenu_edit";
	}

	public String edit() {
		HierarchyMenuDAO em = getEntityManager();
		try {
			em.update(hierarchyMenu);
			addSuccessMessage("HierarchyMenu was successfully updated.");
		} catch (Exception ex) {
			try {
				addErrorMessage(ex.getLocalizedMessage());

			} catch (Exception e) {
				addErrorMessage(e.getLocalizedMessage());
			}
		}
		return "hierarchyMenu_list";
	}

	public String destroy() {
		HierarchyMenuDAO em = getEntityManager();
		try {

			HierarchyMenu hierarchyMenu = getHierarchyMenuFromRequestParam();
			em.delete(hierarchyMenu);

			addSuccessMessage("HierarchyMenu was successfully deleted.");
		} catch (Exception ex) {
			try {
				addErrorMessage(ex.getLocalizedMessage());

			} catch (Exception e) {
				addErrorMessage(e.getLocalizedMessage());
			}
		}
		return "hierarchyMenu_list";
	}

	public HierarchyMenu getHierarchyMenuFromRequestParam() {
		HierarchyMenuDAO em = getEntityManager();
		HierarchyMenu o = null;
		try {
			o = (HierarchyMenu) model.getRowData();
			o = em.get(o.getId());

		} finally {
			return o;
		}
	}

	public void setHierarchyMenuFromRequestParam() {
		HierarchyMenu hierarchyMenu = getHierarchyMenuFromRequestParam();
		setHierarchyMenu(hierarchyMenu);
	}

	public String findHierarchyMenus() {

		Query q = null;
		if (this.queryProperty.equals("Id")) {
			try {
				Integer.valueOf(getQueryValue());
			} catch (NumberFormatException e) {
				addErrorMessage(e.getLocalizedMessage());
				return "hierarchyMenu_list";
			}
			q = this.getEntityManager().findByProperty(getQueryProperty(),
					Integer.valueOf(getQueryValue()));
		} else if(this.queryProperty.equals("all")){
			q = this.getEntityManager().getQuery("from HierarchyMenu as o");
		}else{
			q = this.getEntityManager().findByProperty(getQueryProperty(),
					getQueryValue());
		}
		List list = q.list();
		this.setItemCount(list.size());
		q.setMaxResults(batchSize);
		q.setFirstResult(firstItem);		
		model = new ListDataModel(q.list());
		this.getEntityManager().closeCurrentSession();
		return "hierarchyMenu_list";
	}

	public static void addErrorMessage(String msg) {
		FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR,
				msg, msg);
		FacesContext fc = FacesContext.getCurrentInstance();
		fc.addMessage(null, facesMsg);
	}

	public static void addSuccessMessage(String msg) {
		FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO,
				msg, msg);
		FacesContext fc = FacesContext.getCurrentInstance();
		fc.addMessage("successInfo", facesMsg);
	}

	public HierarchyMenu findHierarchyMenu(Integer id) {
		HierarchyMenuDAO em = getEntityManager();
		HierarchyMenu o = null;
		try {
			o = (HierarchyMenu) em.get(id);

		} finally {
			return o;
		}
	}

	public int getItemCount() {
		return this.itemCount;
	}

	public int getFirstItem() {
		return firstItem;
	}

	public int getLastItem() {
		int size = getItemCount();
		return firstItem + batchSize > size ? size : firstItem + batchSize;
	}

	public int getBatchSize() {
		return batchSize;
	}

	public String next() {
		if (firstItem + batchSize < getItemCount()) {
			firstItem += batchSize;
		}
		findHierarchyMenus();
		return "hierarchyMenu_list";
	}

	public String prev() {
		firstItem -= batchSize;
		if (firstItem < 0) {
			firstItem = 0;
		}
		findHierarchyMenus();
		return "hierarchyMenu_list";
	}

}