usergroup.java

一个关于物流的管理系统

package com.shunshi.ssh.entity;

import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

public class UserGroup implements Serializable{

	private Integer id;  //唯一标识
	private String groupName;   //用户组名
	private Set users=new HashSet();
	private Set permissions=new HashSet();
	
	public UserGroup() {
		super();
	}

	public UserGroup(String groupName) {
		super();
		this.groupName = groupName;
	}

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getGroupName() {
		return groupName;
	}

	public void setGroupName(String groupName) {
		this.groupName = groupName;
	}

	public Set getUsers() {
		return users;
	}

	public void setUsers(Set users) {
		this.users = users;
	}

	public Set getPermissions() {
		return permissions;
	}

	public void setPermissions(Set permissions) {
		this.permissions = permissions;
	}
	
	public void addUser(User user){
		users.add(user);
		if(user!=null)
			user.setUserGroup(this);
	}

	@Override
	public String toString(){
		return this.groupName;
	}
	
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result
				+ ((groupName == null) ? 0 : groupName.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		UserGroup other = (UserGroup) obj;
		if (groupName == null) {
			if (other.groupName != null)
				return false;
		} else if (!groupName.equals(other.groupName))
			return false;
		return true;
	}
}