UserManager.java

package com.partynetwork.iparty.app.manager;

import com.lidroid.xutils.db.sqlite.Selector;
import com.lidroid.xutils.exception.DbException;
import com.partynetwork.dataprovider.util.OpenfireUtil;
import com.partynetwork.iparty.app.entities.CommonUser;

import android.content.Context;

/**
 * 用户管理
 * 
 * @author 沈跃双
 */
public class UserManager extends BaseManager {
	private static UserManager userManager = null;

	private UserManager(Context context) {
		super(context);
	}

	public static UserManager getInstance(Context context) {
		if (userManager == null) {
			userManager = new UserManager(context);
		}
		return userManager;
	}

	/**
	 * 保存或则更新用户
	 * 
	 * @param user
	 * @throws DbException
	 */
	public void saveOrUpdateUser(CommonUser user) {
		try {
			db.saveOrUpdate(user);
		} catch (DbException e) {
			e.printStackTrace();
		}
	}

	/**
	 * 
	 * 保存用户.
	 * 
	 * @throws DbException
	 * 
	 */
	public long saveUser(CommonUser user) throws DbException {
		db.saveBindingId(user);
		return db.findFirst(user);
	}

	/**
	 * 更具Id获取UserInfo
	 * 
	 * @param userId
	 * @return
	 * @throws DbException
	 */
	public CommonUser getUserbyId(String userId) {

		String sUserId = OpenfireUtil.getUserNameByJid(userId);

		CommonUser user = null;
		try {
			user = db.findFirst(Selector.from(CommonUser.class).where(
					"user_id", "=", sUserId));
		} catch (DbException e) {
			e.printStackTrace();
		}
		return user;
	}

	/**
	 * 更新用户信息
	 * 
	 * @param user
	 * @throws DbException
	 */
	public void updateUser(CommonUser user) throws DbException {
		db.update(user);
	}

	/**
	 * 查看用户Id是否存在
	 * 
	 * @param userId
	 * @return
	 * @throws DbException
	 */
	public boolean hasUser(int userId) throws DbException {
		CommonUser info = db.findFirst(Selector.from(CommonUser.class).where(
				"user_id", "=", userId));
		if (info == null) {
			return false;
		} else {
			return true;
		}
	}
}