【Java开源代码栏目提醒】:网学会员鉴于大家对Java开源代码十分关注,论文会员在此为大家搜集整理了“TopicUtil.java”一文,供大家参考学习
/*
* TopicUtil.java
*
* Created on 2006年6月13日, 下午11:45
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
package model.
bbs.hibernate;
import dbservice.hibernate.HibernateService;
import java.util.HashSet;
import java.util.List;
import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;
/**
*
* @author Administrator
*/
public class TopicUtil {
public static boolean insert(Topic topic) {
Transaction transaction = null;
Session session = null;
boolean b = false;
try {
session = HibernateService.getSession();
transaction = session.beginTransaction();
topic.setArticles(new HashSet());
session.save(topic);
transaction.commit();
b = true;
}
catch (HibernateException he) {
he.printStackTrace();
HibernateService.rollbackTransaction(transaction);
b = false;
}
catch (Exception e) {
e.printStackTrace();
b = false;
}
finally {
HibernateService.closeSession(session);
return b;
}
}
public static boolean update(String id, Topic topic) {
Transaction transaction = null;
Session session = null;
boolean b = false;
try {
session = HibernateService.getSession();
transaction = session.beginTransaction();
Topic t = new Topic();
session.load(t, Integer.valueOf(id));
t.setName(topic.getName());
t.setRemarks(topic.getRemarks());
session.update(t);
transaction.commit();
b = true;
}
catch (HibernateException he) {
he.printStackTrace();
HibernateService.rollbackTransaction(transaction);
b = false;
}
catch (Exception e) {
e.printStackTrace();
b = false;
}
finally {
HibernateService.closeSession(session);
return b;
}
}
public static List find(String sql, int firstPage, int maxSize) {
List list = null;
Transaction transaction = null;
Session session = null;
try {
session = HibernateService.getSession();
transaction = session.beginTransaction();
list = HibernateService.execQuery(
sql, firstPage, maxSize);
transaction.commit();
}
catch (HibernateException he) {
he.printStackTrace();
HibernateService.rollbackTransaction(transaction);
list = null;
}
catch (Exception e) {
e.printStackTrace();
list = null;
}
finally {
HibernateService.closeSession(session);
return list;
}
}
public static List findAll() {
List list = null;
Transaction transaction = null;
Session session = null;
try {
session = HibernateService.getSession();
transaction = session.beginTransaction();
list = HibernateService.execQuery("from Topic");
transaction.commit();
}
catch (HibernateException he) {
he.printStackTrace();
HibernateService.rollbackTransaction(transaction);
list = null;
}
catch (Exception e) {
e.printStackTrace();
list = null;
}
finally {
HibernateService.closeSession(session);
return list;
}
}
public static Topic find(String id) {
Topic topic = null;
Transaction transaction = null;
Session session = null;
try {
session = HibernateService.getSession();
transaction = session.beginTransaction();
topic = new Topic();
session.load(topic, Integer.valueOf(id));
transaction.commit();
}
catch (HibernateException he) {
he.printStackTrace();
HibernateService.rollbackTransaction(transaction);
topic = null;
}
catch (Exception e) {
e.printStackTrace();
topic = null;
}
finally {
HibernateService.closeSession(session);
return topic;
}
}
public static boolean delete(String id) {
Transaction transaction = null;
Session session = null;
boolean b = false;
try {
session = HibernateService.getSession();
transaction = session.beginTransaction();
Topic topic = new Topic();
session.load(topic, Integer.valueOf(id));
session.delete(topic);
transaction.commit();
b = true;
}
catch (HibernateException he) {
he.printStackTrace();
HibernateService.rollbackTransaction(transaction);
b = false;
}
catch (Exception e) {
b = false;
e.printStackTrace();
}
finally {
HibernateService.closeSession(session);
return b;
}
}
public static boolean addArticles(String id, Article article) {
Transaction transaction = null;
Session session = null;
boolean b = false;
try {
session = HibernateService.getSession();
transaction = session.beginTransaction();
Topic topic = new Topic();
session.load(topic, Integer.valueOf(id));
article.setTopic(topic);
session.update(topic);
transaction.commit();
b = true;
}
catch (HibernateException he) {
he.printStackT