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2010-06-01T05:02:38Z

1 версия

в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== HSQL Update With Parameters ==

<p>File: Main.java</p>



<source lang="java">
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
public class Main {
public static void main(String[] args) throws Exception {
HibernateUtil hibernateUtil = new HibernateUtil();
hibernateUtil
.executeSQLCommand("create table survey (id int,name varchar, purchasedate date);");
Session session = hibernateUtil.getSession();
Survey survey = new Survey();
survey.setName("Survey");
survey.setPurchaseDate(new Date());
session.save(survey);

survey = new Survey();
survey.setName("Survey1");
survey.setPurchaseDate(new Date());
session.save(survey);

session.flush();

String hql = "update Survey set name = :newName where name = :name";
Query query = session.createQuery(hql);
query.setString("name","Survey");
query.setString("newName","Corp");
int rowCount = query.executeUpdate();
System.out.println("Rows affected: " + rowCount);

session.close();
hibernateUtil.checkData("select * from survey");
}
}</source>



== Update entity in a Session ==

<p>File: Main.java</p>



<source lang="java">
import java.util.Iterator;
import java.util.List;
import org.hibernate.Session;
public class Main {
public static void main(String[] args) throws Exception {
HibernateUtil hibernateUtil = new HibernateUtil();
hibernateUtil
.executeSQLCommand("create table CD(id varchar,title varchar,artist varchar,purchaseDate date,cost decimal(6,2))");

Session session = hibernateUtil.getSession();
CD cd = new CD();
cd.setArtist("artist");
cd.setTitle("title");

String id = (String)session.save(cd);
System.out.println(id);
session.flush();
cd.setTitle("title1");
session.update(cd);
session.flush();
session.close();
hibernateUtil.checkData("select * from CD");
}
}</source>

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Java Tutorial/Hibernate/Update - История изменений

Admin: 1 версия

в 17:44, 31 мая 2010