problem after update/delete object

xnpeng · **Joined:** Mon Mar 23, 2009 5:47 am **Posts:** 5

I do not find any topics on my problem. After I change some field (i.e. "address"),and then update it to db. then content in db are changed. For example ,original:address = "room" ,current :address="room2". After I press update,the value displayed in webpage and database are correct. then I go to another page to view the result, the value changed back to original. When I refresh the page, it changed to current value(correct),and refresh again,it changed to original value(incorrect). The value changed every othertime when I refresh the page.
what's the reason? how to settle it?

Even terrible , when I delete an object, the other time when I refresh the view page, it display and disappear!

I think it is something with the session operation.
I do it with session.flush()/session.clear(),still no effect.

the mapping file:

Code:

<hibernate-mapping>
    <class name="com.xunan.sitexa.site.data.Site" table="T_Site" schema="dbo" catalog="sitexa">
        <id name="siteId" type="java.lang.String">
            <column name="SiteId" length="50"/>
            <generator class="assigned"/>
        </id>
        <many-to-one name="type" class="com.xunan.sitexa.site.data.SiteType" update="true" insert="true">
            <column name="TypeId" length="50" not-null="true"/>
        </many-to-one>
        <many-to-one name="parent" class="com.xunan.sitexa.site.data.Site" update="true" insert="true">
            <column name="ParentId" length="50"/>
        </many-to-one>
        <property name="name" type="java.lang.String">
            <column name="Name" length="200"/>
        </property>
        <property name="createDate" type="java.util.Date">
            <column name="CreateDate" length="23"/>
        </property>
        <property name="address" type="java.lang.String">
            <column name="Address" length="500"/>
        </property>
        <property name="status" type="java.lang.Boolean">
            <column name="Status" length="1" not-null="true"/>
        </property>
        <many-to-one name="governor" class="com.xunan.sitexa.user.data.Member">
            <column name="Governor" length="50"/>
        </many-to-one>
        <property name="introduction" type="java.lang.String">
            <column name="Introduction" length="1000"/>
        </property>
        <property name="longitude" type="java.lang.Float">
            <column name="Longitude"/>
        </property>
        <property name="latitude" type="java.lang.Float">
            <column name="Latitude"/>
        </property>
        <property name="zoom" type="java.lang.Integer">
            <column name="Zoom"/>
        </property>
        <property name="vwCnt" type="java.lang.Integer">
            <column name="VwCnt"/>
        </property>
        <set name="properties" inverse="true" order-by="propId">
            <key>
                <column name="SiteId" length="50" not-null="true"/>
            </key>
            <one-to-many class="com.xunan.sitexa.site.data.SiteProperty"/>
        </set>
        <set name="pictures" inverse="true" order-by="picId">
            <key>
                <column name="SiteId" length="50" not-null="true"/>
            </key>
            <one-to-many class="com.xunan.sitexa.site.data.SitePicture"/>
        </set>
        <set name="children" inverse="true" order-by="siteId">
            <key>
                <column name="ParentId" length="50" not-null="true"/>
            </key>
            <one-to-many class="com.xunan.sitexa.site.data.Site"/>
        </set>
        <set name="members" inverse="true" order-by="siteId">
            <key>
                <column name="SiteId" length="50" not-null="true"/>
            </key>
            <one-to-many class="com.xunan.sitexa.site.data.SiteMember"/>
        </set>
    </class>
</hibernate-mapping>

and the DAO class

Code:

    public Session getSession() {
        if (null == this.session)
            session = HibernateSessionFactory.getSession();
        return session;
    }

    protected void delete(Object object) {
        Transaction tx = session.beginTransaction();
        tx.begin();
        session.delete(object);
        tx.commit();
        session.flush();
        session.clear();
    }

    protected void save(Object object) {
        Transaction tx = session.beginTransaction();
        tx.begin();
        session.save(object);
        tx.commit();
    }

    protected void update(Object object) {
        Transaction tx = session.beginTransaction();
        tx.begin();
        session.update(object);
        tx.commit();
    }

    protected void saveOrUpdate(Object object) {
        Transaction tx = session.beginTransaction();
        tx.begin();
        session.saveOrUpdate(object);
        tx.commit();
    }

Sukirtha · **Posted:** Mon Jun 01, 2009 8:29 am

Make sure you are not having duplicate objects - one for displaying and another for persisting. Please post the snippent where you call the save method and the snippet where you render the screen.