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Strange error when using Hibernate

 
Hakan Axheim
Greenhorn
Posts: 9
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I'm really new to Hibernate. I use both Spring and Hibernate. I am almost finished with my test application. Everything works fine and I see with MySQL Query Browser that records will be inserted into the database from my Web browser. I have also made a web page that reads records from my database and I see all my insterted records in that web page.

Now, to the strange part!

After a while - maybe 5-10 minutes all my inserted data will disappear from the database. Why? Can someone help med describe that? Is autocommit turned off? Some default value that must be changed?

This is my mapping file;

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="businessLayer.Project" table="project">
<id name="id" column="id" type="java.lang.Integer">
<generator class="native"/>
</id>
<property name="ProjectId" type="java.lang.Integer"/>
<property name="ProjectNumber" type="java.lang.Integer"/>
<property name="ProjectName" type="java.lang.String"/>
</class>

</hibernate-mapping>
 
Santosh Ramachandrula
Ranch Hand
Posts: 252
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do you have the following set in your hibernate.cfg.xml




If yes, comment out this setting and see if it works
 
It is sorta covered in the JavaRanch Style Guide.
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