Hi,
I'm trying to write an application based on hibernate 3, I'm using the cglib2.1.3 and when I run my application I got the following exception:
Code:
Exception in thread "main" org.hibernate.LazyInitializationException: could not initialize proxy - no Session
at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:57)
at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:150)
at g2.database.mapping.Person$$EnhancerByCGLIB$$c482508f.getName(<generated>)
at main.Main.main(Main.java:26)
The application is very simple: I've got a person table and a role table, and the following are the mappings:
Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping package="g2.database.mapping">
<class
name="Person"
table="person"
>
<meta attribute="sync-DAO">true</meta>
<id
name="Id"
type="string"
column="personid"
>
<generator class="sequence"/>
</id>
<property
name="Personpk"
column="personpk"
type="integer"
not-null="true"
length="10"
/>
<property
name="Name"
column="name"
type="string"
not-null="false"
length="20"
/>
<property
name="Surname"
column="surname"
type="string"
not-null="false"
length="20"
/>
<property
name="Borndate"
column="borndate"
type="date"
not-null="false"
length="13"
/>
<property
name="Phone"
column="phone"
type="string"
not-null="false"
length="50"
/>
<property
name="Mobilephone"
column="mobilephone"
type="string"
not-null="false"
length="50"
/>
<property
name="Fax"
column="fax"
type="string"
not-null="false"
length="50"
/>
<property
name="Email"
column="email"
type="string"
not-null="false"
length="50"
/>
<property
name="Web"
column="web"
type="string"
not-null="false"
length="100"
/>
<property
name="RecordDate"
column="record_date"
type="date"
not-null="false"
length="13"
/>
<set name="roles" table="j_person_role" >
<key column="personpk"/>
<many-to-many column="rolepk"
unique="true"
class="Role" />
</set>
</class>
</hibernate-mapping>
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping package="g2.database.mapping">
<class
name="Role"
table="role"
>
<meta attribute="sync-DAO">true</meta>
<id
name="Id"
type="integer"
column="rolepk"
>
<generator class="sequence"/>
</id>
<property
name="Roleid"
column="roleid"
type="string"
not-null="true"
length="50"
/>
<property
name="Rolerevision"
column="rolerevision"
type="java.lang.Long"
not-null="true"
length="10"
/>
<property
name="Description"
column="description"
type="string"
not-null="false"
length="100"
/>
<property
name="Revisioncomment"
column="revisioncomment"
type="string"
not-null="false"
length="100"
/>
<property
name="Creationdate"
column="creationdate"
type="date"
not-null="false"
length="13"
/>
<property
name="Revisiondate"
column="revisiondate"
type="date"
not-null="false"
length="13"
/>
</class>
</hibernate-mapping>
If I set all the classes and collection with lazy="false" the application works. Is there a way to use the lazy loading?
Thanks,
Luca