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 Post subject: Hibernate dynamic models with level 2 cache gives exception.
PostPosted: Tue Apr 26, 2016 1:28 am 
Newbie

Joined: Tue Apr 26, 2016 12:32 am
Posts: 2
I am using dynamic models for entity creation and i need to provide caching over it. But i am getting exception "Unable to read XML"

Step 1. Creating Dynamic model entity. Runs fine. I can save update using this entity.

<hibernate-mapping>

<class entity-name="Customer">

<id name="id"
type="long"
column="ID">
<generator class="identity"/>
</id>

<property name="name"
column="NAME"
type="string"/>

<property name="address"
column="ADDRESS"
type="string"/>

</class>
</hibernate-mapping>
The entity is created at run time.

Step 2. Specify <property name="hbm2ddl.auto">update</property> in cfg xml. Runs fine, it creates the table as well if it does not exists.

3. Now i need to provide 2nd level cache on this entity but first i do not find any documentation for it straightaway.
Second specifying <cache usage="read-write" /> in dynamic model entity gives exception as below. (Creating entity classes with annotations instead of dynamic models runs fine without exceptions, already tested)

Exception stack trace:

org.hibernate.InvalidMappingException: Unable to read XML
at org.hibernate.internal.util.xml.MappingReader.legacyReadMappingDocument(MappingReader.java:375)
at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:304)
at org.hibernate.cfg.Configuration.add(Configuration.java:516)
at org.hibernate.cfg.Configuration.add(Configuration.java:512)
at org.hibernate.cfg.Configuration.add(Configuration.java:686)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:769)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2255)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2227)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2207)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2160)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2075)
at util.HibernateUtil.buildSessionFactory(HibernateUtil.java:19)
at util.HibernateUtil.getSessionFactory(HibernateUtil.java:37)
at main.DynamicMain.main(DynamicMain.java:21)
Caused by: org.xml.sax.SAXParseException; lineNumber: 44; columnNumber: 13; The content of element type "class" must match "(meta*,subselect?,cache?,synchronize*,comment?,tuplizer*,(id|composite-id),discriminator?,natural-id?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|properties|any|map|set|list|bag|idbag|array|primitive-array)*,((join*,subclass*)|joined-subclass*|union-subclass*),loader?,sql-insert?,sql-update?,sql-delete?,filter*,fetch-profile*,resultset*,(query|sql-query)*)".
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)

I need help in resolving this. If any extra code snippet required then let me know.


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 Post subject: Re: Hibernate dynamic models with level 2 cache gives exception.
PostPosted: Tue Apr 26, 2016 2:10 am 
Hibernate Team
Hibernate Team

Joined: Thu Sep 11, 2014 2:50 am
Posts: 1630
Location: Romania
Try it like this:

Code:
<hibernate-mapping>

    <class entity-name="Customer">
   
        <cache usage="read-write"> 
   
        <id name="id"
            type="long"
            column="ID">
            <generator class="identity"/>
        </id>

    <property name="name"
        column="NAME"
        type="string"/>

    <property name="address"
        column="ADDRESS"
        type="string"/>

    </class>
   
</hibernate-mapping>


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 Post subject: Re: Hibernate dynamic models with level 2 cache gives exception.
PostPosted: Tue Apr 26, 2016 9:05 am 
Newbie

Joined: Tue Apr 26, 2016 12:32 am
Posts: 2
I had already worked it out. Anyways, thanks for your response.


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