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GenericGenerator at package-level not working

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_0R10N

Post subject: GenericGenerator at package-level not working

Posted: Sun Feb 16, 2014 5:01 pm

Newbie

Joined: Wed Apr 24, 2013 7:51 am
Posts: 3

Hi all! I'm trying to specify a GenericGenerator at package-level but, no matter what I try I always end up with the same exception.

package-info.java

Code:

@GenericGenerator(
        name = "mygenerator",
        strategy = "org.hibernate.id.enhanced.TableGenerator",
        parameters = {
            @Parameter(name = "sequence_name", value = "MY_SEQUENCE"),
            @Parameter(name = "initial_value", value = "1000"),
            @Parameter(name = "optimizer", value = "pooled"),
            @Parameter(name = "increment_size", value = "10")
        }
    )
package com.somepackage.domain;


import org.hibernate.annotations.GenericGenerator;
import org.hibernate.annotations.Parameter;

My Entity

Code:

package com.somepackage.domain;


import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.validation.constraints.NotNull;

@Entity
public class Account{
   @Id
   @GeneratedValue(generator = "mygenerator")
   private Long id;


    @NotNull
    private String name;


    //...

}

The Exception

Quote:

Caused by: org.hibernate.AnnotationException: Unknown Id.generator: mygenerator
at org.hibernate.cfg.BinderHelper.makeIdGenerator(BinderHelper.java:639)
at org.hibernate.cfg.AnnotationBinder.processId(AnnotationBinder.java:2159)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:2065)
at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:767)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:686)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3540)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3494)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1379)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1784)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1868)

I'm using Tomcat7 and OpenJDK7

Regards!

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_0R10N

Post subject: Re: GenericGenerator at package-level not working

Posted: Sun Feb 16, 2014 8:05 pm

Newbie

Joined: Wed Apr 24, 2013 7:51 am
Posts: 3

I solved the problem myself. I needed to tell my sessionFactory to scan that package for metadata.

Code:

sessionFactory.setAnnotatedPackages(new String[]{"com.somepackage.domain"});

Or, if you're using XML, this should be placed in your Hibernate configuration file.

Code:

I posted the example in my blog.

http://arecordon.blogspot.com.ar/2014/02/hibernate-advanced-features-package.html

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