ClassMetaData « Core « JPA Q&A

1. Why was hibernate's ClassMetadata.getIdentifier(Object, EntityMode) deprecated    stackoverflow.com

Just upgraded to hibernate 3.6.0 and found that this method is deprecated.

public Serializable getIdentifier(Object object, EntityMode entityMode) throws HibernateException;

public Serializable getIdentifier(Object entity, SessionImplementor session);

2. How can i get the java class from Hibernate ClassMetaData    stackoverflow.com

I'm using the following code to get all ClassMetaData from the sessionFactory.

...
Map allClassMetadata = getSessionFactory().getAllClassMetadata();
Set<String> entityNames = allClassMetadata.keySet();
for(String entityName : entityNames) {
    ClassMetadata classMetaData = (ClassMetadata)allClassMetadata.get(entityName);
   ...

3. ClassMetadata.getPropertyValue Returns NULL    forum.hibernate.org

public class A implements Serializable{ ........ @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "COLUMN_ID") private B b; ........ } public class B implements Serializable{ ...

4. How to persist - setPropertyValue method in ClassMetadata    forum.hibernate.org

Iam working on updating a mapped class property to the database using the setPropertyValue method. This is not updating the values in the database. Suggestions will be helpful. The code is excuting but not commiting to the DB. public static String setPropertyValueForClass(AssetTrackingObject object,int parentId, Class parentClass, String attributeName,String attributeValue ) { Object legacyObject = null; String result = null; Session session ...

5. Getting ClassMetadata by entity name.    forum.hibernate.org

Quote: Is there any way I could use the short entity name as specified in the annotation to get the ClassMetadata? May be not in a simple way. For some reason (bug?), the FQ name of the class (and not the entity name attribute you specify) is mapped to the corresponding class's ClassMetadata, resulting in the behavior you observe. The name ...

6. q: travelling associations found/using ClassMetadata    forum.hibernate.org

hi all, i'm doing to do the following from sec. 7 of the manual: meta is an instance of ClassMetadata obj is an instance of an unknown Class (but a hibernated obj) String[] propertyNames = meta.getPropertyNames(); Type[] propertyTypes = meta.getPropertyTypes(); Object[] propertyValues = meta.getPropertyValues( obj ); while i'm iterating over the propertyValues, i'd like to travel associations to other Objects (one-to-many ...

7. Populate SessionFactory.ClassMetaData into CachedRowset ?    forum.hibernate.org

8. Information available in ClassMetadata    forum.hibernate.org

I was wondering if it would be possible to make more information available in the ClassMetadata class, such as the property's column length, or all the columns if more than one associated with a property. This way, the app could validate the length of a string before it was submitted to the database. In a similar vein, it would be nice ...

9. ClassMetadata    forum.hibernate.org

I would like to read gladly by this interface ClassMetadata the data from a database. However I can only read data of simple PropertyTyp by the method ClassMetadata.getPropertyValue(Object obj, propertyName) and I cannot read data of CollectionTyp. Please if someone know how to read data of CollectionTyp by the interface ClassMetadata please writes some solutions. This is the Methode to read ...

10. ClassMetadata    forum.hibernate.org

I would like to read gladly by this interface ClassMetadata the data from a database. However I can only read data of simple PropertyTyp by the method ClassMetadata.getPropertyValue(Object obj, propertyName) and I cannot read data of CollectionTyp. Please if someone know how to read data of CollectionTyp by the interface ClassMetadata please writes some solutions. This is my Mapping name: Category ...

11. ClassMetaData    forum.hibernate.org

I want to use MetaData to retrieve properties information . Here is an exemple of one persitant class : Code: @Entity(access = AccessType.FIELD) @Table(name="rightapplication") public class Right extends BaseEntity { private String description; @Column(unique = true) private String name; ... } Each classes extend of ...

12. Problem with hibernate proxy object and ClassMetaData    forum.hibernate.org

Author Message edward.yakop Post subject: Problem with hibernate proxy object and ClassMetaData Posted: Wed Apr 12, 2006 1:42 am Newbie Joined: Sat Nov 22, 2003 9:21 pm Posts: 18 Location: Malaysia Hi, The problem can be summarised as follow: - If an hibernate entity object has proxy attribute is defined inside class node of hbm.xml file, ClassMetaData.getPropertyValue() of any ...

13. Read in the ClassMetadata the BasicEntityPropertyMapping.    forum.hibernate.org

Hi I try to read information about different class of my project. To do so, i use, for example, the following code. [code] ClassMetadata metadata = sessionFactory.getClassMetadata(IhmAllTabColumns.class); [/code] when i look at the metadata object, in debug mode, i see there is property whose name is '[b]propertyMapping[/b]'. It's an instance of BasicEntityPropertyMapping. When i look inside this class, i see the ...