Problème de Mapping : plusieurs à plusieurs

Invité · 20/05/2008, 13h46

Bonjour,

J'ai les objets suivants :
- 'Resource(String url, Set<Role> roles)'
- 'Role(String name)'
Une 'Resource' contient un Set de 'Role's. Un 'Role' n'a aucune référence sur les 'Resource's mais peut-être utilisé par plusieurs 'Resource's.
J'ai fais mon ammping comme indiqué dans la référence :

Code :

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<class name="xx.yy.security.Resource" table="resources">
  <id name="url"><generator class="assigned" /></id>
 
  <set name="roles" table="resources_roles">
    <key column="url" />
    <many-to-many
      class="xx.yy.beans.Role"
      column="name" 
      lazy="false" />
  </set>
</class>
 
<class name="xx.yy.beans.Role" table="roles">
  <id name="name"><generator class="assigned" /></id>
 
  <property name="description"/>
  <property name="enabled" type="java.lang.Boolean"/>
</class>

Tout se passe bien lorsque je sauve une 'Resource' et lorsque je sauve un 'Role'.

Lorsque je fais l'association 'maResource.addRole(unRole)' et que je sauve, tout semble se passer correctement également sauf que ma table de relation reste vide.

Si j'ajoute un nouveau (non sauvé) 'Role' pour une 'Resource' et que je sauve cette 'Resource' le 'Role' n'est pas sauvé.

La console ne me dis rien d'autre que du debug, mes tables sont bien créées par Hibernate avec les bonnes colonnes. Je ne vais vraiemnt pas ou est mon erreur.

Si l'un d'entre-vous à une idée, je suis preneur. Merci

Edit : Il semblerait que Hibernate ne voie pas la contenu de ma collection (déclarée comme un Set et réalisée par un TreeSet) après qu'il ai wrappé la collection :

2008-05-20 18:57:35,109 DEBUG [xx.yy.zz.dao.impl.spring.hibernate.GenericHibernateDao] - Saving Resource 'Resource login.html with roles : [Role Anonymous (Enabled)]'.
2008-05-20 18:57:35,109 DEBUG [org.springframework.orm.hibernate3.SessionFactoryUtils] - Opening Hibernate Session
2008-05-20 18:57:35,109 DEBUG [org.hibernate.impl.SessionImpl] - opened session at timestamp: 12113026551
2008-05-20 18:57:35,109 DEBUG [org.hibernate.transaction.JDBCTransaction] - begin
2008-05-20 18:57:35,109 DEBUG [org.hibernate.jdbc.ConnectionManager] - opening JDBC connection
2008-05-20 18:57:35,109 DEBUG [org.hibernate.transaction.JDBCTransaction] - current autocommit status: true
2008-05-20 18:57:35,109 DEBUG [org.hibernate.transaction.JDBCTransaction] - disabling autocommit
2008-05-20 18:57:35,109 DEBUG [org.hibernate.jdbc.JDBCContext] - after transaction begin
2008-05-20 18:57:35,109 DEBUG [org.springframework.orm.hibernate3.SessionFactoryUtils] - Opening Hibernate Session
2008-05-20 18:57:35,109 DEBUG [org.hibernate.impl.SessionImpl] - opened session at timestamp: 12113026551
2008-05-20 18:57:35,109 DEBUG [org.hibernate.event.def.DefaultSaveOrUpdateEventListener] - saving transient instance
2008-05-20 18:57:35,109 DEBUG [org.hibernate.event.def.AbstractSaveEventListener] - generated identifier: login.html, using strategy: org.hibernate.id.Assigned
2008-05-20 18:57:35,109 DEBUG [org.hibernate.event.def.AbstractSaveEventListener] - saving [xx.yy.zz.security.Resource#login.html]
2008-05-20 18:57:35,125 DEBUG [org.hibernate.event.def.WrapVisitor] - Wrapped collection in role: xx.yy.zz.security.Resource.roles
2008-05-20 18:57:35,125 DEBUG [org.springframework.orm.hibernate3.HibernateTemplate] - Eagerly flushing Hibernate session
2008-05-20 18:57:35,125 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - flushing session
2008-05-20 18:57:35,125 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - processing flush-time cascades
2008-05-20 18:57:35,125 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - dirty checking collections
2008-05-20 18:57:35,125 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - Flushing entities and processing referenced collections
2008-05-20 18:57:35,125 DEBUG [org.hibernate.event.def.WrapVisitor] - Wrapped collection in role: xx.yy.zz.security.Resource.roles
2008-05-20 18:57:35,140 DEBUG [org.hibernate.engine.Collections] - Collection found: [xx.yy.zz.security.Resource.roles#login.html], was: [<unreferenced>] (initialized)
2008-05-20 18:57:35,140 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - Processing unreferenced collections
2008-05-20 18:57:35,140 DEBUG [org.hibernate.engine.Collections] - Found collection with unloaded owner: [<unreferenced>]
2008-05-20 18:57:35,140 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - Scheduling collection removes/(re)creates/updates
2008-05-20 18:57:35,140 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - Flushed: 1 insertions, 0 updates, 0 deletions to 1 objects
2008-05-20 18:57:35,140 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - Flushed: 1 (re)creations, 0 updates, 0 removals to 2 collections
2008-05-20 18:57:35,140 DEBUG [org.hibernate.pretty.Printer] - listing entities:
2008-05-20 18:57:35,140 DEBUG [org.hibernate.pretty.Printer] - xx.yy.zz.security.Resource{roles=[], url=login.html}
2008-05-20 18:57:35,140 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - executing flush
2008-05-20 18:57:35,140 DEBUG [org.hibernate.jdbc.ConnectionManager] - registering flush begin
2008-05-20 18:57:35,140 DEBUG [org.hibernate.persister.entity.AbstractEntityPersister] - Inserting entity: [xx.yy.zz.security.Resource#login.html]
2008-05-20 18:57:35,140 DEBUG [org.hibernate.jdbc.AbstractBatcher] - about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
2008-05-20 18:57:35,140 DEBUG [org.hibernate.jdbc.ConnectionManager] - opening JDBC connection
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.AbstractBatcher] - preparing statement
2008-05-20 18:57:35,203 DEBUG [org.hibernate.persister.entity.AbstractEntityPersister] - Dehydrating entity: [xx.yy.zz.security.Resource#login.html]
2008-05-20 18:57:35,203 DEBUG [org.hibernate.type.StringType] - binding 'login.html' to parameter: 1
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.AbstractBatcher] - Executing batch size: 1
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.AbstractBatcher] - about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.AbstractBatcher] - closing statement
2008-05-20 18:57:35,203 DEBUG [org.hibernate.persister.collection.AbstractCollectionPersister] - Inserting collection: [xx.yy.zz.security.Resource.roles#login.html]
2008-05-20 18:57:35,203 DEBUG [org.hibernate.persister.collection.AbstractCollectionPersister] - collection was empty
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.ConnectionManager] - registering flush end
2008-05-20 18:57:35,203 DEBUG [org.hibernate.event.def.AbstractFlushingEventListener] - post flush
2008-05-20 18:57:35,203 DEBUG [org.springframework.orm.hibernate3.SessionFactoryUtils] - Closing Hibernate Session
2008-05-20 18:57:35,203 DEBUG [org.hibernate.impl.SessionImpl] - closing session
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.ConnectionManager] - performing cleanup
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.ConnectionManager] - releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.JDBCContext] - after transaction completion
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.ConnectionManager] - transaction completed on session with on_close connection release mode; be sure to close the session to release JDBC resources!
2008-05-20 18:57:35,203 DEBUG [org.hibernate.impl.SessionImpl] - after transaction completion
2008-05-20 18:57:35,203 DEBUG [org.springframework.orm.hibernate3.SessionFactoryUtils] - Opening Hibernate Session
2008-05-20 18:57:35,203 DEBUG [org.hibernate.impl.SessionImpl] - opened session at timestamp: 12113026552
2008-05-20 18:57:35,203 DEBUG [org.springframework.orm.hibernate3.HibernateTemplate] - Eagerly flushing Hibernate session
2008-05-20 18:57:35,203 DEBUG [org.springframework.orm.hibernate3.SessionFactoryUtils] - Closing Hibernate Session
2008-05-20 18:57:35,203 DEBUG [org.hibernate.impl.SessionImpl] - closing session
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.ConnectionManager] - connection already null in cleanup : no action
2008-05-20 18:57:35,203 DEBUG [org.hibernate.transaction.JDBCTransaction] - commit
2008-05-20 18:57:35,203 DEBUG [org.hibernate.impl.SessionImpl] - automatically flushing session
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.JDBCContext] - before transaction completion
2008-05-20 18:57:35,203 DEBUG [org.hibernate.impl.SessionImpl] - before transaction completion
2008-05-20 18:57:35,203 DEBUG [org.hibernate.transaction.JDBCTransaction] - re-enabling autocommit
2008-05-20 18:57:35,203 DEBUG [org.hibernate.transaction.JDBCTransaction] - committed JDBC Connection
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.JDBCContext] - after transaction completion
2008-05-20 18:57:35,203 DEBUG [org.hibernate.jdbc.ConnectionManager] - transaction completed on session with on_close connection release mode; be sure to close the session to release JDBC resources!
2008-05-20 18:57:35,203 DEBUG [org.hibernate.impl.SessionImpl] - after transaction completion
2008-05-20 18:57:35,203 DEBUG [xx.yy.zz.dao.impl.spring.hibernate.GenericHibernateDao] - Object 'Resource login.html with roles : []' saved as Resource with key 'login.html'.

Edit 2 :
En plaçant des points débugs sur chaque ligne de ma méthode save, j'ai remarqué que le contenu de ma collection disparaissait juste après le 'getHibernateTemplate().save(object)' :

Code :

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public PK save(T object) throws DataAccessException {
		logger.debug("Saving %s '%s'.", type.getSimpleName(), object);
		PK key = (PK) getHibernateTemplate().save(object);
		//getHibernateTemplate().flush();
		logger.debug("Object '%s' saved as %s with key '%s'.", object, type.getSimpleName(), key);
		return key;		 
	}

Problème de Mapping : plusieurs à plusieurs

Hibernate Java

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