0 Replies Latest reply on Nov 23, 2006 3:27 AM by Alex

    Pessimistic Locking strange behaviour with read-only pattern

    Alex Newbie

      Hi!

      Everytime I use a read-only pattern(get*) on my EntityBean, the pessimistic locking stops working (for other methods also)! It behaves just like optimistic locking. I experimented for a few days, I read the forums and the JBoss 4.0 Book, there is nothing on this behaviour.

      some of the xdoclet tags (the ones that count):

      /**
       * Autogenerated EJB implementation class for SystemKontoEB
       *
       *
       *
       * @ejb.bean
       * generate = "true"
       * name = "SystemKontoEB"
       * type = "CMP"
       * cmp-version = "2.x"
       * view-type = "local"
       * local-jndi-name = "ejb/SystemKontoEB"
       * reentrant = "true"
       *
       * @jboss.container-configuration
       * name = "Standard CMP 2.x EntityBean Pessimistic"
       *
       * @jboss.cache-invalidation
       * value = "true"
       *
       * @jboss.cache-invalidation-config
       * invalidation-group-name = "SystemKontoEBGroup"
       *
       * @jboss.tuned-updates
       *
       * @jboss.entity-command
       * name = "no-select-before-insert"
       *
       * @jboss.read-ahead
       * strategy = "on-load"
       * page-size = "20"
       *
       * @ejb.util
       * generate = "physical"
       *
       * @ejb.transaction
       * type = "Required"
       *
       * @ejb.persistence
       * table-name = "SYSTEMKONTO"
       *
       * @jboss.method-attributes
       * pattern = "get*"
       * read-only = "true"
       */
      


      "Standard CMP 2.x EntityBean Pessimistic" is the same as "Standard CMP 2.x EntityBean" only with the modifications below. I use my own invalidation methods, if you wonder why i do this.

      <locking-policy>org.jboss.ejb.plugins.lock.QueuedPessimisticEJBLock</locking-policy>
      


      Any ideas why the read-only method tag (get*) would interfere with the pessimistic locking of other methods which don't match the get* pattern?

      -> JBoss 4.0.2