0 Replies Latest reply on Feb 27, 2003 5:36 AM by Morena Corradini

    error storing cmp field that is a java class

    Morena Corradini Newbie

      Hi,
      using jboss 3.2.0RC1 I have found the following problem:

      -- I have an entity bean B with container managed persistency.

      -- It contains a field F of sql type OBJECT (a java class of my application), which is serialized when it is written on the corresponding database table.

      -- I change an integer field I of this class object

      -- Then I call the set method of bean B to store field F back to the database.

      -- The database is not correctly updated because if we retrieve field F the value of I is not changed.

      -- I have solved the problem using a clone of F before calling the set method of the bean B. The database is correctly updated that is if we retrieve F the value of I is changed.

      -- It seems that in the first case the server does not recognize that the field F is changed when one of its fields has been changed and so it does not store it back to the database. With a clone of F, which is a different object, it assumes that F is changed.

      -- In jbosscmp-jdbc file I have specified

      <read-ahead>
      none
      </read-ahead>
      <list-cache-max>0</list-cache-max>
      <fetch-size>0</fetch-size>


      -- In jboss.xml I have specified
      <container-configuration extends="Standard CMP 2.x EntityBean">
      <container-name>EntityBean Container Configuration</container-name>
      <commit-option>C</commit-option>
      </container-configuration>




      Is this a known bug? Is it planned for new jboss 4 version?


      best regards
      morena