[jboss-user] [JBoss Seam] - Cache level

Hi, I'm not sure whether this is the right place to post this question, but I'm not sure either if the problem I have comes from Hibernate or from Seam Conversations. I am using seam 1.2.1.GA and hibernate 3.2. In my application, data is updated quite frequently by many concurrent clients. Scenario is very simple. Two pages: one to show items, one to edit an item's properties. My item entity is defined as such: @Entity | @Name("item") | @Table(name="item") | public class MItem implements Serializable { | | @ManyToMany | @org.hibernate.annotations.Fetch(FetchMode.SUBSELECT) | @Cascade({ | CascadeType.SAVE_UPDATE, | CascadeType.MERGE, | CascadeType.PERSIST}) | @JoinTable( | name = "item_prop", | joinColumns = {@JoinColumn(name = "ip_item")}, | inverseJoinColumns = {@JoinColumn(name = "ip_prop")}) | private Set<MProperty> properties = new HashSet<MProperty>(); | | [...] | } and the property class: | @Entity | @Name("property") | @Table(name="property") | public class MProperty implements Serializable { | | @ManyToMany(mappedBy = "properties") | private Set<MItem>items = new HashSet<MItem>(); | | @Column(name = "pr_value") | private String value; | | [...] | } The conversation spans from the item list page to the edit item (join) and is never ended (not even after saving the changes to the item properties). If from Client A I update one of the properties of an item I can see my changes in the item list (even without ending the conversation upon persisting) but if from Client B I query the DB I can not see changes done to that property until I logout and login again (or simply when the http session is ended). On the contrary, when I create a new item I can see changes on both clients. I was not sure weather this was related to the second-level cache of hibernate, which I now disabled but this didn't give any significant results. The only solution I found so far is to execute an em.refresh(item) on each item of the list before showing it, which works but has a terrible effect on performances! Annotating queries with hints does not work either, does somebody have a good solution for this problem? Thank you! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4065071#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...