[jboss-user] [EJB 3.0] - Large data insert generates no line at database

Hello! Im facing a problem and Im completely lost at it. I get the file through JSF component. What I have to do is read the file, line by line instantianting a new Entity that will have this String as an attribute. So, I create a List of the entities created. List list = new ArrayList(); while((line=reader.readLine)!=null) { EntityB b = new EntityB(); b.value = line; list.add(b); } Also, I have another Entity that will receive this List. EntityA a = em.getEntityA(id); a.setBEntities(list); Finally, I try to merge EntityA, as I use cascade, EntityB will also be persisted. em.merge(a); First problem: What is the best way of passing the file or its content to my SessionBean(Stateless) so I can iterate the content and persist it? What Im doing is read the UploadedFile (Adf Component) and write the content to a java.io.File, so I can pass it to the SessionBean but I dont think this is a good thing because these uploaded files are about 50 - 150 thounsand lines. Second problem: How do I persist those thousands of entities objects I created? I call em.persist and none is persisted. I tried to insert through native query and also no line is inserted. However when I try a smaller File with 15 thousand lines, the task is successfully done. Appreciate some help! Thanks! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3977514#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...