update « JPA « JSF Q&A

1. How to check exist item in cart and update it to 1 if user add it again?    stackoverflow.com

i have trouble with JPQL statement, i created NameQuery followed:

 @NamedQuery(name = "Cart.findExistCart", query = "SELECT c FROM Cart c WHERE  c.cartPK.userid = :userid AND c.cartPK.itemid = :itemid "),
in stateless ...

2. Help needed with Database update with JSF, JPA 2.0, hibernate    stackoverflow.com

I am using JPA 2.0 and hibernate to save some data in a data base and to update them in a later time. Data is entered through a JSF 2.0 ...

3. How to Cascade Update in JPA    stackoverflow.com

I got stuck trying to make a ManyToMany cascading event to work. I've bean browsing through similar posts, but can't see where my code goes wrong, compared to others posts. I have ...

4. update results of an selectitems    stackoverflow.com

Good evening, I can not change the result of my selectItem knowing that the result is a row in a datatable here is my update method in the bean: public String doUpdate() ...

5. JPA manytomany unidirectional mapping update problem    stackoverflow.com

I have two class Group and Permission ,Group has a list of Permission when i try do add new permission to a group.I set new List of permission and commit ...

6. update hibernate    stackoverflow.com

I can't update my entity. I am using Hibernate and JSF 1.2 with Eclipse. This is my DAO:

public void updateTimesheet(Timesheet timesheet) {
And this is the bean:
public String doUpdate() ...