Question

@Named(value = "viewtable")
@ManagedBean
@ViewScoped
public final class viewtable implements Serializable {

    ArrayList<viewbean> dlist = new ArrayList<viewbean>();
    ArrayList<Master> mlist = new ArrayList<Master>();


    public ArrayList<viewbean> getDlist() {
        return dlist;
    }

    public viewtable()  {
        get();
    }

    public void get() {
        try
        {
            InitialContext ic = new InitialContext();
            DataSource ds = (DataSource) ic.lookup("jdbc/mydsn");
            Connection con = ds.getConnection();

            PreparedStatement ps=con.prepareStatement("select * from master");
            ResultSet rs=ps.executeQuery();

            while(rs.next())
            {
                dlist.add(new viewbean(rs.getString(1), rs.getString(2),rs.getString(3),rs.getString(4),rs.getDate(5), rs.getString(6), rs.getBytes(7), rs.getString(8),rs.getString(9),rs.getString(10),rs.getString(11),rs.getDate(12),rs.getDate(13),rs.getString(14),rs.getString(15), rs.getString(16)));
            }
        }catch(Exception ex)
        {
            System.out.println("Conncetion pool db error-> "+ex);
        }
    }

    public void onEdit(RowEditEvent event) {
    }
}

The above code didn’t update the data in the database in the get() method I’ve done any error and how to connect with the database using PrimeFaces.
I used a managed bean for save details from the database as a list called mlist.

JSF:

<h:form id="dtform">
    <p:growl showDetail="true" id="mess"/>
    <p:dataTable id="dt1" scrollable="true" scrollWidth="700" var="mas"  value="#{viewtable.dlist}" editable="true">
        <f:facet name="header">
            Edit Here
        </f:facet>
        <p:column headerText="Regno" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText  value="#{mas.regno}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.regno}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Rollno" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.rollno}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.rollno}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Firstname" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.fname}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.fname}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Lastname" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.lname}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.lname}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="D.O.B" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.dob}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.dob}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Address" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.address}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.address}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Avatar" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.avatar}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.avatar}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Email" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.email}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.email}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Phno" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.phno}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.phno}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Dept" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.dept}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.dept}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Year" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.year}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.year}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Start" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.inidate}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.inidate}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="End" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.enddate}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.enddate}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Remarks" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.remarks}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.remarks}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Delivery" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.delivery}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.delivery}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Message" width="100">
            <p:cellEditor>
                <f:facet name="output">
                    <h:outputText value="#{mas.messdelivery}"/>
                </f:facet>
                <f:facet name="input">
                    <p:inputText value="#{mas.messdelivery}"/>
                </f:facet>
            </p:cellEditor>
        </p:column>
        <p:column headerText="Options" width="100">
            <p:rowEditor/>
        </p:column>
        <p:ajax event="rowEdit" listener="#{viewtable.onEdit}" update=":dtform:mess"/>
    </p:dataTable>
</h:form>

Answer 1

I assume you have configured hibernate in your environment, and mapped your database to an entity class. you can update the records accordingly.

You can access the rows and update the records like :

    public void onEdit(RowEditEvent event) {  
            YourHibernateEntity yourEntity = (YourHibernateEntity ) event.getObject());  
            SessionFactory sessFact = new AnnotationConfiguration().configure().buildSessionFactory();    
        Session sess = sessFact.openSession();
        Transaction  tran = sess.beginTransaction();
        sess.update(yourEntity );
        tran.commit();      

        }