I have tried various different was but cannot seem to set the "selected" variable.
JavaBean:
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Arrays;
import javax.annotation.Resource;
import javax.inject.Named;
import javax.enterprise.context.Dependent;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.sql.DataSource;
#Named(value = "lab3")
#Dependent
#ManagedBean
#SessionScoped
public class Lab3 {
public Lab3() {
}
#Resource (name="jdbc/sample") // This is the JNDI name
private DataSource ds;
private ArrayList<Cars> c = new ArrayList<>();
public ArrayList<Cars> getC() {
// Declare the JDBC objects.
Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
try {
// Establish the connection
connection = ds.getConnection("app", "app");
// Create and execute an SQL statement that returns some data.
String SQL = "SELECT * FROM cars";
statement = connection.createStatement();
resultSet = statement.executeQuery(SQL);
// Iterate through the data in the result set and each column
while (resultSet.next()) {
c.add(new Cars(resultSet.getInt("CARID"),
resultSet.getString("CARMAKE"),
resultSet.getString("CARMODEL"),
resultSet.getInt("CARYEAR")));
}
} // Handle any errors that may have occurred.
catch (SQLException e) {
System.out.println(Arrays.toString(e.getStackTrace()));
}
finally
{
try
{
if (resultSet != null)
resultSet.close();
if (statement != null)
statement.close();
if (connection != null)
connection.close();
}
catch (Exception ex) {
System.out.println ("Exception cleaning up Database objects " +
ex.getMessage());
}
}
return c;
}
public void setC(ArrayList<Cars> c) {
this.c = c;
}
private int selected;
/**
* Get the value of selected
*
* #return the value of selected
*/
public int getSelected() {
return selected;
}
/**
* Set the value of selected
*
* #param selected new value of selected
*/
public void setSelected(int selected) {
this.selected = selected;
}
private ArrayList<Mileage> m = new ArrayList<>();
public ArrayList<Mileage> getM() {
// Declare the JDBC objects.
Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
try {
// Establish the connection
connection = ds.getConnection("app", "app");
// Create and execute an SQL statement that returns some data.
String SQL = "SELECT * FROM mileage where mileagecarid = " + selected;
statement = connection.createStatement();
resultSet = statement.executeQuery(SQL);
// Iterate through the data in the result set and each column
while (resultSet.next()) {
m.add(new Mileage(resultSet.getInt("MILEAGEID"),
resultSet.getInt("MILEAGESTART"),
resultSet.getInt("MILEAGEEND"),
resultSet.getDouble("MILEAGEGASUSED")));
}
} // Handle any errors that may have occurred.
catch (SQLException e) {
System.out.println(Arrays.toString(e.getStackTrace()));
}
finally
{
try
{
if (resultSet != null)
resultSet.close();
if (statement != null)
statement.close();
if (connection != null)
connection.close();
}
catch (Exception ex) {
System.out.println ("Exception cleaning up Database objects " +
ex.getMessage());
}
}
return m;
}
public void setM(ArrayList<Mileage> m) {
this.m = m;
}
public String results() {
return "carresults";
}
}
index.xhtml:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<title>Lab3</title>
</h:head>
<h:body>
<h:outputStylesheet library="css" name="style.css" />
<h:form>
<h:dataTable id="dbresults" value="#{lab3.c}" var="row" >
<h:column>
<f:facet name="header" >Make</f:facet>
<h:outputText value="#{row.carmake}">
</h:outputText>
</h:column>
<h:column>
<f:facet name="header" >Model</f:facet>
<h:outputText value="#{row.carmodel}">
</h:outputText>
</h:column>
<h:column>
<f:facet name="header" >Year</f:facet>
<h:outputText value="#{row.caryear}">
</h:outputText>
</h:column>
<h:column>
<f:facet name="header" >Details</f:facet>
<h:commandButton id="submit" value="Details" action="#{lab3.results}" >
<f:setPropertyActionListener target="#{lab3.selected}" value="#{row.carid}" />
</h:commandButton>
</h:column>
</h:dataTable>
</h:form>
</h:body>
</html>
carresults.xhtml:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<title>Lab3</title>
</h:head>
<h:body>
<h:outputStylesheet library="css" name="style.css" />
<h:outputText value="#{lab3.selected}" ></h:outputText>
<h:form>
<h:dataTable id="dbresults" value="#{lab3.m}" var="row" >
<h:column>
<f:facet name="header" >Start<br />(km)</f:facet>
<h:outputText value="#{row.mileagestart}">
</h:outputText>
</h:column>
<h:column>
<f:facet name="header" >End<br />(km)</f:facet>
<h:outputText value="#{row.mileageend}">
</h:outputText>
</h:column>
<h:column>
<f:facet name="header" >Trip<br />(km)</f:facet>
<h:outputText value="#{row.trip}">
</h:outputText>
</h:column>
<h:column>
<f:facet name="header" >Gas Used<br />(L)</f:facet>
<h:outputText value="#{row.mileagegasused}">
</h:outputText>
</h:column>
<h:column>
<f:facet name="header" >Fuel Economy<br />(L/100km)</f:facet>
<h:outputText value="#{row.litre}">
</h:outputText>
</h:column>
</h:dataTable>
</h:form>
</h:body>
</html>
I have outputted the "selected" variable on the carresults.xhtml page and it always returns zero.
first you need to correct this imports and this annotations:
import javax.inject.Named;
import javax.enterprise.context.Dependent;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
#Named(value = "lab3")
#Dependent
#ManagedBean
#SessionScoped
You don't need Named and ManagedBean, yous should have one or the other. ManagedBean are bean managed by JSF, Named are beans managed by CDI.
Then you need to see what is the scope you want, maybe #Dependent is wrong for what you want. You shouldn't have #SessionScoped and #Dependent at the same time, both are scopes with different lifecycles.
Try deleting #Dependent, it has a smaller scope than #SessionScoped. If you delete #ManagedBean you need to change the import of #SessionScoped, it needs to be:
import javax.enterprise.context.SessionScoped;
This import is for CDI beans, if you choose to only have:
#Named
#SessionScoped
Try as below
<h:commandButton id="submit" value="Details" action="#{lab3.results(row.carid)}"/>
public String results(int selected) {
this.selected = selected;
return "carresults";
}
Related
I had a school project this past semester building a web application with a database for a section of Habitat for Humanity. I was able to connect and write to the database just fine, but I had trouble reading the data that was in the database and placing it into a Primefaces DataTable.
I will add my Java Class to read from the database below, as well as my HTML that has my variables for the DataTable.
If someone can take a look at my code and see if they find any mistakes or have any hints/tips, it would be much appreciated. The class is over now, but I want to be able to try and figure out the rest of the web application to get it fully up and running, instead of just leaving it in the past. Any help would be appreciated!
UserDAO - Java Class:
package dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import model.UserBean;
/**
* #author rnikolich
*/
public class UserDAO {
String driverName = "org.apache.derby.jdbc.ClientDriver";
String connStr = "jdbc:derby://localhost:1527/HabitatDatabase";
public static ArrayList<UserBean> getOwners() {
ArrayList<UserBean> ownerCollection = new ArrayList<>();
Connection DBConn = null;
try {
DBHelper.loadDriver("org.apache.derby.jdbc.ClientDriver");
String myDB = "jdbc:derby://localhost:1527/HabitatDatabase";
DBConn = DBHelper.connect2DB(myDB, "test", "test");
// UserBean usr = new UserBean();
String query = "SELECT * FROM HABITATDATABASE.OWNER";
// With the connection made, create a statement to talk to the DB
server.
// Create a SQL statement to query, retrieve the rows one by one (by
going to the
// columns), and formulate the result string to send back to the
client.
Statement stmt = DBConn.createStatement();
ResultSet rs = stmt.executeQuery(query);
// Timestamp timestamp;
// Vote aVote;
while (rs.next()) {
UserBean own = new UserBean();
own.setOwnerID(rs.getString("OwnerID"));
own.setOwnerName(rs.getString("OwnerName"));
own.setPhone(rs.getString("Phone"));
own.setEmail(rs.getString("Email"));
// or rs.getString("PL_Name");
// timestamp = rs.getTimestamp("vote_TimeStamp");
//
// // make a VoteTally object out of the values
// aVote = new Vote(PL_Name, timestamp);
// add the newly created object to the collection
ownerCollection.add(own);
}
rs.close();
stmt.close();
} catch (Exception e) {
System.err.println("ERROR: Problems with SQL select");
e.printStackTrace();
}
try {
DBConn.close();
} catch (SQLException e) {
System.err.println(e.getMessage());
}
return ownerCollection;
}
}
usersController - Java Class:
package controller;
import dao.UserDAO;
import java.util.ArrayList;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import model.UserBean;
import java.io.Serializable;
#ManagedBean
#SessionScoped
public class UsersController implements Serializable {
private UserBean theModel;
private ArrayList<UserBean> owner;
/**
* *
*/
public ArrayList<UserBean> getOwner() {
UserDAO own = new UserDAO();
owner = UserDAO.getOwners();
return owner;
}
public void setOwner(ArrayList<UserBean> owner) {
this.owner = owner;
}
/**
* Creates a new instance of UsersController
*/
public UsersController() {
theModel = new UserBean();
}
public UserBean getTheModel() {
return theModel;
}
public void setTheModel(UserBean theModel) {
this.theModel = theModel;
}
}
viewOwner - XHTML:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:a="http://xmlns.jcp.org/jsf/passthrough">
<h:head>
<meta http-equiv="Content-type" content="text/html; charset=UTF-8" />
<title>View Owner</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"></link>
</h:head>
<h:body style="background-color: gray">
<h:panelGroup layout="block" styleClass="container">
<h:panelGroup layout="block" styleClass="row centered-form">
<h:panelGroup layout="block" styleClass="col-xs-12 col-sm-8 col-md-10 col-sm-offset-2 col-md-offset-1"
style="background-color: limegreen">
<h:panelGroup layout="block" styleClass="panel panel-default">
<center><h:graphicImage value="#{resource['images:habitat-for-humanity-logo.jpg']}" width="200" height="180"/></center>
<h:panelGroup layout="block" styleClass="panel-heading">
<center><h3 class="panel-title">View Owner</h3></center>
</h:panelGroup>
<br></br>
<h:panelGroup layout="block" styleClass="panel-body">
<h:form id="viewOwnerForm">
<h:panelGroup layout="block" styleClass="form-group">
<p:growl id="msgs" showDetail="true" />
<p:dataTable id="viewOwnerDataTable" value="#{usersController.owner}" var="o" rows="10">
<f:facet name="header">
View Owners Table
</f:facet>
<p:column headerText="OwnerID">
<h:outputText value="#{o.ownerID}" />
</p:column>
<p:column headerText="OwnerName">
<h:outputText value="#{o.ownerName}" />
</p:column>
<p:column headerText="Phone">
<h:outputText value="#{o.phone}" />
</p:column>
<p:column headerText="Email">
<h:outputText value="#{o.email}" />
</p:column>
</p:dataTable>
<br></br>
<h:commandLink>
<p:graphicImage value="#{resource['images:pdf.png']}" width="24"/>
<p:dataExporter type="pdf" target="tbl" fileName="owners"/>
</h:commandLink>
<br></br>
<br></br>
<h:link outcome="home" value="Home" styleClass="btn btn-warning btn-block" id="Home" style="background-color: blue"/>
<h:link outcome="viewHome" value="View Entry Home" styleClass="btn btn-warning btn-block" id="viewHome" style="background-color: blue"/>
</h:panelGroup>
</h:form>
</h:panelGroup>
</h:panelGroup>
</h:panelGroup>
</h:panelGroup>
</h:panelGroup>
</h:body>
</html>
So, i have this piece of code, which basically performs CRUD on a database and displays the results in a <h:dataTable>. The problem is, my code is able to generate an edit action, when I provide a fixed ArrayList. But, if i populate the ArrayList from a database, the rendered property does not provide an editable option from the form. I am able to perform delete functionality, so it's not a matter of the object not being read properly in the action method's parameter. In short, the rendered attribute doesn't work when my data source is a table from a database.
Here's the page:
index.xhtml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
>
<h:head>
</h:head>
<h:body>
<h1>JSF 2 dataTable example</h1>
<h:form>
<h:dataTable value="#{order.orderList}" var="o"
styleClass="order-table"
headerClass="order-table-header"
rowClasses="order-table-odd-row,order-table-even-row"
>
<h:column>
<f:facet name="header">Order No</f:facet>
<h:inputText value="#{o.orderNo}" size="10" rendered="#
{o.editable}" />
<h:outputText value="#{o.orderNo}" rendered="#{not o.editable}" />
</h:column>
<h:column>
<f:facet name="header">Product Name</f:facet>
<h:inputText value="#{o.productName}" size="20" rendered="#
{o.editable}" />
<h:outputText value="#{o.productName}" rendered="#{not o.editable}"
/>
</h:column>
<h:column>
<f:facet name="header">Price</f:facet>
<h:inputText value="#{o.price}" size="10" rendered="#{o.editable}"
/>
<h:outputText value="#{o.price}" rendered="#{not o.editable}" />
</h:column>
<h:column>
<f:facet name="header">Quantity</f:facet>
<h:inputText value="#{o.qty}" size="5" rendered="#{o.editable}"
/>
<h:outputText value="#{o.qty}" rendered="#{not o.editable}" />
</h:column>
<h:column>
<f:facet name="header">Action</f:facet>
<h:commandButton value="Edit" action ="#{order.editAction(o)}">
<f:setPropertyActionListener
target = "#{Orders}" value = "#{o}" />
</h:commandButton>
</h:column>
<h:column>
<f:facet name ="header">Action</f:facet>
<h:commandButton value ="Delete" action="#
{order.delete(o)}"/>
</h:column>
</h:dataTable>
</h:form>
</h:body>
</html>
The orderBean.java:
import java.io.Serializable;
import java.math.BigDecimal;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.Arrays;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
#ManagedBean(name="order")
#RequestScoped
public class orderBean implements Serializable{
private static final long serialVersionUID = 1L;
private static ArrayList<Orders> orderList;
public ArrayList<Orders> getOrderList() {
try{
orderBean.orderList = new ArrayList();
Class.forName("com.mysql.jdbc.Driver");
Connection conn =
DriverManager.getConnection("jdbc:mysql://localhost:3306/orders","root","");
PreparedStatement ps = conn.prepareStatement("Select *
from Orders");
ResultSet rs = ps.executeQuery();
while(rs.next())
{
Orders orders = new
Orders(rs.getString("orderNo"),rs.getString("productName"),
rs.getBigDecimal("price"),rs.getInt("qty"));
orderList.add(orders);
}
}
catch(Exception e)
{
}
return orderList;
}
public void delete(Orders order)
{
try{
orderBean.orderList = new ArrayList();
Class.forName("com.mysql.jdbc.Driver");
Connection conn =
DriverManager.getConnection("jdbc:mysql://localhost:3306/orders","root","");
PreparedStatement ps = conn.prepareStatement("Delete
from orders where orderNo=?");
ps.setString(1,order.orderNo);
int rs = ps.executeUpdate();
}
catch(Exception e)
{
}
}
public void editAction(Orders order) {
order.setEditable(true);
}
public static class Orders{
String orderNo;
String productName;
BigDecimal price;
int qty;
boolean editable;
public Orders(String orderNo, String productName, BigDecimal price, int
qty) {
this.orderNo = orderNo;
this.productName = productName;
this.price = price;
this.qty = qty;
}
public void setOrderNo(String orderNo)
{
this.orderNo = orderNo;
}
public void setProductName(String productName)
{
this.productName = productName;
}
public void setPrice(BigDecimal price)
{
this.price = price;
}
public void setQty(int qty){
this.qty = qty;
}
public String getOrderNo()
{
return this.orderNo;
}
public String getProductName()
{
return this.productName;
}
public BigDecimal getPrice()
{
return this.price;
}
public int getQty()
{
return this.qty;
}
public boolean isEditable() {
return this.editable;
}
public void setEditable(Boolean editable) {
this.editable = editable;
}
//getter and setter methods
}
}
I am facing some problem to select multiple rows of h:dataTable. My code is below:
<h:dataTable value="#{reportBean.lstchalan}" var="chalan" >
<h:column >
<f:facet name="header">
<h:outputText value="Select" />
</f:facet>
<h:selectBooleanCheckbox value="#{reportBean.checked[chalan.issueNo]}" />
</h:column>
...
</h:dataTable>
<h:commandButton value="submit" action="#{reportBean.submit()}" />
and Below is my backing bean:
public class ReportBean {
List<ChalanVo> checkedItems = new ArrayList<ChalanVo>();
private Map<String, Boolean> checked = new HashMap<String, Boolean>();
........
public List<ChalanVo> getCheckedItems() {
return checkedItems;
}
public void setCheckedItems(List<ChalanVo> checkedItems) {
this.checkedItems = checkedItems;
}
public Map<String, Boolean> getChecked() {
return checked;
}
public void setChecked(Map<String, Boolean> checked) {
this.checked = checked;
}
public String submit() {
checkedItems = new ArrayList<ChalanVo>();
for (ChalanVo dataItem : lstchalan) {
if (checked.get(dataItem.getIssueNo())) {
checkedItems.add(dataItem);
checked.remove(dataItem.getIssueNo());
}
}}
}
But I am getting an exception when execute the line for (ChalanVo dataItem : lstchalan) . lstchalan is giving null.Could you please help me to understand where I am doing wrong?
Here is a working, simplified example:
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.faces.view.ViewScoped;
import javax.inject.Named;
#Named("test")
#ViewScoped
public class TestBean implements Serializable{
private static final long serialVersionUID = -1064219566884774973L;
private List<ChalanVo> lstChalans;
private Map<ChalanVo, Boolean> checkedItems = new HashMap<TestBean.ChalanVo, Boolean>();
public TestBean() {
lstChalans = new ArrayList<TestBean.ChalanVo>();
lstChalans.add(new ChalanVo("test1"));
lstChalans.add(new ChalanVo("test2"));
lstChalans.add(new ChalanVo("test3"));
}
public List<ChalanVo> getLstChalans() {
return lstChalans;
}
public void setLstChalans(List<ChalanVo> lstChalans) {
this.lstChalans = lstChalans;
}
public Map<ChalanVo, Boolean> getCheckedItems() {
return checkedItems;
}
public void setCheckedItems(Map<ChalanVo, Boolean> checkedItems) {
this.checkedItems = checkedItems;
}
public void save() {
System.out.println("save");
for (Entry<ChalanVo, Boolean> e : checkedItems.entrySet()) {
if (e.getValue()) {
System.out.println("checked: " + e.getKey().getIssueNo());
}
}
}
public class ChalanVo {
private String issueNo;
public ChalanVo(String issueNo) {
setIssueNo(issueNo);
}
public String getIssueNo() {
return issueNo;
}
public void setIssueNo(String issueNo) {
this.issueNo = issueNo;
}
}
}
With this xhtml:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<h:head />
<h:body>
<h:form>
<h:dataTable value="#{test.lstChalans}" var="chalan">
<h:column>
<f:facet name="header">
<h:outputText value="Select" />
</f:facet>
<h:selectBooleanCheckbox value="#{test.checkedItems[chalan]}" />
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Issue No" />
</f:facet>
<h:outputText value="#{chalan.issueNo}"/>
</h:column>
</h:dataTable>
<h:commandButton action="#{test.save()}" value="Submit" />
</h:form>
</h:body>
</html>
The save() method is able to list the selected items. I think your NullPointerException is unrelated to the checkbox thing. But anyway, you can do the selection like this.
This question already has answers here:
Creating master-detail pages for entities, how to link them and which bean scope to choose
(2 answers)
Closed 7 years ago.
I have a very strange situation here. I have made my application in JSF and it looks just great, however I am not quite sure about following: I want to have a hyperlink so that once I click on my book title I get to a page with all the details regarding that book. My code looks so far:
My class looks like this:
package com.century.rental;
import javax.ejb.Stateless;
import javax.persistence.*;
import java.util.List;
#Stateless
public class GameEJB {
#PersistenceContext(unitName = "PerUni")
private EntityManager em;
public List<Game> findGames() {
TypedQuery<Game> query = em.createNamedQuery("Game.findAll", Game.class);
return query.getResultList();
}
public List<Game> findGamesByTitle(String title) {
TypedQuery<Game> query = em.createNamedQuery("Game.findByTitle", Game.class);
query.setParameter("title", title);
return query.getResultList();
}
public Game find(Long id) {
return em.find(Game.class, id);
}
public Game createGame(Game game) {
em.persist(game);
System.out.print("game stored");
return game;
}
}
My controller class looks like this:
package com.century.rental;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.EJB;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
#ManagedBean
#SessionScoped
public class GameController {
#EJB
private GameEJB gameEJB;
private Game game = new Game();
private String title = new String();
private List<Game> gameList = new ArrayList<Game>();
private List<Game> sgameList = new ArrayList<Game>();
public GameController() {
}
public String doCreateGame() {
gameEJB.createGame(game);
gameList = gameEJB.findGames();
game = new Game();
return "listGames.xhtml";
}
public Game getGame() {
return this.game;
}
public void setGame(Game game) {
this.game = game;
}
public List<Game> getGameList() {
gameList = gameEJB.findGames();
return gameList;
}
public void setGameList(List<Game> gameList) {
this.gameList = gameList;
}
public String searchGames() {
sgameList = gameEJB.findGamesByTitle(title);
return "resultsGames.xhtml";
}
public List<Game> getSgameList() {
return sgameList;
}
public void setSbookList(List<Game> sgameList) {
this.sgameList = sgameList;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
Entity:
package com.century.rental;
import java.util.Date;
import javax.persistence.*;
#Entity
#NamedQueries({
#NamedQuery(name = "Game.findAll", query = "SELECT g FROM Game g"),
#NamedQuery(name = "Game.findByTitle", query = "SELECT g FROM Game g WHERE g.title = :title")
})
public class Game extends Product {
#Basic(optional = false)
#Column(name = "DEVELOPER_STUDIO", nullable = false, length = 100)
private String developerStudio;
#Basic(optional = false)
#Column(name = "PLATFORM", nullable = false, length = 100)
private String platform;
public Game() {
}
public Game(String title, String description, String rating, Date releaseDate, String developerStudio, String platform) {
super(title, description, rating, releaseDate);
this.developerStudio = developerStudio;
this.platform = platform;
}
public String getDeveloperStudio() {
return developerStudio;
}
public void setDeveloperStudio(String developerStudio) {
this.developerStudio = developerStudio;
}
public String getPlatform() {
return platform;
}
public void setPlatform(String platform) {
this.platform = platform;
}
}
My HTML code looks like this:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<title>List of All Available Games in Database</title>
<link rel="stylesheet" type="text/css" href="css/style.css" />
</h:head>
<h:body>
<f:view>
<h:form>
<h1><h:outputText value="List of All Available Games in Database"/></h1>
<h:dataTable value="#{gameController.gameList}" var="item" border="1">
<h:column>
<f:facet name="header">
<h:outputText value="Id"/>
</f:facet>
<h:outputText value="#{item.id}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Title"/>
</f:facet>
<h:outputText value="#{item.title}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Description"/>
</f:facet>
<h:outputText value="#{item.description}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Rating"/>
</f:facet>
<h:outputText value="#{item.rating}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Release Date"/>
</f:facet>
<h:outputText value="#{item.releaseDate}">
<f:convertDateTime pattern="dd/MM/yyyy" />
</h:outputText>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Developer Studio"/>
</f:facet>
<h:outputText value="#{item.developerStudio}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Platform"/>
</f:facet>
<h:outputText value="#{item.platform}"/>
</h:column>
</h:dataTable>
</h:form>
</f:view>
<br /><br />
Add New -OR- Go to Main Page
</h:body>
</html>
Please, help me I am not quite sure how can I make a hyperlink to a specific book from a list of books( as shown in the code )
Thanks.
P.S.
My specific page specificGame, which is supposed to get values from a game that was clicked in listGames page.
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<title>List specific Game in Database</title>
<link rel="stylesheet" type="text/css" href="css/style.css" />
</h:head>
<h:body>
<f:view>
<h:form>
<h1><h:outputText value="List a specific Game in Database"/></h1>
<h:dataTable value="#{GameController.sGameList}" var="item" border="1">
<h:column>
<f:facet name="header">
<h:outputText value="Name"/>
</f:facet>
<h:outputText value="#{item.name}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Title"/>
</f:facet>
<h:outputText value="#{item.title}"/>
</h:column
</h:dataTable>
</h:form>
</f:view>
<br /><br />
Add New -OR- Go to Main Page
</h:body>
</html>
Now when I click on a title from the list of games on page list Games I would be redirected to specific Game page which is supposed to look like this: http://i.stack.imgur.com/OHmdp.png
populated by all the values from the particular game.
Try to change the column title in listGames.xhtml to :
<h:column>
<f:facet name="header">
<h:outputText value="Title"/>
</f:facet>
<h:commandLink value="#{item.title}" action="#{gameController.searchGames(item.title)}" />
</h:column>
Then, adapt the action method in the backing bean to :
public String searchGames(String tit) {
sgameList = gameEJB.findGamesByTitle(tit);
return "resultsGames.xhtml";
}
I have a table showing list from a bean. When I click one of the rows, I want to view details from another bean list what would I write to value to second detail datatable list ?
Let say I have a bean of list students datatable containing name, surname and numbers, when I click a row, on the second datatable there is a bean list of student's address, city and country
Now I can System.out.print the adress detail of student when I click to row in student table but I can't show it on datatable
I'm asking how I can take the values to a datatable, what will be the value in datatable?
Thanks for your help
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head></h:head>
<h:body>
<f:view>
<h:form id="form">
<p:dataTable id="users" var="user" value="#{userOS.osList}"
paginator="true" rows="10" rowKey="#{user.kisiid}"
selection="#{userOS.selectedOS}" selectionMode="single">
<f:facet name="header">
Kullanıcı detaylarını görmek için view butonuna tıklayınız
</f:facet>
<p:ajax event="rowSelect" listener="#{userOS.onRowSelect}" update=":form:display"
oncomplete="userDialog" />
<p:column headerText="Student No" sortBy="ogrencino"
filterBy="ogrencino" id="ogrencino">
<h:outputText value="#{user.ogrencino}" />
<f:param name="kid" value="#{userOS.osList.rowIndex}" />
</p:column>
<p:column headerText="Name" sortBy="ad" filterBy="ad" id="ad">
<h:outputText value="#{user.ad}" />
</p:column>
<p:column headerText="Surname" sortBy="soyad" filterBy="soyad"
id="soyad">
<h:outputText value="#{user.soyad}" />
</p:column>
<p:column headerText="Faculty" sortBy="altbirim.ad"
filterBy="altbirim.ad" id="altbirim">
<h:outputText value="#{user.altbirim.ad}" />
</p:column>
<p:column headerText="Department" sortBy="bolum.ad"
filterBy="bolum.ad" id="bolum">
<h:outputText value="#{user.bolum.ad}" />
</p:column>
<p:column headerText="Status" sortBy="ogrencidurum.ad"
filterBy="ogrencidurum.ad" id="ogrencidurum">
<h:outputText value="#{user.ogrencidurum.ad}" />
</p:column>
<f:facet name="footer">
</f:facet>
</p:dataTable>
<p:panel id="dialog" header="User Detail" widgetVar="userDialog">
<h:panelGrid id="panelgrid" columns="2" cellpadding="4">
<p:dataTable id="display" var="adres" value="#{userOS.adresList}">
<p:column headerText="Adres Tipi">
<h:outputText value="#{adres.AddressType}" />
</p:column>
<p:column headerText="Adres">
<h:outputText value="#{adres.Address}" />
</p:column>
<p:column headerText="İl">
<h:outputText value="#{adres.City}" />
</p:column>
<p:column headerText="Ülke">
<h:outputText value="#{adres.Country}" />
</p:column>
</p:dataTable>
</h:panelGrid>
</p:panel>
</h:form>
</f:view>
</h:body>
</html>
And KisiInfoProcess.java code :
package com.revir.process;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.primefaces.event.SelectEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.revir.managed.bean.AddressBean;
import com.revir.managed.bean.OgrenimSureciBean;
import com.revir.domain.Adres;
import com.revir.domain.AdresDAO;
import com.revir.domain.Kisi;
import com.revir.domain.KisiDAO;
import com.revir.domain.Kisiadresi;
import com.revir.domain.Ogrenimsureci;
import com.revir.domain.OgrenimsureciDAO;
import com.revir.domain.Ulke;
import com.revir.process.KisiInfoProcess;
#ManagedBean(name = "userOS")
#SessionScoped
public class KisiInfoProcess implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private static final Logger log = LoggerFactory
.getLogger(KisiInfoProcess.class);
private List<OgrenimSureciBean> osList;
private List<AddressBean> adresList;
private List<AddressBean> adresListesi;
public List<AddressBean> getAdresListesi() {
return adresListesi;
}
public void setAdresListesi(List<AddressBean> adresListesi) {
this.adresListesi = adresListesi;
}
private OgrenimSureciBean selectedOS;
private AddressBean selectedAdres;
public OgrenimSureciBean getSelectedOS() {
return selectedOS;
}
public void setSelectedOS(OgrenimSureciBean selectedOS) {
this.selectedOS = selectedOS;
}
public AddressBean getSelectedAdres() {
return selectedAdres;
}
public void setSelectedAdres(AddressBean selectedAdres) {
this.selectedAdres = selectedAdres;
}
public List<OgrenimSureciBean> getOsList() {
OgrenimsureciDAO ogrenimsureciDAO = new OgrenimsureciDAO();
List<OgrenimSureciBean> osList = new ArrayList<OgrenimSureciBean>();
for (Iterator i = ogrenimsureciDAO.findByMezunOgrenciler((short) 8)
.iterator(); i.hasNext();) {
Ogrenimsureci og = (Ogrenimsureci) i.next();
OgrenimSureciBean osBean = new OgrenimSureciBean();
osBean.setBolum(og.getBolum());
osBean.setAd(og.getKisiByKisiid().getAd());
osBean.setSoyad(og.getKisiByKisiid().getSoyad());
osBean.setAltbirim(og.getAltbirim());
osBean.setOgrencino(og.getOgrencino());
osBean.setKisiid(og.getKisiByKisiid().getKisiid());
osBean.setOgrencidurum(og.getOgrencidurum());
osList.add(osBean);
System.out.println("osBean : " + osBean.toString());
}
return osList;
}
public void setOsList(List<OgrenimSureciBean> osList) {
this.osList = osList;
}
public void onRowSelect(SelectEvent event) {
System.out.println("On Row Select Metodu çalıştı");
try {
getAdresList();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public List<AddressBean> getAdresList() throws Exception {
if (getSelectedOS() != null) {
log.debug("PersonalInfoProcess - getAddressInfo - Start");
List<AddressBean> adresList = new ArrayList<AddressBean>();
KisiDAO kisiDAO = new KisiDAO();
AdresDAO adresDAO = new AdresDAO();
Long kisiid = getSelectedOS().getKisiid();
System.out.println("kisiid :" + kisiid);
Kisi kisi = kisiDAO.findById(kisiid);
for (Iterator i = kisi.getKisiadresis().iterator(); i.hasNext();) {
Kisiadresi kisiAdresi = (Kisiadresi) i.next();
System.out.println("i :" + i);
Adres tmpAdres = adresDAO.findById(kisiAdresi.getId()
.getAdresid());
if (tmpAdres != null) {
AddressBean address = new AddressBean(kisiid);
if (tmpAdres.getAdresturu() == null) {
address.setAddressType(null);
} else {
address.setAddressType(tmpAdres.getAdresturu().getAd());
System.out.println("Adres Türü:" +tmpAdres.getAdresturu().getAd());
}
address.setAddress(tmpAdres.getAdres());
System.out.println("Şehir:" +tmpAdres.getAdres());
if (tmpAdres.getIl() == null) {
address.setCity(null);
} else {
address.setCity(tmpAdres.getIl().getAd());
System.out.println("Şehir:" +tmpAdres.getIl().getAd());
}
if (tmpAdres.getUlke() == null) {
address.setCountry(null);
} else {
address.setCountry(tmpAdres.getUlke().getAd());
System.out.println("Ülke:" +tmpAdres.getUlke().getAd());
}
adresList.add(address);
System.out.println("adres" + address);
System.out.println("adreslist" + adresList);
}
log.debug("PersonalInfoProcess - getAddressInfo - End / Returning");
}
}
return adresList;
}
public void setAdresList(List<AddressBean> adresList) {
this.adresList = adresList;
}
}