Scott Stephens

For those interested of Event handling in DJBrowser, I found the solution for my Problem.

1.) I needed to create a JWebBrowser object that I could use in the TripHandler class. In order to do this I needed to modify the BPanel like this:
public class BPanel { public JWebBrowser browser; public Integer distance; public BPanel() { browser =(JWebBrowser) createContent(); } public static JComponent createContent() { JPanel webBrowserPanel = new JPanel(new BorderLayout()); final JTextField receivedCommandTextField = new JTextField(); // get the dimensions of the windows and apply Toolkit tk = Toolkit.getDefaultToolkit(); Dimension dimension = tk.getScreenSize(); int screenWidth = dimension.width; int screenHeight = dimension.height; webBrowserPanel.setPreferredSize(new Dimension(dimension.width/2,dimension.height)); final JWebBrowser webBrowser = new JWebBrowser(); webBrowser.navigate("F:\\workspace\\Transportliste\\src\\View\\distances.html"); webBrowserPanel.add(webBrowser, BorderLayout.CENTER); //return webBrowserPanel; return (JWebBrowser) webBrowser; }
I removed the WebBrowserlistener that was initially in the BPanel class stuck in a nested anonymous class that I couldn't access. Because I now have an object in my TripHandler class:
// Browser addon as Panel BPanel newBrowser = new BPanel(); newBrowser.browser.addWebBrowserListener(this);

I could add the listener and get the "destination" that was sent from the browser via JavaScript:
@Override public void commandReceived(WebBrowserCommandEvent arg0) { // when data come from input Browser final JTextField receivedCommandTextField = new JTextField(); if (arg0 != null) { if (arg0.getCommand()=="kilometers") System.out.print("Kilometer is: " ); String command = arg0.getCommand(); Object[] parameters = arg0.getParameters(); receivedCommandTextField.setText(command + (parameters.length > 0? " " + Arrays.toString(parameters): "")); if("kilometers".equals(command)) { String data = (String)parameters[0]; data = data.replaceAll("\\D+",""); }} }
the last step was to extend my TripHandler class with a WebBrowserListener provided from DJBrowser
public class TripHandler extends JPanel implements ActionListener, KeyListener, PropertyChangeListener, ListSelectionListener, WebBrowserListener {

My project is a taxi management module that manages planned trips that need the distance from a point A.
I guess I wasn't clear enough about the invoking class(class that implements an instance of the DJBrowser. I am trying to follow an MVC Approach and have a view class TripHandler that sets up the UI:
package handler; public class TripHandler{ private distance; ... public setUpUI(){ ... // Browser addon as Panel JPanel browser = new JPanel(); browser = (JPanel) util.BPanel.createContent(); browser.addPropertyChangeListener(this); wrapper.add(browser); } }
That means Class TripHandler implements the management view that invokes the BPanel Class that Returns the object browser. Because the Listener is in the static method util.BPanel.createContent(), with the inner class having access to the distance returned from the javascript, I don't know how to get the value of "distance" from the nested inner class from BPanel and assign it to member distance in the TripHandler class . It's probably really simple. Just don't know how to do it. I hope that makes it more understandable. Thanks for the replies.

I am using the DJWebbrowser in a Java Swing Application that I am working on
// Browser addon as Panel JPanel browser = new JPanel(); browser = (JPanel) util.BPanel.createContent(); wrapper.add(browser);

and am sending data from a Google Map API , Distance Matrix Query with following code
function callback(response, status) { if (status != google.maps.DistanceMatrixStatus.OK) { alert('Error was: ' + status); } else { var origins = response.originAddresses; var destinations = response.destinationAddresses; var outputDiv = document.getElementById('outputDiv'); outputDiv.innerHTML = ''; deleteOverlays(); for (var i = 0; i < origins.length; i++) { var results = response.rows[i].elements; addMarker(origins[i], false); for (var j = 0; j < results.length; j++) { addMarker(destinations[j], true); outputDiv.innerHTML += origins[i] + ' to ' + destinations[j] + ': ' + results[j].[code=java]distance.text +'<br>'; [color=blue]sendNSCommand('kilometers', results[0].distance.text);[/color] } } } }

The DJBrowser Class that invokes the browser
browser = (JPanel) util.BPanel.createContent();


has a Browser Listener Implementation public commandReceived(
public static JComponent createContent() { JPanel webBrowserPanel = new JPanel(new BorderLayout()); final JTextField receivedCommandTextField = new JTextField(); // get the dimensions of the windows and apply Toolkit tk = Toolkit.getDefaultToolkit(); Dimension dimension = tk.getScreenSize(); int screenWidth = dimension.width; int screenHeight = dimension.height; webBrowserPanel.setPreferredSize(new Dimension(dimension.width/2,dimension.height)); final JWebBrowser webBrowser = new JWebBrowser(); webBrowser.addWebBrowserListener(new WebBrowserAdapter() { @Override [color=blue] public void commandReceived(WebBrowserCommandEvent e)[/color][color=blue] [/color] { String distance; String old_distance; String command = e.getCommand(); Object[] parameters = e.getParameters(); receivedCommandTextField.setText(command + (parameters.length > 0? " " + Arrays.toString(parameters): "")); if("kilometers".equals(command)) { String data = (String)parameters[0]; data = data.replaceAll("\\D+",""); if(JOptionPane.showConfirmDialog(webBrowser, "Do you want to store \"" + data + "\" in a database?\n(Not for real of course!)", "Data received from the web browser", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) { // Data should be used here } } } });
I haven't found a way to access a class property from the class that invoked the web browser, because the above WebBrowserAdapter is in an anonymous Inner Class.´I would like to have the distance that is sent from the Javascript to the application be passed on to the class member "distance" that in the invoking class. I Need some help.

I have a view that is supposed to show data from different tables. For this, I have separated the business logic into different backing beans, sdHandler and urlaubHandler,which then connect to the DAO-Layer. The first iinitialization of the urlaubHandler initializes a parameter "sd" via faces-config.xml, but after the first loading of the view the component "showUrlaub" has no way of knowing for which person it should load the corresponding data- when <h:commandButton styleClass="calNavBtn" value="Edit"
action="#{sdHandler.editStammdaten}"> is called

What is the best for backing beans to share a "global" property? Is it possible or even suggested?

<?xml version="1.0" encoding="ISO-8859-1" ?> <!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:t="http://myfaces.apache.org/tomahawk" xmlns:ui="http://java.sun.com/jsf/facelets"> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /> <title>Insert title here</title> </head> <body> <ui:composition template="/template.xhtml"> <ui:define name="header"> <h:outputText value="Personal Verwaltungssystem"></h:outputText> </ui:define> <ui:define name="navigation"> <h:form> <t:panelNavigation id="nav" styleClass="navigation" separatorClass="navseparator" itemClass="navitem" activeItemClass="navitem_active" openItemClass="navitem_open"> <t:commandNavigation id="nav_1" value="PERSO" action="LOGOUT" /> <t:commandNavigation id="nav_2" value="logout" action="LOGOUT" /> </t:panelNavigation> </h:form> </ui:define> <ui:define name="content"> <h:form> <h:panelGrid columns="2" border="1" styleClass="standardTable"> <h:panelGrid> <h:dataTable value="#{sdHandler.sdGroupList}" var="p" rowClasses="list-row-even,list-row-odd" binding="#{sdHandler.sdDataTable}"> <h:column> <!-- column header --> <f:facet name="header"> <h:outputText value="Name"></h:outputText> </f:facet> <!-- row record --> #{p.name} </h:column> <h:column> <!-- column header --> <f:facet name="header"> <h:outputText value="Vorname"></h:outputText> </f:facet> <!-- row record --> #{p.vorname} </h:column> <h:column> <!-- column header --> <f:facet name="header"> <h:outputText value="Strasse"></h:outputText> </f:facet> <!-- row record --> #{p.strasse} </h:column> <h:column> <h:commandButton styleClass="calNavBtn" value="Edit" action="#{sdHandler.editStammdaten}"> <f:param name="action" value="show" /> </h:commandButton> </h:column> </h:dataTable> </h:panelGrid> <h:panelGrid> Name: <h:inputText value="#{sdHandler.sd.name}" /> Vorname: <h:inputText value="#{sdHandler.sd.vorname}" /> Geburtsdatum: <t:inputDate id="gbdat" type="date" popupCalendar="false" value="#{sdHandler.sd.gebDat}" required="true" /> <h:message for="gbdat"></h:message> Telefon: <h:inputText value="#{sdHandler.sd.telefon}" /> Strasse: <h:inputText value="#{sdHandler.sd.strasse}" /> PLZ: <h:inputText value="#{sdHandler.sd.plz}" /> Ort: <h:inputText value="#{sdHandler.sd.ort}" /> <br /> <h:commandButton action="#{sdHandler.setStammdaten}" value="Speichern"></h:commandButton> </h:panelGrid> </h:panelGrid> </h:form> <h:panelGrid > <h:dataTable id="showUrlaub" value="#{urlaubHandler.urlaubList}" rowClasses="list-row-even,list-row-odd" var="u"> <h:column> <!-- column header --> <f:facet name="header"> von </f:facet> <!-- row record --> <h:outputText value="#{u.uvon}" style="width=25"> <f:convertDateTime pattern="MM-dd-yyyy" /> </h:outputText> </h:column> <h:column> <!-- column header --> <f:facet name="header"> bis </f:facet> <!-- row record --> <h:outputText value="#{u.ubis}" style="width='25'"> <f:convertDateTime pattern="MM-d-yyyy" /> </h:outputText> </h:column> <h:column> <!-- column header --> <f:facet name="header"> <h:outputText value="status"></h:outputText> </f:facet> <!-- row record --> #{u.ustatus} </h:column> </h:dataTable> </h:panelGrid> </ui:define> <ui:define name="footer"> Augenklinik Rendsburg 2012 </ui:define> </ui:composition> </body> </html>

Before I read the replies, I tried an example line from Bernd Müller's Java Server Faces "ein Arbeitsbuch für die Praxis"
It is more the direction that Tim suggested, keeping the business code and not using an action listener and looks like this:
public String checkUrlaub() { int validierung= KalUtil.isValid(u.getUvon(), u.getUbis()); if (validierung >0 && isFree()) { u.setPid(sd.getId()); u.setUid(allUrlaubList.size()+1); u.setUstatus(0); DAOUrlaub.saveUrlaub(u); } else { FacesMessage fm = new FacesMessage("Datum entweder nicht verfügbar oder Reihenfolge falsch"); FacesContext.getCurrentInstance().addMessage("", fm); } return "checked"; }

I'm still working on this. This function checks the dates to make sure some conditions are met. It is the action of the code already posted above. When I do the validation here, I can access the fields Uvon and Ubis. If I try to validate the input with the validator I can only access the Object value from the validator signature. But I need to compare it to see if the dates are valid and these belong together. Using the function saveUrlaub all my needs are met except being able to create a validation message!
How can I throw an exception that lands in the <h:message></h:message> tags?

public String saveUrlaub() { int validierung= KalUtil.isValid(u.getUvon(), u.getUbis()); if (validierung >0 && isFree()) { u.setPid(sd.getId()); u.setUstatus(0); DAOUrlaub.saveUrlaub(u); } return "checked"; }

The following jsf code has a start date and end date for applying for vacation.
the commandButton has an action="#{urlaubHandler.saveUrlaub}" to submit these dates.

I need to validate the dates that

1. start is before the end date
2. the dates have work days >0
3. the employee has enough vacation days on their account
4. there are no overlapping days with other vacation

My question is : Can I do all of the above checking in the function "saveUrlaub" If yes, can I throw a validator exception to aquire error messaging for the different error cases without using a bound validator in the jsf page?

<h:panelGrid styleClass="tbl_unit" columns="2"> von:<t:inputDate id="id" popupCalendar="true" value="#{urlaubHandler.u.uvon}" required="true" /><h:message for="von"></h:message> bis:<t:inputDate id="bis" popupCalendar="true" value="#{urlaubHandler.u.ubis}" required="true" /><h:message for="bis"></h:message> <h:commandButton action="#{urlaubHandler.saveUrlaub}" /> </h:panelGrid>

For anyone looking for an example how to compare dates, the following code now does it:
private static boolean isFerien(Date dt) { // TODO Auto-generated method stub int year=0; boolean bresult=false; Date result=new Date(); SimpleDateFormat df = new SimpleDateFormat("yyyy-dd-MM"); Calendar c1 = GregorianCalendar.getInstance(); Calendar c2 = GregorianCalendar.getInstance(); c1.setTime(dt); year= c1.get(c1.YEAR); for (int i = 0; i < ferienTage.length; i++) { try { result = df.parse(year+ "-"+ ferienTage[i]); c2.setTime(result); c2.set(Calendar.YEAR, year); } catch (Exception ex){ } if (c1.compareTo(c2) == 0){ bresult= true; break; } } return bresult; }

I just finished a page that implements editing data and inserting data using the same <h:form> and the same backing bean. I did use the "RESET" combined with an action="#{MyClass.resetData}" where I nulled out each of the field values. This seems to work fine, a little tedious, if the form is populated with much data, but so far effective. I'll keep this topic in my watches, to see if there is a trick, but it sounds like after the form is populated and a Request has been sent, and the backing bean updated, the "memory" of the browser will always return what was last sent.

I realize this isnt strictly a JSF Problem, but it is in a backing bean that is called by my JSF App.
My problem is that when I compare :

if (dt == result)

dt has the value 2012-11-02 and result has Fri Nov 02 20:29:23 CET 2012 even though I formatted it with SimpleDateFormat.
the static variable ferienTage is an array of holidays that is supposed to be valid for any year. The function compares the parameter dt to the array and returns
true/false if it is a holiday.
Why is there a difference. Both Date objects have been instansiated and initialized.

Maybe someone can help here.
public class Kalendar { private static final String[] ferienTage = { "01-01", "03-10", "24-12", "25-12", "26-12" }; private static boolean isFerien(Date dt) { // TODO Auto-generated method stub int year=0; Date result = new Date(); boolean bresult=false; Calendar c = GregorianCalendar.getInstance(); c.setTime(dt); year= c.get(c.YEAR); SimpleDateFormat df = new SimpleDateFormat("yyyy-dd-MM"); for (int i = 0; i < ferienTage.length; i++) { try { result = df.parse(ferienTage[i]); c.setTime(result); c.set(Calendar.YEAR, year); result= c.getTime(); df.format(result); } catch (Exception ex){ } if (dt == result) { bresult= true; break; } } return bresult; }

I am having a problem that only one of the <h:commandButton> tags fire when I have two <h:form> tags on the page. Is it allowed to have more than one <h:form> tag on the page. The Html from two forms is rendered, however the action="backing bean" isn't fired. I could use some help here.
Using JSF 2.0 with MyFaces and hibernate 3.2

<?xml version="1.0" encoding="ISO-8859-1" ?> <!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:t="http://myfaces.apache.org/tomahawk" xmlns:ui="http://java.sun.com/jsf/facelets"> <h:head></h:head> <h:body> <h:outputStylesheet library="css" name="styles.css" target="head" /> <ui:composition template="/template.xhtml"> <ui:define name="header"> Administration </ui:define> <ui:define name="navigation"> <h:form> <t:panelNavigation id="nav" styleClass="navigation" separatorClass="navseparator" itemClass="navitem" activeItemClass="navitem_active" openItemClass="navitem_open"> <t:commandNavigation id="nav_1" value="logout" action="LOGOUT" /> </t:panelNavigation> </h:form> </ui:define> <ui:define name="content"> <h:panelGrid columns="2" border="0"> <f:facet name="header"> <h:outputText value="Personal(aktiv)" /> </f:facet> <h:form> <h:dataTable value="#{sdHandler.sdList}" var="p" rowClasses="list-row-even,list-row-odd" binding="#{sdHandler.sdDataTable}"> <h:column> <!-- column header --> <f:facet name="header"> <h:outputText value="Name"></h:outputText> </f:facet> <!-- row record --> #{p.name} </h:column> <h:column> <!-- column header --> <f:facet name="header"> <h:outputText value="Vorname"></h:outputText> </f:facet> <!-- row record --> #{p.vorname} </h:column> <h:column> <!-- column header --> <f:facet name="header"> <h:outputText value="Strasse"></h:outputText> </f:facet> <!-- row record --> #{p.strasse} </h:column> <h:column> <h:commandButton styleClass="calNavBtn" value="Edit" action="#{sdHandler.editStammdaten}" /> </h:column> </h:dataTable> </h:form> <h:panelGroup> <h:form> <h:panelGrid columns="3"> ID: <h:inputText value="#{sdHandler.sd.id}" readonly="true" /> <h:inputHidden></h:inputHidden> Name: <h:inputText id="name" value="#{sdHandler.sd.name}" required="true" /> <h:message for="name"></h:message> <br /> Vorname: <h:inputText id="vorname" value="#{sdHandler.sd.vorname}" required="true" /> <h:message for="vorname"></h:message> <br /> Geburtsdatum: <t:inputDate id="gbdat" type="date" popupCalendar="false" value="#{sdHandler.sd.gebDat}" required="false" /> <h:inputHidden></h:inputHidden> <br /> Telefon: <h:inputText value="#{sdHandler.sd.telefon}" /> <h:inputHidden></h:inputHidden> <br /> Strasse: <h:inputText value="#{sdHandler.sd.strasse}" /> <h:inputHidden></h:inputHidden> <br /> PLZ: <h:inputText value="#{sdHandler.sd.plz}" /> <h:inputHidden></h:inputHidden> Ort: <h:inputText value="#{sdHandler.sd.ort}" /> <h:inputHidden></h:inputHidden> Urlaubstage: <h:inputText value="#{sdHandler.sd.urlaubstage}" /> <h:inputHidden></h:inputHidden> <h:commandButton id="sendSD" value="Speichern" action="#{sdHandler.setStammdaten}" /> </h:panelGrid> </h:form> </h:panelGroup> </h:panelGrid> </ui:define> </ui:composition> </h:body> </html>

I got the Derby database on another table to use identity and it works fine for a session.save.

I now have both session.save and session saveOrUpdate working!! However with a table that is not identity. For now a good step. I have in my mapping file class="assigned" and assign the id after getting a list and finding the size +1
I am still working on many of the concepts, so it takes a while to sort through some of the details- when class="assigned", the id has to be set before you can use an EL-Expression in a JSF Page. Otherwise, it says Null pointer.

package model; import java.util.Date; public class Stammdaten { private Integer id; private String name; private String vorname; private Date gebDat; private String strasse; private String plz; private String ort; private String telefon; private String passwort; public String getPasswort() { return passwort; } public void setPasswort(String passwort) { this.passwort = passwort; } public String getStrasse() { return strasse; } public void setStrasse(String strasse) { this.strasse = strasse; } public String getPlz() { return plz; } public void setPlz(String plz) { this.plz = plz; } public String getOrt() { return ort; } public void setOrt(String ort) { this.ort = ort; } public String getTelefon() { return telefon; } public void setTelefon(String telefon) { this.telefon = telefon; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setId(Integer id) { this.id = id; } public void setName(String name) { this.name = name; } public String getVorname() { return vorname; } public void setVorname(String vorname) { this.vorname = vorname; } public Date getGebDat() { return gebDat; } public void setGebDat(Date gebDat) { this.gebDat = gebDat; } }

here the error msg that is displayed in the browser:
org.hibernate.PropertyAccessException: Exception occurred inside getter of model.Stammdaten.id
org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:172)
org.hibernate.engine.UnsavedValueFactory.getUnsavedIdentifierValue(UnsavedValueFactory.java:67)
org.hibernate.tuple.PropertyFactory.buildIdentifierProperty(PropertyFactory.java:67)
org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:147)
org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:457)
org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:131)
org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:84)
org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:261)
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1327)
org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
dao.HibernateUtil.<clinit>(HibernateUtil.java:12)
dao.DAOStammdaten.saveStammdaten(DAOStammdaten.java:74)

The above mentioned is the error that comes when I use identity.
I don't set the id field at all. The data is in a managed bean. The variable sd is instansiated at class loading. id is set to null.
The DAOStammdaten.save() function is called from JSF per EL

<h:commandButton id="sendSD" value="Speichern" action="#{sdHandler.saveStammdaten}

sdHandler.saveStammdaten just calls the DAO function keeping the business logic in it's layer.
public String saveStammdaten(){ DAOStammdaten.saveStammdaten(this.sd); return "SAVED"; }