Develop Reference

set related values to null after selecting <f:selectItem>

below is my jsf code,
<h:outputText value="SP Id" styleClass="required"/>
<h:selectOneMenu style="padding-left:60px;" class="input" id="spid" required="true" requiredMessage="Select SP Id"
value="#{applicationController.spid}">
<p:ajax listener="#{applicationController.onFromChange()}"
update="fromnames" />
<f:selectItem itemValue="" itemLabel="--Select--" />
<f:selectItems value="#{applicationController.spids}"></f:selectItems>
</h:selectOneMenu>
<h:message for="spid" class="hmsg" />
<h:outputText value="Sp Name" class="left1"/>
<h:inputText class="input" id="fromnames"
value="#{applicationController.spname}" />
<h:message for="fromnames" />
backing bean code is(method),
public void onFromChange() {
if (spid != null && !spid.equals("")) {
int spId = Integer.parseInt(spid);
spname = baseService.getSalesPersonById(spId);
} else {
}
}
//setter-getters
public String getSpname() {
return spname;
}
public void setSpname(String spname) {
this.spname = spname;
}
public List<Integer> getSpids() {
return spids;
}
public void setSpids(List<Integer> spids) {
this.spids = spids;
}
from above code every thing works fine.
problem:if i select f:selectItems values, relating values(spname)
are displaying. after selecting f:selectItem spname should set to null but it's not setting to null, instead of that previous values are displayed.

change jsf code as below,
<h:selectOneMenu style="padding-left:60px;" class="input" id="spid" required="true" requiredMessage="Select SP Id"
value="#{applicationController.spid}">
<p:ajax listener="#{applicationController.onFromChange()}"
update="myForm1" event="change" process="#this"/>
<f:selectItem itemValue="0" itemLabel="--Select--" noSelectionOption="false" />
<f:selectItems value="#{applicationController.spids}"></f:selectItems>
</h:selectOneMenu>
<h:message for="spid" class="hmsg" />
and modify backing bean method as,
public void onFromChange() {
if (spid != null && !spid.equals("")) {
try{
int spId = Integer.parseInt(spid);
spname = baseService.getSalesPersonById(spId);
}
catch(Exception exception){
spname = null;
}
} else {
spname = null;
}
}

selectedItems in selectManyMenu always null - is it up to Converter?

I have one p:selectManyMenu where I can choose multiple items, but I can't manage to get that values, it is always null so I'm not sure if I'm making mistake in processing components or my converter isn't good. Here is XHTML:
<h:form id="form">
<p:selectManyMenu id="advanced" value="#{pickListView.chosenItems}" converter="converterTest"
var="t" filter="true" filterMatchMode="contains" showCheckbox="true" >
<f:selectItems value="#{pickListView.allEquipment}" var="record" itemLabel="#{record.name}" itemValue="#{record}"/>
<p:column style="width:90%">
<h:outputText styleClass="f_text" value="#{t.name} - #{t.price}" />
</p:column>
</p:selectManyMenu>
<p:commandButton id="pojoSubmit" value="Spremi" oncomplete="PF('dlg').show()" actionListener="#{pickListView.saveRecords}" update=":form:table-wrapper" style="margin-top:5px" process="#this" />
<p:dialog header="Selected Values" modal="true" showEffect="fade" widgetVar="dlg" resizable="false">
<p:panelGrid columns="1" id="display" columnClasses="label,output">
<p:dataList value="#{pickListView.chosenItems}" var="t">
<h:outputText value="#{t}" />
</p:dataList>
</p:panelGrid>
</p:dialog>
</h:form>
So, my List<Equipment> chosenItems should contain selected items but is always null. I don't know what should I've done wrong, maybe it's up to converter not managing to return asObject, but I print data from converted object before return, as you can see below, and it's ok, so I'm very confused now...
Here is my Converter:
#FacesConverter(value = "converterTest")
public class ConverterTest implements Converter {
#Override
public Object getAsObject(FacesContext context, UIComponent component, String value) {
if(value != null && value.trim().length() > 0) {
try {
SessionFactory factory = HibernateUtil.getSessionFactory();
Session session = factory.openSession();
Equipment o = (Equipment) session.get(Equipment.class, Integer.valueOf(value));
System.out.println("EQUIPMENT: " + o.getName() + " : " + o.getId());
return (Equipment) session.get(Equipment.class, Integer.valueOf(value));
} catch(NumberFormatException e) {
throw new ConverterException(new FacesMessage(FacesMessage.SEVERITY_ERROR, "Conversion Error", "Not a valid equipment."));
}
}
else {
return null;
}
}
#Override
public String getAsString(FacesContext context, UIComponent component, Object object) {
return object instanceof Equipment ?
((Equipment) object).getId().toString() : "";
}
}
In bean I created two lists, one for all items and one for selected items with their getters and setters. Problem is that chosenItems list is always null.
private List<Equipment> chosenItems;
private List<Equipment> allEquipment;
//getters and setters
Any thoughts? If you need more details, feel free to ask. Thank you in advance!

SelectItemsConverter Omnifaces preselected object value?

I have a problem, well when I save my object to the DB it works fine, but when i want to retrieve it from the DB doesn't work, I'm using selectItemsConverter by Omnifaces
I have my Object "Modelo" which has two other objects inside, which are "Marca" and "Gama"
These are my Java entities (the toString() is for Omnifaces):
Modelo:
private Marca marca;
private Gama gama;
getters and setters...
#Override
public String toString() {
return String.format("%s[codigo=%d]", getClass().getSimpleName(), getCodigo());
}
Marca:
getters and setters...
#Override
public String toString() {
return String.format("%s[codigo=%d]", getClass().getSimpleName(), getCodigo());
}
Gama:
getters and setters...
#Override
public String toString() {
return String.format("%s[codigo=%d]", getClass().getSimpleName(), getCodigo());
}
Well and this is my managedBean
ModeloBean
#ManagedBean
#ViewScoped
public class ModeloBean {
private Modelo modelo = new Modelo();
getters and setters ...
//This is for call the DB to retrieve the value, and works fine, but i cant show the preselected value to the xhtml
public void leer(Modelo mo) throws Exception {
ModeloDAO dao = new ModeloDAO();
try {
this.init();
this.modelo = dao.leer(mo);
} catch (Exception e) {
throw e;
} finally {
dao = null;
}
}
This is my xhtml Page
I have a dialog which I used it for save and update an object
<p:dialog id="dlgDatos" widgetVar="wdlgDatos" modal="true" appendToBody="true" header="#{modeloBean.accion}" draggable="false" resizable="false">
<h:form>
<h:panelGrid columns="2">
<p:outputLabel value="Marca" />
<p:selectOneMenu value="#{modeloBean.modelo.marca}" converter="omnifaces.SelectItemsConverter" filter="true" filterMatchMode="startsWith" required="true">
<f:selectItem itemLabel="Seleccione" itemValue="#{null}" noSelectionOption="true" />
<f:selectItems value="#{marcaBean.lstMarcasVigentes}" var="marca" itemLabel="#{marca.nombre}" itemValue="#{marca}" />
</p:selectOneMenu>
<p:outputLabel value="Gama" />
<p:selectOneMenu value="#{modeloBean.modelo.gama}" converter="omnifaces.SelectItemsConverter" filter="true" filterMatchMode="startsWith" required="true">
<f:selectItem itemLabel="Seleccione" itemValue="#{null}" noSelectionOption="true" />
<f:selectItems value="#{gamaBean.lstGamasVigentes}" var="gama" itemLabel="#{gama.nombre}" itemValue="#{gama}" />
</p:selectOneMenu>
<p:outputLabel for="txtNombre" value="Modelo" />
<p:column>
<p:inputTextarea id="txtNombre" value="#{modeloBean.modelo.nombre}" />
<p:watermark for="txtNombre" value="Para registrar varios modelos, sepárelos por comas (,)" />
</p:column>
<p:outputLabel value="Vigencia" rendered="#{modeloBean.accion eq 'Modificar'}"/>
<p:selectBooleanCheckbox value="#{modeloBean.modelo.vigencia}" rendered="#{modeloBean.accion eq 'Modificar'}"/>
<p:commandButton value="#{modeloBean.accion}" actionListener="#{modeloBean.operar()}" oncomplete="PF('wdlgDatos').hide(); PF('wdtLista').clearFilters();" update=":frmLista:dtLista, :msj"/>
<p:commandButton value="Cancelar" immediate="true" onclick="PF('wdlgDatos').hide();"/>
</h:panelGrid>
</h:form>
</p:dialog>
The selectOneMenu works fine for save, but for update only retrieve me the Strings value and not the preselected value of my comboBoxes
This is the dialog which only retrieve the String value of "105" cause is a String and my boolean value for the checkbox "Vigencia" but not my comboBoxes values. Where am I wrong?

I solved it adding this to my entites (hashCode and equals)
#Override
public int hashCode() {
int hash = 5;
hash = 83 * hash + this.codigo;
return hash;
}
#Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Modelo other = (Modelo) obj;
if (this.codigo != other.codigo) {
return false;
}
return true;
}

How to get the selected row of a filtered extendedDataTable?

In my application (RichFaces 4.1) I have an extendedDataTable, in my backing bean I need to track the selected rows. I achieve this with the following code:
JSF:
<rich:extendedDataTable id="freie"
selectionMode="multipleKeyboardFree"
selection="#{myBean.tableSelection}"
...
<a4j:ajax execute="#this" event="selectionchange"
listener="#{myBean.tableSelection}"
render="indicatorPanel" />
Java:
UIExtendedDataTable dataTable= (UIExtendedDataTable) event.getComponent();
Object originalKey= dataTable.getRowKey();
_tableSelectedEntries.clear();
for (Object selectionKey: _tableSelection) {
dataTable.setRowKey(selectionKey);
if (dataTable.isRowAvailable()) {
_tableSelectedEntries.add((Entry) dataTable.getRowData());
}
}
dataTable.setRowKey(originalKey);
This works fine, as long as the table is not filtered. I use the standard RichFaces way to filter the table:
<rich:column sortBy="#{mitarbeiter.vorname}"
filterValue="#{mitarbeiterFilterBean.firstNameFilter}"
filterExpression="#{fn:containsIgnoreCase(mitarbeiter.vorname, mitarbeiterFilterBean.firstNameFilter)}">
When the table is filtered and I select for instance the first row, I get the rowKey for the first row of the unfiltered table in the backing bean. How can I get the rowData of the selected row when my table is filtered?
I think my code works the same way as in the showcase.

I could solve my problem by making my filter bean SessionScoped. I also don't bind the currently selected rows to my backing bean anymore. I get the selected rows using:
public void tableSelection (AjaxBehaviorEvent event) {
UIExtendedDataTable dataTable= (UIExtendedDataTable) event.getComponent();
for (Object selectionKey: dataTable.getSelection()) {
It could also be achieved using rowKeyVar to get the correct row index.

Maybe you have overlooked something because I tried it and it works.
I copied the source for selectableTable and added the filter method from filterTable
Example usage: To get the selected item/items data just use a get method for selected items list
Source code (xhtml):
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:rich="http://richfaces.org/rich"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:h="http://java.sun.com/jsf/html">
<h:head>
<title>Richfaces Welcome Page</title>
</h:head>
<h:body>
<h:panelGrid columns="2">
<h:form>
<fieldset style="margin-bottom: 10px;">
<legend>
<h:outputText value="Selection Mode " />
</legend>
<h:selectOneRadio value="#{exTableSelect.selectionMode}">
<f:selectItem itemLabel="Single" itemValue="single" />
<f:selectItem itemLabel="Multiple" itemValue="multiple" />
<f:selectItem itemLabel="Multiple Keyboard-free" itemValue="multipleKeyboardFree" />
<a4j:ajax render="table, res" />
</h:selectOneRadio>
</fieldset>
<rich:extendedDataTable value="#{exTableSelect.inventoryItems}" var="car"
selection="#{exTableSelect.selection}" id="table" style="height:300px; width:500px;"
selectionMode="#{exTableSelect.selectionMode}">
<a4j:ajax execute="#form" event="selectionchange" listener="#{exTableSelect.selectionListener}"
render=":res" />
<f:facet name="header">
<h:outputText value="Cars marketplace" />
</f:facet>
<rich:column filterValue="#{exTableSelect.vendorFilter}"
filterExpression="#{fn:containsIgnoreCase(car.vendor, exTableSelect.vendorFilter)}">
<f:facet name="header">
<h:panelGroup>
<h:outputText value="Vendor " />
<h:inputText value="#{exTableSelect.vendorFilter}">
<a4j:ajax render="table" execute="#this" event="change" />
</h:inputText>
</h:panelGroup>
</f:facet>
<h:outputText value="#{car.vendor}" />
</rich:column>
</rich:extendedDataTable>
</h:form>
<a4j:outputPanel id="res">
<rich:panel header="Selected Rows:" rendered="#{not empty exTableSelect.selectionItems}">
<rich:list type="unordered" value="#{exTableSelect.selectionItems}" var="sel">
<h:outputText value="#{sel.vendor} - #{sel.model} - #{sel.price}" />
</rich:list>
</rich:panel>
</a4j:outputPanel>
</h:panelGrid>
</h:body>
</html>
Managed Bean:
public class ExTableSelect {
private String selectionMode = "multiple";
private Collection<Object> selection;
private List<InventoryItem> inventoryItems;
private List<InventoryItem> selectionItems = new ArrayList<InventoryItem>();
private String vendorFilter;
public void selectionListener(AjaxBehaviorEvent event) {
UIExtendedDataTable dataTable = (UIExtendedDataTable) event.getComponent();
Object originalKey = dataTable.getRowKey();
selectionItems.clear();
for (Object selectionKey : selection) {
dataTable.setRowKey(selectionKey);
if (dataTable.isRowAvailable()) {
selectionItems.add((InventoryItem) dataTable.getRowData());
}
}
dataTable.setRowKey(originalKey);
}
public Filter<?> getFilterVendor() {
return new Filter<InventoryItem>() {
public boolean accept(InventoryItem t) {
String vendor = getVendorFilter();
if (vendor == null || vendor.length() == 0 || vendor.equals(t.getVendor())) {
return true;
}
return false;
}
};
}
#PostConstruct
public void addInventory(){
InventoryItem i = new InventoryItem();
i.setVendor("A");
InventoryItem i2 = new InventoryItem();
i2.setVendor("AB");
InventoryItem i3 = new InventoryItem();
i3.setVendor("AC");
InventoryItem i4= new InventoryItem();
i4.setVendor("E");
InventoryItem i5 = new InventoryItem();
i5.setVendor("F");
InventoryItem i6 = new InventoryItem();
i6.setVendor("G");
InventoryItem i7 = new InventoryItem();
i7.setVendor("H");
InventoryItem i8 = new InventoryItem();
i8.setVendor("I");
InventoryItem i9 = new InventoryItem();
i9.setVendor("J");
inventoryItems= new ArrayList<InventoryItem>();
inventoryItems.add(i);
inventoryItems.add(i2);
inventoryItems.add(i3);
inventoryItems.add(i4);
inventoryItems.add(i5);
inventoryItems.add(i6);
inventoryItems.add(i7);
inventoryItems.add(i8);
inventoryItems.add(i9);
}
public Collection<Object> getSelection() {
return selection;
}
public void setSelection(Collection<Object> selection) {
this.selection = selection;
}
public List<InventoryItem> getInventoryItems() {
return inventoryItems;
}
public void setInventoryItems(List<InventoryItem> inventoryItems) {
this.inventoryItems = inventoryItems;
}
public InventoryItem getSelectionItem() {
if (selectionItems == null || selectionItems.isEmpty()) {
return null;
}
return selectionItems.get(0);
}
public List<InventoryItem> getSelectionItems() {
return selectionItems;
}
public void setSelectionItems(List<InventoryItem> selectionItems) {
this.selectionItems = selectionItems;
}
public String getSelectionMode() {
return selectionMode;
}
public void setSelectionMode(String selectionMode) {
this.selectionMode = selectionMode;
}
public void setVendorFilter(String vendorFilter) {
this.vendorFilter = vendorFilter;
}
public String getVendorFilter() {
return vendorFilter;
}
}

JSF converter does not work after validation in PrimeFaces form

I am working on an application using JSF 2.1 and PrimeFaces 3.2, server Tomcat 7. Right now, I am working on form to register new users. The problem is in converter.
I use few standard fields and two of them are passwords. I have custom data type for password, so I want to use converter to convert String data from field to Password variable in a bean. Primefaces forms use AJAX after submit, and there is probably the problem. If I fill in the form completely, without validation errors, everything works fine. But if there is a validaton error and no converter error (I check for the password length in the converter), whole form stops working at all. I have to refresh page to have it working again.
Here are some sources:
Password class:
public class Password {
public static final short MIN_LENGTH = 5;
private String text;
private String hash;
public Password(String text) {
this.text = text;
this.hash = Hasher.sha512(text);
}
/**
* Get password instance with known hash only
* #param hash SHA-512 hash
* #return Password instance
*/
public static Password getFromHash(String hash) {
Password password = new Password(null);
password.hash = hash;
return password;
}
#Override
public int hashCode() {
return hash.hashCode();
}
#Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Password other = (Password) obj;
if ((this.hash == null) ? (other.hash != null) : !this.hash.equals(other.hash)) {
return false;
}
return true;
}
#Override
public String toString() {
return hash;
}
/**
* #return the text
*/
public String getText() {
return text;
}
}
Password converter:
#FacesConverter(forClass = Password.class)
public class PasswordConverter implements Converter {
#Override
public Object getAsObject(FacesContext context, UIComponent component, String value) {
String text = (String) value;
if (text.length() >= Password.MIN_LENGTH) {
return new Password(text);
}
FacesMessage msg = new FacesMessage(Texter.get("forms/forms", "shortPassword").replace("%limit%", String.valueOf(Password.MIN_LENGTH)));
msg.setSeverity(FacesMessage.SEVERITY_ERROR);
throw new ConverterException(msg);
}
#Override
public String getAsString(FacesContext context, UIComponent component, Object value) {
try {
Password password = (Password) value;
return password.getText();
} catch (Exception ex) {
throw new ConverterException(ex);
}
}
}
The form in facelet:
<h:form id="registration">
<p:panelGrid columns="3">
<h:outputLabel value="#{commonTxt.email}:" for="email" />
<p:inputText id="email" value="#{userRegistrationForm.email}" required="true" requiredMessage="#{formsTxt.msgEmpty}">
<f:validator validatorId="email" />
<f:validator validatorId="unique" />
<f:attribute name="entity" value="SystemUser" />
<f:attribute name="field" value="email" />
<f:attribute name="uniqueMessage" value="#{formsTxt.nonUniqueEmail}" />
</p:inputText>
<p:message for="email" />
<h:outputLabel value="#{usersTxt.password}:" for="password" />
<p:password id="password" value="#{userRegistrationForm.password}" binding="#{password}" autocomplete="off" feedback="true" weakLabel="#{formsTxt.passwordWeak}" goodLabel="#{formsTxt.passwordGood}" strongLabel="#{formsTxt.passwordStrong}" promptLabel="#{formsTxt.passwordPrompt}" />
<p:message for="password" />
<h:outputLabel value="#{usersTxt.passwordCheck}:" for="passwordCheck" />
<p:password id="passwordCheck" value="#{userRegistrationForm.passwordCheck}" binding="#{passwordCheckInput}" autocomplete="off">
<f:validator validatorId="match" />
<f:attribute name="matchAgainst" value="#{password}" />
<f:attribute name="matchMessage" value="#{formsTxt.passwordMismatch}" />
</p:password>
<p:message for="passwordCheck" />
<p:column /><p:column /><p:column />
<h:outputLabel value="#{usersTxt.name}:" for="name" />
<p:inputText id="name" value="#{userRegistrationForm.name}" maxlength="255" required="true" requiredMessage="#{formsTxt.msgEmpty}" />
<p:message for="name" />
<f:facet name="footer">
<p:commandButton value="#{usersTxt.register}" action="#{userRegistrationForm.register()}" update="registration" />
</f:facet>
</p:panelGrid>
</h:form>
I won't post code of the bean #{userRegistrationForm}, there are two Passwords properties with getters and setters.
Any help leading to solution of my problem appreciated. Thanks in advance.

Solved! I just used FacesContext.getCurrentInstance().isValidationFailed() to see if the validation failed or not. In case of failure, the converter now returns null (the conversion won't be done), in other case the converter will return proper object. And the form works fine with the conversion working.