I`m using all the jsf 2.2 new namespaces
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:jsf="http://xmlns.jcp.org/jsf"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsp/jstl/core">
But how much do I try to use component selectOneMenu with selectItem I receive this error:
HTTP Status 500 - Elements with namespace
http://xmlns.jcp.org/jsf/html may not have attributes in namespace
http://xmlns.jcp.org/jsf. Namespace http://xmlns.jcp.org/jsf is
intended for otherwise non-JSF-aware markup, such as <input
type="text" jsf:id > It is not valid to have <h:commandButton
jsf:id="button" />.
This is my selectOneMenu:
<h:selectOneMenu class="form-control"
id="selectOlhos" jsf:value="#{corpoController.corpo.corOlhos}">
<f:selectItem itemLabel="Escolha" itemValue=""></f:selectItem>
<f:selectItem itemLabel="Verdes Claros" itemValue="Verdes Claros"></f:selectItem>
<f:selectItem itemLabel="Verdes Escuros" itemValue="Verdes Escuros"></f:selectItem>
<f:selectItem itemLabel="Castanhos Claros" itemValue="Castanhos Claros"></f:selectItem>
<f:selectItem itemLabel="Castanhos Escuros" itemValue="Castanhos Escuros"></f:selectItem>
</h:selectOneMenu>
If I remove this component it works perfectly.
Any help?
Elements with namespace http://xmlns.jcp.org/jsf/html may not have attributes in namespace http://xmlns.jcp.org/jsf. Namespace http://xmlns.jcp.org/jsf is intended for otherwise non-JSF-aware markup, such as <input type="text" jsf:id > It is not valid to have <h:commandButton jsf:id="button" />.
The error literally says that you may not use jsf:xxx attributes in <h:xxx> elements.
I'm not sure how I can explain that more clearly. The error basically says that the jsf:xxx attributes should only be used on plain HTML elements such as <div>. The jsfxxx attribtues are not supported on <h:xxx> elements.
In your specific case, this is thus wrong:
<h:selectOneMenu ... jsf:value="...">
Instead, you must be using:
<h:selectOneMenu ... value="...">
Or, if you actually want to use the <h:selectOneMenu> as a so-called passthrough element, then you should be using plain HTML <select> instead.
<select ... jsf:value="...">
See also:
<a jsf:rendered="#{...}"> is not interpreted as passthrough element
Which XML namespace to use with JSF 2.2
Related
I have the following Facelet Taglib:
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:o="http://omnifaces.org/ui"
xmlns:h="http://java.sun.com/jsf/html">
<o:tagAttribute name="id"/>
<h:panelGroup id="#{id}" layout="block" styleClass="idTest">
#{id}
</h:panelGroup>
</ui:composition>
The taglib.xml looks like this:
<tag>
<tag-name>idTest</tag-name>
<source>resources/myProject/tags/idTest.xhtml</source>
</tag>
And the code, where it is used is simply:
<myProject:idTest/>
How can it be, that the following HTML is being rendered:
<div class="idTest">
j_ido489794984_4bf870cd
</div>
Why does my PanelGroup have no id? The id is generated like it is expected based on the documentation of o:tagAttribute, since the content of the div is rendered. But as id it does not work. Why?
This is indeed confusing.
The documentation literally says:
... it will autogenerate an unique ID in the form of j_ido[tagId] where [tagId] is the <o:tagAttribute> tag's own unique ID.
But the actual behavior is more like so:
... it will override any autogenerated ID into the form of j_ido[tagId] where [tagId] is the <o:tagAttribute> tag's own unique ID.
In other words, when JSF itself needs to render the id attribute of a HTML element, usually because it's required by some internal logic further down in the chain, such as <f:ajax> and friends, and there is no explicit ID specified on the tag like so <x:someTag id="fixedId" />, then JSF will by default autogenerate one in the form of j_id[autoIncrementInteger]. But this will go wrong on tagfiles because the autoIncrementInteger may get bumped further by one on each postback depending on the JSF impl and view state configuration used. The <o:tagAttribute> simply attempts to ensure this way that the autogenerated ID stays the same on each postback.
When you edit your test tagfile to add <f:ajax>,
<h:panelGroup id="#{id}" layout="block" styleClass="idTest">
<f:ajax event="click" />
</h:panelGroup>
then you'll see that the generated <div> has an id, because this is technically required by <f:ajax>.
<div id="j_ido-1512689859_13a7e7e3" class="idTest"
onclick="mojarra.ab(this,event,'click',0,0)">
</div>
Or when you swap <h:panelGroup> for e.g. a <h:form> or whatever component which always requires an ID in the client side,
<h:form id="#{id}" styleClass="idTest">
<ui:insert />
</h:form>
then you'll also see that it's generated.
<form id="j_ido-1512689859_13a7e7e3" name="j_ido-1512689859_13a7e7e3" method="post" action="/test.xhtml" class="idTest" enctype="application/x-www-form-urlencoded">
<input type="hidden" name="j_ido-1512689859_13a7e7e3" value="j_ido-1512689859_13a7e7e3" />
...
</form>
In other words, the feature is working fine, but it was simply not used in your specific case because JSF didn't consider it necessary to generate it.
I've in the meanwhile updated the documentation.
I want to add some iOS specific tag attributes to my login-form. If I have a look on my web page source, the attributes autocorrect, autocapitalize and spellcheck aren't there. What is the reason for this? I am using JSF 2.x.
<h:inputText id="user-name" forceId="true" value="#{login.username}" style="width:120px;"
autocorrect="off" autocapitalize="off" spellcheck="false" />
This is by design. You can only specify attributes which are supported by the JSF component itself (i.e. it's listed in the attribute list in the tag documentation). You can't specify arbitrary additional attributes, they will all be plain ignored.
There are several ways to solve this:
If you're already on JSF 2.2+, simply specify it as passthrough attribute:
<html ... xmlns:a="http://xmlns.jcp.org/jsf/passthrough">
...
<h:inputText ... a:autocorrect="off" />
(note that I'm using xmlns:a instead of xmlns:p to avoid clash with PrimeFaces default namespace)
Or:
<html ... xmlns:f="http://xmlns.jcp.org/jsf/core">
...
<h:inputText ...>
<f:passThroughAttribute name="autocorrect" value="off" />
</h:inputText>
Create a custom renderer. You can find several concrete examples in below answers:
How to let JSF pass through HTML attributes
Using bootstrap related tags inside JSF2 h:inputText component
How to render a custom attribute of <h:outputLink>?
InputText PrimeFaces not applying maxlength
Adding Custom Attributes to Primefaces Autocomplete Component in JSF
I use JSF 2 and Hibernate Validator 5.1 in a web application.
I use the annotations like #Size or #NotNull in my beans to validate automatically my HTML forms.
It works perfectly but I would like to know if there is a way to automatically limit the number of characters typed in an input text (ie set the attribute maxlength in HTML) based on the #Size annotation.
Use maxlength attribute of <h:inputText>
You can also use f:validate -
<h:inputText id="Username" value="#{model.username}"
required="true"
label="UserName" >
<f:validateLength minimum="5" maximum="10" />
</h:inputText>
HTML5 + JSF 2.2+
If you're using HTML5 and JSF 2.2+, specify it as a passthrough attribute.
<html ... xmlns:a="http://xmlns.jcp.org/jsf/passthrough">
<h:inputTextarea value="#{bean.text}" a:maxlength="2000" />
I have following piece of code, i want to render radioButtons and labels for them. Due to the layout renderized by selectOneRadio and selectItem i decided to use plain HTML for the input radioButtons.
<h:panelGrid columns="6">
<ui:repeat value="#{myBean.list}" var="item">
<input id="#{item.innerList[0].id}" type="radio" name="radioItem" value="#{item.innerList[0].id}" />
<h:outputLabel for="#{item.innerList[0].id}" value="#{item.label}" />
</ui:repeat>
</h:panelGrid>
When trying to assign a label for them using outputLabel it renders the attribute for in HTML something like:
j_idt94:0:theidiassigned
The prependId flag in the tag form containing this code is set to false and in the documentation there is no such flag in the attributes of the other containing tags of the outputLabel.
The ui:repeat component is a NamingContainer. It controls the client identifier of its children.
The for attribute on a h:outputLabel will generally look for a component with a matching component identifier or client identifier.
So, for this markup:
<foo:someNamingContainer id="x">
<h:inputText id="foo" />
<h:outputLabel for="foo" />
</foo:someNamingContainer>
...the label would emit the matching, namespaced identifier <label for="...:x:foo".
There is no matching JSF component with a matching id since you are using a straight XHTML <input> element.
Consider just using a XHTML <label> element instead.
Shouldn't this line of code render a inputtext field with the placeholder text "fill me" when using html5?
<h:inputText placeholder="fill me" />
I do not see any placeholder text. I thought everything that was not JSF was passed to the browser for rendering?
I thought everything that was not JSF was passed to the browswer for rendering?
This assumption is thus wrong. Unspecified component attributes are ignored by the JSF renderers.
You have basically the following options to get it to work:
If you're already on JSF 2.2 or newer, set it as a passthrough attribute.
<... xmlns:a="http://xmlns.jcp.org/jsf/passthrough">
<h:inputText a:placeholder="fill me" />
Note that I use a XML namespace prefix of a ("attribute") instead of p as shown in the tutorial, as it would otherwise clash with default XML namespace prefix p of PrimeFaces.
Implement a custom renderer for <h:inputText> wherein you explicitly check and write the attribute.
Implement a custom component which uses the aforementioned custom renderer.
Implement a JS based solution wherein you grab the element from DOM and explicitly set the attribute.
Look for a component library which supports this out the box. PrimeFaces for example has a <p:watermark> for this purpose with nice JS based graceful degradation for browsers which does not support the placeholder attribute on inputs.
See also:
Custom HTML tag attributes are not rendered by JSF
You can achieve it either with placeholder attribute or with p:watermark if using Primefaces and JSF 2.0+ or, when JSF 2.2 available, you can use pt:placeholder attribute.
Primefaces
<p:inputText id="search_input_id" value="#{watermarkBean.keyword}"
required="true" label="Keyword" placeholder="fill me" />
Legacy browser support (Adds JS solution):
<p:inputText id="search_input_id" value="#{watermarkBean.keyword}"
required="true" label="Keyword" />
<p:watermark for="search_input_id" value="fill me" />
JSF 2.2 (without PF)
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:pt="http://xmlns.jcp.org/jsf/passthrough">
<h:head>
</h:head>
<h:body>
<h:inputText value="#{bean.value}" pt:placeholder="fill me"/>
</h:body>
</html>
Which basically generates an HTML 5
<input placeholder="fill me" />
Check out this answer.
With JSF 2.2 you can passthrough unspecified attributes like this:
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://xmlns.jcp.org/jsf/passthrough"
>
<h:inputText p:placeholder="fill me"></h:inputText>
In case you are using RichFaces, starting in version 4.3, you can use the tag "rich:placeholder" for this purpose as shown here. Basically:
<h:inputText id="myInput">
<rich:placeholder value="My placeholder text"></rich:placeholder>
</h:inputText>
Try this
<h:inputText id="name" value="#{login.userId}" class="aux1" />
<h:inputSecret id="password" value="#{login.password}" redisplay="true" class="aux2" autocomplete="off" />
<script>
$('.aux1').attr('placeholder', 'Introducir Usuario');
$('.aux2').attr('placeholder', 'Introducir Contraseña');
</script>
With jQuery, this works right for me.
It's very easy and browser independent code as BaluSc told,
In primefaces, use p:watermark to get the required functionality.
Official Demo is HERE
Use primeface 4.0. Versions below this version do not support the placeholder attribute.
use name space xmlns:pt="http://java.sun.com/jsf/passthrough".
p:inputTextarea id="textAreaValue" pt:placeholder="your text"
don't insert a new line in inputTextArea.
The simplest way to render an input field with a placeholder text is to use the elementary input tag
Example:
<input type="text" placeholder="Fill me" value="#{EL}"/>
Note: you dont have to include any namespaces
<h:head>
</h:head>
<h:body>
<h:inputText value="#{bean.value}" placeholder="fill me"/>
</h:body>
This works right for me, try it!