JSF converter Tag
This tag is used to register the converter instance on
the enclosing component. Many times it is required to convert the input to the
appropriate type. In this case this tag can be useful. It takes one required
attribute "converterId". In this attribute we specify the name of
backing bean class which implements Converter interface. You have to maintain the faces-config file where
converter-id and converter-class is specified within the converter
element.
Code Description :
<%@ page contentType="text/html" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<f:view>
<html>
<body>
<h:form id="form1">
<table>
<tr>
<td><font color="#FF0000"><h:message for="name" /></font></td>
<td> </td>
</tr>
<tr>
<td>
<h:inputText id="name">
<f:converter converterId="javax.faces.Short"/>
</h:inputText>
</td>
<td><h:commandButton value="Submit" /></td>
</tr>
</table>
</h:form>
</body>
</html>
</f:view> |
Rendered Output :
This is the first output that comes in front of the user.
When user inputs wrong input that can not be converted
to the appropriate type then the conversion error occurs, like below :
Html Source Code :
<html>
<body>
<form id="form1" method="post" action="/f-tags/pages/converter/converter.jsf"
enctype="application/x-www-form-urlencoded">
<table>
<tr><td><font color="#FF0000"></font></td>
<td> </td>
</tr><tr><td>
<input id="form1:name" type="text" name="form1:name" />
</td>
<td><input type="submit" name="form1:_id1" value="Submit" /></td>
</tr>
</table>
<input type="hidden" name="form1" value="form1" /></form>
</body>
</html> |
This tag contains one attribute :
converterId : This is the required attribute and is used to specify
the ID of the converter class which is used in the conversion process (in the case of custom
conversion).
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