JSF convertNumber Tag

This tag is used to register the NumberConverter instance on the enclosing component.

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JSF convertNumber Tag

        

This tag is used to register the NumberConverter instance on the enclosing component. This class is responsible to convert String to java.util.Number object and  vice-versa.

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="number" /></font></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>
<h:inputText id="number">
<f:convertNumber currencySymbol="$" type="currency" groupingUsed="#{false}"></f:convertNumber>
</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 does not start with the $ sign then error occurs, like below :

Html Source Code :

<html>
<body>
<form id="form1" method="post" action="/f-tags/pages/convertNumber/convertNumber.jsf" enctype="application/x-www-form-urlencoded">

<table>
<tr><td><font color="#FF0000"></font></td>
<td>&nbsp;</td>
</tr><tr><td>
<input id="form1:number" type="text" name="form1:number" />
</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 some attributes:

currencyCode : In this attribute ISO 4217 currency code is set that will be applied when converting currency values. 
currencySymbol : This sets the currency symbol that will be applied when formatting currency values.
groupingUsed : 
This is the boolean attribute and is used to specify whether the output will contain grouping seperators. Its default value is "true".
integerOnly :
This is the boolean attribute and is used to specify whether only the integer part will be parsed.Its default value is "false".
locale :
This is used to specify the name of the locale for which we have to format the number.
maxFractionDigits :
It is used to specify the maximum no. of digits in the fractional part that will be formated.
maxIntegerDigits :
It is used to specify the maximum no. of digits in the integer part that will be formated.
minFractionDigits :
It is used to specify the minimum no. of digits in the fractional part that will be formated.
minIntegerDigits :
It is used to specify the minimum no. of digits in the integer part that will be formated.
pattern :
This is used to set the formatting pattern.
type :
It is used to specify the type of formatting. Its valid values are "number" "currency" "percentage". Its default value is "number".

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JSF convertNumber Tag

Posted on: June 13, 2007 If you enjoyed this post then why not add us on Google+? Add us to your Circles

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