JSF - Facelets Tags

Facelets JSF Tags

JSF provides special tags to create common layout for a web application called facelets tags. These tags gives flexibility to manage common parts of a multiple pages at one place.
For these tags you need to use the following namespaces of URI in html node.

<html 
   xmlns="http://www.w3.org/1999/xhtml" 
   xmlns:ui="http://java.sun.com/jsf/facelets" 
>

Following are important Facelets Tags in JSF 2.0:

S.N.	Tag & Description
1	Templates We'll demonstrate how to use templates using following tags <ui:insert> <ui:define> <ui:include> <ui:composition>
2	Parameters We'll demonstrate how to pass parameters to a template file using following tag <ui:param>
3	Custom We'll demonstrate how to create custom tags.
4	Remove We'll demonstrate capability to remove JSF code from generated HTML page.

JSF - Convertor Tags

JSF Convertor Tags

JSF provides inbuilt convertors to convert its UI component's data to object used in a managed bean and vice versa.For example, these tags can convert a text into date object and can validate the format of input as well.
For these tags you need to use the following namespaces of URI in html node.

<html 
   xmlns="http://www.w3.org/1999/xhtml" 
   xmlns:f="http://java.sun.com/jsf/core"  
>

Following are important Convertor Tags in JSF 2.0:

S.N.

Tag & Description

f:convertNumber
Converts a String into a Number of desired format

f:convertDateTime
Converts a String into a Date of desired format

Custom Convertor
Creating a custom convertor

JSF Validator Tags

JSF provides inbuilt validators to validate its UI components. These tags can validates length of field, type of input which can be a custom object.
For these tags you need to use the following namespaces of URI in html node.

<html 
   xmlns="http://www.w3.org/1999/xhtml" 
   xmlns:f="http://java.sun.com/jsf/core"  
>

Following are important Validator Tags in JSF 2.0:

S.N.

Tag & Description

f:validateLength
Validates length of a string

f:validateLongRange
Validates range of numeric value

f:validateDoubleRange
Validates range of float value

f:validateRegex
Validate JSF component with a given regular expression.

Custom Validator
Creating a custom validator

JSF DataTable

JSF provides a rich control named DataTable to render and format html tables.

DataTable can iterate over collection or array of values to display data.
DataTable provides attributes to modify its data in easy way.

HTML Header

<html 
   xmlns="http://www.w3.org/1999/xhtml"   
   xmlns:h="http://java.sun.com/jsf/html">
</html>

Following are important DataTable operations in JSF 2.0:

S.N.	Tag & Description
1	Display DataTable How to display a datatable
2	Add data How to add a new row in a datatable
3	Edit data How to edit a row in a datatable
4	Delete data How to delete a row in datatable
5	Using DataModel Use DataModel to display row numbers in a datatable

InternAtInfosys

Saturday, 26 March 2016

JSF-3