My JSF Books/Videos My JSF Tutorials OmniFaces/JSF PPTs
JSF 2.3 Tutorial
JSF Caching Tutorial
JSF Navigation Tutorial
JSF Scopes Tutorial
JSF Page Author Beginner's Guide
OmniFaces 2.3 Tutorial Examples
OmniFaces 2.2 Tutorial Examples
JSF Events Tutorial
OmniFaces Callbacks Usages
JSF State Tutorial
JSF and Design Patterns
JSF 2.3 New Features (2.3-m04)
Introduction to OmniFaces
25+ Reasons to use OmniFaces in JSF
OmniFaces Validators
OmniFaces Converters
JSF Design Patterns
Mastering OmniFaces
Reusable and less-verbose JSF code

My JSF Resources ...

Java EE Guardian
Member of JCG Program
Member MVB DZone
Blog curated on ZEEF
OmniFaces is an utility library for JSF, including PrimeFaces, RichFaces, ICEfaces ...

[OmniFaces Utilities] - Find the right JSF OmniFaces 2 utilities methods/functions

Search on blog

Petition by Java EE Guardians

Twitter

marți, 28 iunie 2016

[OmniFaces utilities (2.4)] Create a copy of the array with items in reversed order


[OmniFaces utilities] The reverseArray() function returns a copy of the array with items in reversed order.

Function:
Usage:

Let's suppose that we have the following simple array defined in a bean:

@Named
@RequestScoped
public class MonthsBean {
   
 private String[] months = new String[] {"January", "February", "March", "April", "May", "June", "July", 
   "August", "September", "October", "November", "December"};

 public String[] getMonths() {
  return months;
 }           
}

Now, we can display the array as it was defined and in reverse order as below:

// as it was defined
<ui:repeat value="#{monthsBean.months}" var="item" varStatus="loop">
 #{loop.index + 1} : #{item} #{!loop.last ? ', ' : ''}
</ui:repeat>

Output:
1 : January , 2 : February , 3 : March , 4 : April , 5 : May , 6 : June , 
7 : July , 8 : August , 9 : September , 10 : October , 11 : November , 12 : December

// reversed (xmlns:of="http://omnifaces.org/functions")
<ui:repeat value="#{of:reverseArray(monthsBean.months)}" var="item" varStatus="loop">
 #{loop.index + 1} : #{item} #{!loop.last ? ', ' : ''}
</ui:repeat>

Output:
1 : December , 2 : November , 3 : October , 4 : September , 5 : August , 6 : July , 
7 : June , 8 : May , 9 : April , 10 : March , 11 : February , 12 : January

Niciun comentariu :

Trimiteți un comentariu

JSF BOOKS COLLECTION

Postări populare

Follow by Email

Visitors Starting 4 September 2015

Locations of Site Visitors