Book Image

PrimeFaces Cookbook

Book Image

PrimeFaces Cookbook

Overview of this book

PrimeFaces is the de facto standard in the Java web development. PrimeFaces is a lightweight library with one jar, zero-configuration, and no required dependencies. You just need to download PrimeFaces, add the primefaces-{version}.jar to your classpath and import the namespace to get started. This cookbook provides a head start by covering all the knowledge needed for working with PrimeFaces components in the real world. "PrimeFaces Cookbook" covers over 100 effective recipes for PrimeFaces 3.x which is a leading component suite to boost JSF applications. The book's range is wide‚Äí from AJAX basics, theming, and input components to advanced usage of datatable, menus, drag & drop, and charts. It also includes creating custom components and PrimeFaces Extensions.You will start with the basic concepts such as installing PrimeFaces, configuring it, and writing a first simple page. You will learn PrimeFaces' theming concept and common inputs and selects components. After that more advanced components and use cases will be discussed. The topics covered are grouping content with panels, data iteration components, endless menu variations, working with files and images, using drag & drop, creating charts, and maps. The last chapters describe solutions for frequent, advanced scenarios and give answers on how to write custom components based on PrimeFaces and also show the community-driven open source project PrimeFaces Extension in action.
Table of Contents (17 chapters)
PrimeFaces Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Integrating drag-and-drop with data iteration components


The Droppable component has a special integration with the data iteration components extending javax.faces.component.UIData. Such PrimeFaces components are DataTable, DataGrid, DataList, Carousel, Galleria, Ring, and Sheet. The component tag p:droppable defines a datasource option as an ID of the data iteration component that needs to be connected with Droppable.

In this recipe, we will introduce a DataGrid component containing some imaginary documents and make these documents draggable in order to drop them onto a recycle bin. The DataGrid component will act as a data source for the droppable Recycle Bin.

How to do it...

For the purpose of better understanding the developed code, pictures come first.

The first screenshot shows what happens when we start to drag a document. The Recycle Bin area gets highlighted.

What it looks like after dropping three documents onto the Recycle Bin is reproduced in the following screenshot:

Available...