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THE POWER OF PERSPECTIVE

Open Admin - GWTJava Track

Brian Polster

Credera

Copyright © 2011 Credera. All Rights Reserved.

THE POWER OF PERSPECTIVE- 2 -Copyright © 2011 Credera.

All Rights Reserved.

About the Speaker

Brian Polster

· Lead the Java Practice at Credera for past 5½ years

· Former Architect at American Airlines (www.aa.com)

· Founder of Broadleaf Commerce (eCommerce framework based on open source technologies)

www.credera.com



Agenda· What is Open Admin

· GWT

– Overview

– Example

· Smart-GWT Primer

· Build a simple Open Admin Module

www.credera.com



What is Open Admin?

· Component / Outcome of Broadleaf Commerce

– Built in Security

– Pluggable Module Metaphor

– Sandbox capability

– Release 1 Target – September

· Based on common open source components

– GWT

– Smart GWT

– Spring Security

– JPA / Hibernate

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www.credera.comDemo – (Broadleaf Commerce Admin)



www.credera.com

DemoBroadleaf Commerce Admin



GWT (Google Web Toolkit)

Key Benefits (according to me ….)

· Emits JavaScript from Java

· Allows debugging of JavaScript using breakpoints in Java code

· RPC and GWT-RPC

· Shipped with component library that isextensible through JSNI

www.credera.com



www.credera.com

Google has good tutorials on GWT.

http://code.google.com/webtoolkit/gettingstarted.html

The sample provides a good background on the following:

· Google Compiler Configuration file (e.g. *.gwt.xml)

· HTML start page

· Entry Point Class(es)

· GWT Debugger

· GWT-RPC

GWT – Sample Application



www.credera.com

DemoGWT



Smart GWT

· GWT wrapper over the Smart Client JavaScript library

· Provides hooks for data source interaction

· LPGL license for mostwidgets – company sellssupport and advancedfeatures

http://www.smartclient.com/product/smartgwt.jsp

www.credera.com

http://www.smartclient.com/smartgwt/showcase/%23main

http://www.smartclient.com/smartgwt/showcase/%23main



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DemoSmart GWT Showcase



Open Admin Terminology

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Module

Section

Views



Module

Section(s)

Open Admin Terminology

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View(s)

List Grid

Presenter

Event Handlers

Model

Order

Button

Form

Events

Customer

Datasource



Simple Example - Step 1 of 3: Building The View

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public class SimpleView extends HLayout implements Instantiable, Display { public SimpleView() { setHeight100(); setWidth100(); }

public void build(DataSource entityDataSource) { new IButton("Click Me"); button.addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { SC.say("Hello, World from smartGWT"); } });

addMember(button); }



Simple Example - Step 2 of 3: Creating the Open Admin Module

public class SimpleModule extends AbstractModule {

public void onModuleLoad() { setModuleTitle("Tech Fest Module"); List<String> roles= new ArrayList<String>(); roles.add("ROLE_TECH_FEST_USER”); roles.add("ROLE_ADMIN");

setSection("Simple Example”, "viewKey”, SimpleView.class.getName(), roles);

registerModule();

}

}

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Simple Example - Step 3: Configuring the GWT Complier

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE module PUBLIC "-//Google Inc. <...> <module> <inherits name="com.google.gwt.user.User" /> <inherits name="org.broadleafcommerce.openadmin.openadmin" />

<entry-point class="techfest.client.simple.SimpleModule" /> <source path="client" />

</module>

Also need to add reference to the project *.gwt.xml file.

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www.credera.com

DemoSecurity



Dynamic Form Generation

· The list grids and entry forms are generated automatically from the JPA and OpenAdmin configuration.

@Column(name = "MODEL”) // JPA @AdminPresentation // Open Admin (friendlyName="Product Model", order=4, group="Product Description", prominent=true)

· Open Admin field configuration can be done via an XML file or inline in the java class.

· Other attributes include: readOnly, securityLevel, and validation

www.credera.com



www.credera.com

DemoReview Source for Order and Privilege



Recap the Steps for Adding a JPA Data Driven Section

· Create the view by extend BasicListDetailView

– Setting the title fields

– Set the view handle (prefix)

· Create the presenter by extending DynamicEntityPresenter

– Specify the grid fields (optional)

– Tie-in the associated DataSourceFactory

· Create the DataSourceFactory by extending SimpleDataSourceFactory

– Set the class name for your JPA configured class

· Add a new section to your module that references the view and presenter.

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Summary

Benefits of Open Admin

– Helper classes to bridge SmartGWT DataSources and JPA

– Simple “Out of Box” view and presenter classes that make building a rich UI easy

– Configurable security based on Spring Security

Announcement …

– BLC Content Management Content targeting, structured content,

templated page development

www.credera.com



· Our Company

– Full-service business and technology consulting firm

– Provide business and technology solutions that offer measurable value to our clients

– Deliver value by leveraging our people’s accumulated industry and management experience with their deep technical expertise

– Established in 1999

– Offices in Dallas, Austin, Denver

· Our Services

– Management Consulting

– Technology Solutions

– Business Intelligence

· Our People

– Credera’s professionals possess a unique combination of deep technical expertise with extensive business backgrounds

– Backgrounds include business, technology, and strategy management consulting with some of the most well-known and respected consulting firms in the world

– Have served many influential corporations in a variety of industries over the past 20 years

· Sample Clients

Credera is a Business and Technology Consulting Firm that Focuses on Leveraging Proven Technologies to Enable our Clients Business Strategy

www.credera.com



Q&A

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Thank you for attending!

Contact Information:Brian Polster

[email protected]

Twitter: polster

THE POWER OF PERSPECTIVE

Smart GWT & Open Admin

Brian PolsterCredera

Copyright © 2011 Credera. All Rights Reserved.