open admin - gwt

THE POWER OF PERSPECTIVE

Open Admin - GWTJava Track

Brian PolsterCredera

Copyright © 2011 Credera. All Rights Reserved.

T H E P O W E R O F P E R S P E C T I V E- 2 -


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

www.credera.com



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

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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/

http://www.smartclient.com/smartgwt/showcase/



www.credera.com

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.

www.credera.com



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

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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]

www.credera.com

Twitter: polster

THE POWER OF PERSPECTIVE

Smart GWT & Open Admin

Brian Polster

Credera
