open admin - gwt
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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 -
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
T H E P O W E R O F P E R S P E C T I V E- 3 -
Copyright © 2011 Credera. All Rights Reserved.
Agenda
What is Open Admin
GWT
– Overview
– Example
Smart-GWT Primer
Build a simple Open Admin Module
www.credera.com
T H E P O W E R O F P E R S P E C T I V E- 4 -
Copyright © 2011 Credera. All Rights Reserved.
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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T H E P O W E R O F P E R S P E C T I V E- 5 -
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www.credera.comDemo – (Broadleaf Commerce Admin)
T H E P O W E R O F P E R S P E C T I V E- 6 -
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www.credera.com
DemoBroadleaf Commerce Admin
T H E P O W E R O F P E R S P E C T I V E- 7 -
Copyright © 2011 Credera. All Rights Reserved.
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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T H E P O W E R O F P E R S P E C T I V E- 8 -
Copyright © 2011 Credera. All Rights Reserved.
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
T H E P O W E R O F P E R S P E C T I V E- 9 -
Copyright © 2011 Credera. All Rights Reserved.
www.credera.com
DemoGWT
T H E P O W E R O F P E R S P E C T I V E- 10 -
Copyright © 2011 Credera. All Rights Reserved.
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
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T H E P O W E R O F P E R S P E C T I V E- 11 -
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www.credera.com
DemoSmart GWT Showcase
T H E P O W E R O F P E R S P E C T I V E- 12 -
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Open Admin Terminology
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Module
Section
Views
T H E P O W E R O F P E R S P E C T I V E- 13 -
Copyright © 2011 Credera. All Rights Reserved.
Module
Section(s)
Open Admin Terminology
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View(s)
List Grid
Presenter
Event Handlers
Model
Order
Button
Form
Events
Customer
Datasource
T H E P O W E R O F P E R S P E C T I V E- 14 -
Copyright © 2011 Credera. All Rights Reserved.
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);
}
T H E P O W E R O F P E R S P E C T I V E- 15 -
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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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T H E P O W E R O F P E R S P E C T I V E- 16 -
Copyright © 2011 Credera. All Rights Reserved.
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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T H E P O W E R O F P E R S P E C T I V E- 17 -
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www.credera.com
DemoSecurity
T H E P O W E R O F P E R S P E C T I V E- 18 -
Copyright © 2011 Credera. All Rights Reserved.
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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T H E P O W E R O F P E R S P E C T I V E- 19 -
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www.credera.com
DemoReview Source for Order and Privilege
T H E P O W E R O F P E R S P E C T I V E- 20 -
Copyright © 2011 Credera. All Rights Reserved.
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.
www.credera.com
T H E P O W E R O F P E R S P E C T I V E- 21 -
Copyright © 2011 Credera. All Rights Reserved.
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
T H E P O W E R O F P E R S P E C T I V E- 22 -
Copyright © 2011 Credera. All Rights Reserved.
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
T H E P O W E R O F P E R S P E C T I V E- 23 -
Copyright © 2011 Credera. All Rights Reserved.
Q&A
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Thank you for attending!
Contact Information:
Brian Polster
bpolster@yahoo.com
www.credera.com
Twitter: polster
THE POWER OF PERSPECTIVE
Smart GWT & Open Admin
Brian Polster
Credera
Copyright © 2011 Credera. All Rights Reserved.
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