The document discusses Seam, an open source Java web framework. It outlines Seam's key features like conversation scope for managing state across HTTP requests and atomic conversations. Seam provides tools for building applications quickly including seam-gen for project generation and validation integration. The document also mentions developer tools like JBoss Developer Studio and possibilities for using Flex as an alternative view layer.
Slides from my talk discussing my experience rebuilding a video player I previously developed in Flash. I gave this talk on March 18th, at the Brisbane Web Design Meetup.
The focus in this deck is the Surf JavaScript API and remoting in particular. Learn how to make remote calls to the Alfresco Repository tier from the Surf presentation tier.
Alfresco’s highly customizable repository can often seem overwhelming. Learn approaches for adding common customizations requests (Extending Javascript API, Content Modeling, Permission Modeling, packaging, etc.) from current and former Alfresco consulting staff. Learn where we often see the most common errors and participate in open Q&A.
Making the HTML5 Video element interactiveCharles Hudson
From Streaming Media West Conference
Huntington Beach, CA
November 2013
C202: HOW TO: Making the HTML5 Video Element Interactive
The HTML5 Video element has now become widely used by browsers and supported in a broad set of websites for streaming video content. With some JavaScript and CSS, we can leverage the HTML video element to create highly interactive experiences for the viewer in both traditional and mobile browsing environments. This hands-on session explores the integration of events with the video timeline, creating positioned hotspots with links and dynamic content, and capturing user input. In addition, the session examines supporting mobile platform browsers along with future opportunities with the HTML5 video tag. Get sample code, ideas, and best practices for making the HTML5 video element an engaging interactive experience for your viewers.
Speaker: Chuck Hudson, Co-Author, HTML5 Developer's Cookbook
Performance as User Experience [An Event Apart Denver 2017]Aaron Gustafson
Design is problem solving. Each and every day, we are tasked with finding ways to reduce the friction our users experience on the Web. That means streamlining flows, reducing cognitive load, and writing more appropriate copy, but user experience goes far beyond the interface. Our users’ experiences begin with their first request to our servers. In this intensely practical session, Aaron will explore the ins and outs of page load performance by showing how he made the web site of the 10K Apart meet its own contest rules, by having a site that was functional and attractive even without JavaScript, and was less than ten kilobytes at initial load. You’ll walk away with a better understanding of the page load process as well as numerous ways you can improve the projects you are working on right now.
Slides from my talk discussing my experience rebuilding a video player I previously developed in Flash. I gave this talk on March 18th, at the Brisbane Web Design Meetup.
The focus in this deck is the Surf JavaScript API and remoting in particular. Learn how to make remote calls to the Alfresco Repository tier from the Surf presentation tier.
Alfresco’s highly customizable repository can often seem overwhelming. Learn approaches for adding common customizations requests (Extending Javascript API, Content Modeling, Permission Modeling, packaging, etc.) from current and former Alfresco consulting staff. Learn where we often see the most common errors and participate in open Q&A.
Making the HTML5 Video element interactiveCharles Hudson
From Streaming Media West Conference
Huntington Beach, CA
November 2013
C202: HOW TO: Making the HTML5 Video Element Interactive
The HTML5 Video element has now become widely used by browsers and supported in a broad set of websites for streaming video content. With some JavaScript and CSS, we can leverage the HTML video element to create highly interactive experiences for the viewer in both traditional and mobile browsing environments. This hands-on session explores the integration of events with the video timeline, creating positioned hotspots with links and dynamic content, and capturing user input. In addition, the session examines supporting mobile platform browsers along with future opportunities with the HTML5 video tag. Get sample code, ideas, and best practices for making the HTML5 video element an engaging interactive experience for your viewers.
Speaker: Chuck Hudson, Co-Author, HTML5 Developer's Cookbook
Performance as User Experience [An Event Apart Denver 2017]Aaron Gustafson
Design is problem solving. Each and every day, we are tasked with finding ways to reduce the friction our users experience on the Web. That means streamlining flows, reducing cognitive load, and writing more appropriate copy, but user experience goes far beyond the interface. Our users’ experiences begin with their first request to our servers. In this intensely practical session, Aaron will explore the ins and outs of page load performance by showing how he made the web site of the 10K Apart meet its own contest rules, by having a site that was functional and attractive even without JavaScript, and was less than ten kilobytes at initial load. You’ll walk away with a better understanding of the page load process as well as numerous ways you can improve the projects you are working on right now.
Realize mais com HTML 5 e CSS 3 - 16 EDTED - RJLeonardo Balter
Slides apresentados no 16 EDTED, edição Rio de Janeiro, em 21 de Maio de 2011.
Aqui não tem vídeos, animações e códigos apresentados, mas tem os links. Logo passo o link completo.
Building Realtime Apps with Ember.js and WebSocketsBen Limmer
This talk discusses how AJAX differs from WebSockets and how the technology can be used to implement rich real-time experiences. It also produces a live demo using EmberJS.
A quick overview of tips, tricks and code snippets for developers using Symfony and all its ecosystem, from Monolog to Doctrine. Learn how to become more productive and discover some rarely used options and features.
This talk will examine the two greatest problems in Ajax development (except for that pesky browser issue): Exactly what that “Asynchronous” word means, what problems it creates, and how they can be effectively managed, next the YUI Browser History object will be examined, finally handing control of Ajax applications back to the user via their familiar back button.
HTML5 is all the rage with the cool kids, and although there’s a lot of focus on the new language, there’s plenty for web app developers with new JavaScript APIs both in the HTML5 spec and separated out as their own W3C specifications. This session will take you through demos and code and show off some of the outright crazy bleeding edge demos that are being produced today using the new JavaScript APIs. But it’s not all pie in the sky – plenty is useful today, some even in Internet Explorer!
HTML5 and the dawn of rich mobile web applicationsJames Pearce
HTML5 and its related technologies are enabling new ways to build beautiful sites and applications for contemporary mobile devices. Native mobile developers can now use web technologies to surmount cross-platform headaches, and desktop web developers can reach mobile users in familiar, app-like ways. This session explores the state of the art in HTML5-based mobile web frameworks, and demonstrates the practical possibilities that this powerful and standards-based approach can bring.
These are the slides from my "HTML5 Real-TIme and Connectivity" presentation at the San Francisco HTML5 User Group (http://sfhtml5.org). The presentation covers:
Web Origin
Cross Document Messaging (PostMessage)
CORS
XHR Level2
WebSocket
Server-Sent Events (EventSource)
SPDY
Realize mais com HTML 5 e CSS 3 - 16 EDTED - RJLeonardo Balter
Slides apresentados no 16 EDTED, edição Rio de Janeiro, em 21 de Maio de 2011.
Aqui não tem vídeos, animações e códigos apresentados, mas tem os links. Logo passo o link completo.
Building Realtime Apps with Ember.js and WebSocketsBen Limmer
This talk discusses how AJAX differs from WebSockets and how the technology can be used to implement rich real-time experiences. It also produces a live demo using EmberJS.
A quick overview of tips, tricks and code snippets for developers using Symfony and all its ecosystem, from Monolog to Doctrine. Learn how to become more productive and discover some rarely used options and features.
This talk will examine the two greatest problems in Ajax development (except for that pesky browser issue): Exactly what that “Asynchronous” word means, what problems it creates, and how they can be effectively managed, next the YUI Browser History object will be examined, finally handing control of Ajax applications back to the user via their familiar back button.
HTML5 is all the rage with the cool kids, and although there’s a lot of focus on the new language, there’s plenty for web app developers with new JavaScript APIs both in the HTML5 spec and separated out as their own W3C specifications. This session will take you through demos and code and show off some of the outright crazy bleeding edge demos that are being produced today using the new JavaScript APIs. But it’s not all pie in the sky – plenty is useful today, some even in Internet Explorer!
HTML5 and the dawn of rich mobile web applicationsJames Pearce
HTML5 and its related technologies are enabling new ways to build beautiful sites and applications for contemporary mobile devices. Native mobile developers can now use web technologies to surmount cross-platform headaches, and desktop web developers can reach mobile users in familiar, app-like ways. This session explores the state of the art in HTML5-based mobile web frameworks, and demonstrates the practical possibilities that this powerful and standards-based approach can bring.
These are the slides from my "HTML5 Real-TIme and Connectivity" presentation at the San Francisco HTML5 User Group (http://sfhtml5.org). The presentation covers:
Web Origin
Cross Document Messaging (PostMessage)
CORS
XHR Level2
WebSocket
Server-Sent Events (EventSource)
SPDY
Google Back To Front: From Gears to App Engine and Beyonddion
I had the privilege of giving a Yahoo! Tech Talk at their HQ in Sunnyvale. I spoke on Gears, App Engine, and other technologies such as the Ajax Libraries API and Doctype.
Those days, when it seemed, that web applications have overthrown standard “cumbersome” client apps, we’ll speak about present and future of consumer oriented desktop applications. This includes, but not restricted to patterns of LOB applications development with WPF, right multimedia support of DirectX bridge and new features, waiting for you in Windows 7. Also we’ll speak about subject oriented programming, will be introduced in NET. 4.0 and how to leverage it even today with the current version of Microsoft framework. tits will be shown during the session, thus restricted to mature audiences
Presented at SXSW '09, this talk covers five best practices from my next book: Load scripts without blocking, Coupling asynchronous scripts, Don't scatter inline scripts, Use iframes sparingly, and Flush the document early.
If you’re tired of running the same commands over and over when setting up your servers, you’ll love Chef. It’s a systems integration framework that allows you to use a Ruby DSL to manage your system configurations, and then easily deploy them across your entire infrastructure, à la Capistrano. Tyler will be breaking down the various components of Chef, and showing some example configurations to get you cooking.
Developing Desktop Applications using HTML and JavascriptJeff Haynie
Presentation given by Jeff Haynie, CEO of Appcelerator on building Desktop Applications using Appcelerator Titanium. http://titaniumapp.com
This presentation was given at the JSConf 2009 in Washington, DC.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
GridMate - End to end testing is a critical piece to ensure quality and avoid...ThomasParaiso2
End to end testing is a critical piece to ensure quality and avoid regressions. In this session, we share our journey building an E2E testing pipeline for GridMate components (LWC and Aura) using Cypress, JSForce, FakerJS…
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
[Muir] Seam 2 in practice
1. Seam
Pete Muir
JBoss, a Division of Red Hat
http://in.relation.to/Bloggers/Pete
pete.muir@jboss.org
2. Road Map
• What is Seam?
• Why should I care about atomic conversations?
• How do I quickly build an application with Seam?
• What tools are available?
• The future
4. Where can I run my app?
WebSphere Web Logic
Tomcat Glassfish
JBoss Enterprise
JBoss Application Server
Application Platform
JBoss SOA Platform
5. !quot;#quot;$%$&&
Seam is contextual
'($)quot;
• Stateful
• store objects for as long as you *#+$
need them
• Seam manages all interactions ,-)($.&#quot;/-)
with the context
• dependencies are injected and !$&&/-)
updated every time a component
is accessed
01&/)$&&!*.-2$&&
344%/2#quot;/-)
6. Seam will store the
The unified component model component in the
conversation context
@Name(quot;discEditorquot;) @Scope(CONVERSATION)
public class DiscEditor {
Inject the
@In EntityManager entityManager; EntityManager
@In Session mailSession;
@In @Out Item disc; Inject a
JavaMail
@In(scope=SESSION) User user; session
Alias the item from the
// Use the components in some way context, and update the
;-)
context if the object
} changes
Specify the
context to inject
from 8
7. Road Map
• What is Seam?
• Why should I care about atomic conversations?
• How do I quickly build an application with Seam?
• What tools are available?
• The future
8. Why do I want an atomic conversation?
• Here’s a common scenario:
• A user has a task to complete which:
• spans multiple pages
• should be able to click cancel or back at any time, no changes made
until the user is finished
• should be able to do the same task in multiple windows
Review and confirm
View a hotel Enter your booking
booking
9. What does Seam provide?
• A conversation scope
• shorter than the session, longer than a request
• demarcated by the application developer
• a conversation per window/tab
Application
Session Session
Conversation Conversation
Request Request
10. What does Seam provide?
• A conversation scoped persistence context keeps entities
attached for the entirety of the user’s task
• guarantees object equality
• allows lazy loading
• An atomic conversation needs to only flush changes at
particular points
• Only flush the persistence context when explicitly instructed to
11. What does Seam provide?
• An atomic conversation needs to only flush changes at
particular points
• Need to use a manual flush mode from Hibernate
@Begin(flushMode=MANUAL)
public void editDisc() {
// Load the item to edit
}
@End
public void saveDisc() {
entityManager.flush();
}
12. How do I manage the system transaction then?
• Seam manages the system transaction for you
• A read-write transaction
• A read only transaction for rendering the page (slightly better
than Open Session in View)
CONVERSATION
EVENT EVENT
APPLY INVOKE RENDER
RESTORE PROCESS UPDATE
REQUEST APPLICATION RESPONSE
VIEW VALIDATIONS MODEL
VALUES
PERSISTENCE CONTEXT
FLUSH
SYSTEM TRANSACTION
13. Road Map
• What is Seam?
• Why should I care about atomic conversations?
• How do I quickly build an application with Seam?
• What tools are available?
• The future
14. Application Framework
• UI orientated controller components Can define in XML or
Java for custom
• EntityHome for CRUD behaviour
<fwk:entity-home entity-class=quot;com.acme.Discquot; name=quot;discHomequot;/>
<s:decorate template=quot;/edit.xhtmlquot;>
<h:inputText value=quot;#{disc.name}quot; required=quot;truequot; />
</s:decorate>
<h:commandButton action=quot;#{discHome.update}quot; value=quot;Savequot; />
<h:commandButton action=quot;#{discHome.remove}quot; value=quot;Deletequot; />
Seam provides JSF Bind directly to
controls for easy the entities, no
decoration of fields need for DTOs
15. Application Framework
• EntityQuery for search
<fwk:entity-query name=quot;discsquot; ejbql=quot;select d from Disc dquot; order=quot;d.namequot;
max-results=quot;5quot;>
<fwk:restrictions>
<value>lower(d.name) like concat(#{exampleDisc.name}, '%'))</value>
</fwk:restrictions>
</fwk:entity-query> Basic queries can be
specified in XML
<component name=quot;exampleDiscquot; class=quot;com.acme.Artistquot; scope=quot;sessionquot; />
A prototype, used
to bind query
parameters
between UI and
query
17. <h:inputText value=quot;#{disc.name}quot; required=quot;truequot;>
<s:validate />
</h:inputText>
Validation
• Need to report validation errors back to the user on the correct
field
• BUT normally need to enforce same constraints at the
persistence layer and the database
@Entity public class Item {
@Id @GeneratedValue Long id;
@Length(min=3, max=1000, message=quot;Must be between 3 & 1000 charsquot;)
String description;
}
18. Road Map
• What is Seam?
• Why should I care about atomic conversations?
• How do I quickly build an application with Seam?
• What tools are available?
• The future
19. Tooling
• seam-gen - command line tool for generating skeleton
project and reverse engineering a database schema
using Seam Application Framework
• JBoss Developer Studio - Eclipse based IDE
• For $99 you get a full installer + JBoss EAP
• Based on the freely available JBoss Tools Eclipse plugins
21. Road Map
• What is Seam?
• Why should I care about atomic conversations?
• How do I quickly build an application with Seam?
• What tools are available?
• The future
22. Flex as a view layer
• A community effort
• Uses Granite Data Services or Blaze Data Services
• Check out a couple of demos at
http://www.rationaldeveloper.com
23. JSF 2
• Easy Component Creation & Templating
• Standardizes Facelets
• No XML needed to create a component
• Built in Ajax support
• Many improvements to JSF
• lifecycle (performance!)
• error handling
• navigation
24. What else?
• Seam 2.1 release candidate in the next week or two
• Friendly URLs
• Identity Management
• ACL style permissions
• Wicket support
• Excel reporting module
• Support for JAX-RS (REST)