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Blog post: http://codely.tv/screencasts/codigo-acoplado-framework-microservicios-ddd
YouTube video (Spanish): https://www.youtube.com/watch?v=o0w-jYun6AU
Twitter: https://twitter.com/CodelyTV
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This presentation is Part 22 of the EWD 3 Training Course. It examines how to traverse Documents and navigate within them using DocumentNode methods and properties
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From framework coupled code to #microservices through #DDD /by @codelytvCodelyTV
Slides from the talk about our evolution as developers. We start talking about the first spaghetti code that we made and end up talking about which are the differences between:
* Framework coupled code
* DDD modules
* Bounded Contexts
* Microservices
Blog post: http://codely.tv/screencasts/codigo-acoplado-framework-microservicios-ddd
YouTube video (Spanish): https://www.youtube.com/watch?v=o0w-jYun6AU
Twitter: https://twitter.com/CodelyTV
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This presentation is Part 9 of the EWD 3 Training Course. It explains how you can construct and send complex messages from the browser to the QEWD back-end, and how to construct and return complex messages back to the browser.
The talk presents how we established a TDD cycle within the complex AEM technology stack using a "unified testing API". It illustrates how such an API can be built and discusses various advantages over other approaches such as the Sling Testing API.
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Scala language overview
Java EE 7 architecture and design
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Using Gradle as a build tool
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JAX-RS endpoints
Servlet Endpoints
JMS Messaging
Scala adoption advice and hints for sustainable team development
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CS442 - Rogue: A Scala DSL for MongoDBjorgeortiz85
Talk at Stanford's CS442 (High Productivity and Performance with Domain Specific Languages in Scala http://www.stanford.edu/class/cs442/), on Rogue. 5/24/2011
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A walkthrough of how to write a complete HTML5 web app (both front end and back end) using Google App Engine (Python), Backbone.js, Require.js, underscore.js and jQuery.
Session highlighting and demonstrating approaches to common challenges in modern portlet development. Topics include AJAX in JSR-168 and JSR-286 portlets, CSS and Javascript toolkits, security, and optimization of front-end resources. This session was presented at the Jasig Spring 2010 conference in San Diego, CA by Jennifer Bourey.
A guide to create a simple Java application and upload it to the Google Cloud Platform with Google App Engine. This presentation covers usage of persistence API with both Google Cloud SQL and Google Cloud Datastore.
This is my talk from Rails Israel 2014. I'm talking about web components, how they work, what libraries exist and how to use web components with Ruby on Rails.
'Elevate your webapps with Scala & Lift', as presented on JEEConf 2012, Kiev, Ukraine
Also see: http://branchandbound.net/blog/conferences/2012/05/jeeconf-tripreport/
Mobile applications Development - Lecture 12
Javascript
jQuery (Zepto)
useful microframeworks
This presentation has been developed in the context of the Mobile Applications Development course at the Computer Science Department of the University of L’Aquila (Italy).
http://www.di.univaq.it/malavolta
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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.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
7. Why is Lift Better?
Convention over
configuration Clean separation of presentation
content and logic
Leverage the Responsive
Scala programming language community
Concise code increases Powerful AJAX & Comet
productivity Support
Highly Scalable
10. index.html
<lift:surround with="default" at="content">
<h2>Welcome to your project!</h2>
<p><lift:helloWorld.howdy /></p>
</lift:surround>
class HelloWorld {
def howdy = <span>Welcome to helloworld at {new
_root_.java.util.Date}</span>
}
12. Boot Class
package bootstrap.liftweb
import _root_.net.liftweb.util._
import _root_.net.liftweb.http._
import _root_.net.liftweb.sitemap._
import _root_.net.liftweb.sitemap.Loc._
import Helpers._
/**
* A class that's instantiated early and run. It allows the
application
* to modify lift's environment
*/
class Boot {
def boot {
// where to search snippet
LiftRules.addToPackages("demo.helloworld")
// Build SiteMap
val entries = Menu(Loc("Home", List("index"), "Home")) ::
Nil
LiftRules.setSiteMap(SiteMap(entries:_*))
}
}
13. Lift Entry Point
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<filter>
<filter-name>LiftFilter</filter-name>
<display-name>Lift Filter</display-name>
<description>The Filter that intercepts lift
calls</description>
<filter-class>net.liftweb.http.LiftFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>LiftFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
14. Lift’s Main Objects
net.liftweb.http.S
net.liftweb.http.SHtml
net.liftweb.http.LiftRules
15. Template Snippets
Boot Adding AJAX
class Spice
Model
19. Mapper and Record Frameworks
Per instance
Mapper
Global
MetaMapper
Record
Per field
MappedField
<project ...>
...
<dependencies>
...
<dependency>
<groupId>net.liftweb</groupId>
<artifactId>lift-mapper</artifactId>
<version>1.0</version> <!-- or 1.1-SNAPSHOT, etc -->
</dependency>
</dependencies>
...
</project>
33. Form Processing
class Show {
def myForm(xhtml: NodeSeq) = {
var name = ""
def handleYear(year: String) {
... the form’s been submitted... do something
}
bind("f", xhtml, "name" -> text(name, name = _),
"year" -> select((1900 to 2007).
toList.map(_.toString).
reverse.map(v => (v, v)),
Empty, handleYear _))
}
}
34. Goodies
ProtoUser and MegaProtoUser
class User extends ProtoUser[User] {
override def shortName = firstName.is
override lastNameDisplayName = "surname"
}
44. Rails v/s Lift
For single request processing, the lift code, running inside Tomcat, ran 4
times faster than the Rails code running inside Mongrel. However, the CPU
utilization was less than 5% in the lift version, where it was 100% of 1 CPU
(on a dual core machine) for the Rails version. For multiple simultaneous
requests being made from multiple machines, we're seeing better than 20x
performance of the lift code versus the Rails code with 5 Mongrel instances.
Once again, the lift code is not using very much CPU and the Rails code is
pegging both CPUs.
http://lambda-the-ultimate.org/node/2147