This document provides tips and best practices for using the Eclipse Modeling Framework (EMF). It discusses designing a model provider API, using item providers, working with the common command framework, reloading working models, finding EMF references, why notifications are called adapters, resource proxies, on-demand loading, useful commands, the role of the editing domain, optimizing Ecore models, defining custom data types, maintaining in-memory lists, creating unique lists, suppressing object creation, controlling command appearance, using custom adapter factories, refreshing viewers and selections, using item providers for labels and content, registering custom resource factories, encrypting/decrypting streams, querying XML data using EMF, serializing QNames, loading resources
Understanding bytecode and what bytecode is likely to be generated by a Java compiler helps the Java programmer in the same way that knowledge of assembler helps the C or C++ programmer. Java bytecode is the form of instructions that Java virtual machine executes. This knowledge is crucial when debugging and doing performance and memory usage tuning. The presenter will share his knowledge on what bytecode means for your platform and how to create compiler while using some awesome tools.
ASTs are an incredibly powerful tool for understanding and manipulating JavaScript. We'll explore this topic by looking at examples from ESLint, a pluggable static analysis tool, and Browserify, a client-side module bundler. Through these examples we'll see how ASTs can be great for analyzing and even for modifying your JavaScript. This talk should be interesting to anyone that regularly builds apps in JavaScript either on the client-side or on the server-side.
Java pre-processing and annotations talk. How to do it? How it works? Why to do it?
Github code: https://github.com/luanpotter/annotation-preprocessing
https://github.com/luanpotter/reflection-utils
Esprima is a JavaScript parser that produces an abstract syntax tree (AST) from JavaScript code. The AST can then be traversed and analyzed to gather metadata and perform tasks like syntax validation, code completion, and instrumentation. Esprima supports ECMAScript 5.1 and below and can be used from browsers, Node.js, RequireJS, and other environments/packages. It parses code into a JSON AST and has options to customize the output.
The document provides an overview of JavaScript, covering what it is, its basics, functions, objects, prototypes, scope, asynchronous JavaScript, JSON, debugging tools, performance, events, error handling, and the future of JavaScript. It discusses that JavaScript is an object-oriented scripting language used in web pages that is not tied to specific browsers but makes use of the DOM, BOM, and ECMAScript standards. It also summarizes some of JavaScript's core features like functions, objects, prototypes, and more.
The document provides an overview of fundamental JavaScript concepts such as variables, data types, operators, control structures, functions, and objects. It also covers DOM manipulation and interacting with HTML elements. Code examples are provided to demonstrate JavaScript syntax and how to define and call functions, work with arrays and objects, and select and modify elements of a web page.
Understanding bytecode and what bytecode is likely to be generated by a Java compiler helps the Java programmer in the same way that knowledge of assembler helps the C or C++ programmer. Java bytecode is the form of instructions that Java virtual machine executes. This knowledge is crucial when debugging and doing performance and memory usage tuning. The presenter will share his knowledge on what bytecode means for your platform and how to create compiler while using some awesome tools.
ASTs are an incredibly powerful tool for understanding and manipulating JavaScript. We'll explore this topic by looking at examples from ESLint, a pluggable static analysis tool, and Browserify, a client-side module bundler. Through these examples we'll see how ASTs can be great for analyzing and even for modifying your JavaScript. This talk should be interesting to anyone that regularly builds apps in JavaScript either on the client-side or on the server-side.
Java pre-processing and annotations talk. How to do it? How it works? Why to do it?
Github code: https://github.com/luanpotter/annotation-preprocessing
https://github.com/luanpotter/reflection-utils
Esprima is a JavaScript parser that produces an abstract syntax tree (AST) from JavaScript code. The AST can then be traversed and analyzed to gather metadata and perform tasks like syntax validation, code completion, and instrumentation. Esprima supports ECMAScript 5.1 and below and can be used from browsers, Node.js, RequireJS, and other environments/packages. It parses code into a JSON AST and has options to customize the output.
There are several JavaScript libraries available in the world of web programming. And, as the usage and complexity is increasing day by day, sometimes it becomes very difficult and confusing to understand and create modules using those libraries, especially for those having strong background of Object Oriented Languages.
So this one hour session will make an effort to go into the very basics of JavaScript and put a base for writing modular JavaScript code.
Slides from a tutorial I gave at ETech 2006. Notes to accompany these slides can be found here: http://simonwillison.net/static/2006/js-reintroduction-notes.html
Functional programming in Scala. Looking at various examples of defining a program first and executing it at some later stage, separating pure functions from side effects.
The document provides an introduction to basic Javascript concepts such as variables, scopes, closures, prototypes, and object-oriented programming principles including inheritance and namespaces over several sections; it also discusses how Javascript code is executed in an execution context and how functions, closures, and prototypes work together to enable OOP functionality in Javascript.
This document provides an overview and introduction to JavaScript basics and best practices. It covers what JavaScript is, how engines work, language features, and future developments like ES6. The basics section discusses types, variables, expressions, statements, functions, objects, and prototypical inheritance. The best practices section focuses on techniques for enterprise applications. The document is intended to help front-end developers learn JavaScript fundamentals.
Recipes to build Code Generators for Non-Xtext Models with XtendKarsten Thoms
This document discusses code generators for non-Xtext models using Xtend. It provides an overview of creating minimal generators using JSON and Xtend templates, and more full-featured generators using the Xtext framework and EMF models. Key aspects covered include model navigation in Xtend templates, extensions, dynamic dispatch, IDE support, modularization, dependency injection, and incremental generation.
Sven and I are going to classify Xtext compared to other concepts and frameworks and demonstrate its capabilities with a refined version of an example I presented in London the week before. After that we discuss the versatile possibilities for extending and customizing the framework and finish with an exciting outlook.
PHP 8.0 is expected to be released by the end of the year, so it’s time to take a first look at the next major version of PHP. Attributes, union types, and a just-in-time compiler are likely the flagship features of this release, but there are many more improvements to be excited about. As PHP 8.0 is a major version, this release also includes backwards-incompatible changes, many of which are centered around stricter error handling and more type safety.
This talk will discuss new features already implemented in PHP 8, backwards-compatibility breaks to watch out for, as well as some features that are still under discussion.
JavaScript is a scripting language used to make web pages interactive. It was created in 1995 and standardized as ECMAScript. JavaScript can access and modify the content, structure, and style of documents. It is used to handle events, perform animations, and interact with forms on web pages. Common uses of JavaScript include form validation, navigation menus, lightboxes, and sliders on websites.
The document introduces several uncommon design patterns:
1) Null Object pattern avoids using null values by implementing a "null" object that respects the expected interface.
2) Encapsulated Context pattern encapsulates common services/data needed by different components in a single context object rather than using global objects.
3) Role Object pattern handles modeling problems where an element can have different roles by using role objects that are added to and removed from a core object.
4) ISP & Object Adaptation pattern allows objects to adapt to different protocols by checking for direct implementation, using registered adapters, or throwing exceptions.
5) Essence pattern uses an "essence" class to encapsulate an object's configuration and
DESIGNING A PERSISTENCE FRAMEWORK WITH PATTERNS.pptAntoJoseph36
The document discusses designing a persistence framework using patterns. It describes persistent objects that survive process termination and storage mechanisms like object and relational databases. A persistence framework provides functions to store/retrieve objects and commit/rollback transactions. Key concepts covered include mapping objects to tables, object identity, materialization/dematerialization, caches, and transactions. Common patterns used in persistence frameworks are also described, such as representing objects as tables, the database mapper pattern, template method for caching, and the state pattern for transaction management.
Core Data allows developers to work with Swift objects and persist them to storage like SQLite. It provides an object graph and change tracking system so objects can be saved, retrieved, and queried. The Core Data stack includes managed objects, managed object contexts, and a persistent store coordinator that interacts with the backend store. Entities in a data model define the structure and relationships of persisted objects.
A summary of core data optimization in iOS app. How to search in the large database having more than 100k records.
Perform a search on different types of tags in core data.
The state of hooking into Drupal - DrupalCon DublinNida Ismail Shah
https://events.drupal.org/dublin2016/sessions/state-hooking-drupal
Major portion of drupal development has been about hooks. We have all used them. But there have been talks about replacing the procedural hook system in Drupal with its Object oriented version - Events. We are already on the track and we, as of now, are required to use Events for many things in Drupal 8.
This session will mainly elustrate:
How hooks work in Drupal.
How we are on the track of moving from hooks to Events in Drupal 8
Where we are? What all do we need Events for and where we are still stuck with hooks.
When to alter and when to fire an event.
How to create and dispatch an Event from your module.
How to listen or subscribe to an Event from your custom Event or an event from core.
How to expose custom hooks in Drupal 8.
Attendees should be familiar with:
Basic Drupal 8 module development.
Basic OOP principles and practices.
Symfony components used in D8.
After attending this session attendees will be able to:
Create their custom events in Drupal 8
Subscribe to the events from core and other modules and to their custom events too.
Will have a knowledge of where to explore the events and where we have to still use hooks.
This document discusses various techniques for optimizing Core Data performance and memory usage. It covers topics like thread safety in Core Data, multithreading strategies using notifications or parent-child managed object contexts, different fetch request options like batch size and result type, using expressions and grouping for fetching, prefetching relationships, optimizing predicates by using numerical comparisons first and beginswith/endswith, and printing SQL logs for debugging.
The document discusses various design patterns used in software development with Eclipse, including creational, structural, and behavioral patterns. It provides examples of how patterns like singleton, observer, strategy, composite, proxy, visitor, memento, and adapter are applied in Eclipse for tasks like managing global access points, responding to changes, customizing behavior, defining object relationships, and separating interfaces from implementations. The goal of using these patterns is to create loosely coupled systems that are flexible and able to handle change.
This document discusses several design patterns: Factory, Flyweight, Singleton, Observer, Proxy, Decorator. It provides definitions and examples of when to use each pattern. The Factory pattern creates objects without specifying the exact class. Flyweight reduces memory usage by sharing instances. Singleton ensures only one instance exists. Observer notifies dependent objects of state changes. Proxy controls access to another object. Decorator adds new behaviors to an object dynamically.
The document discusses JavaScript concepts including functions, scope, closures, context, constructors, methods, and object-oriented programming. Some key points:
- Functions are treated as values that can be assigned to variables or passed as arguments.
- Only functions have scope; blocks like if/else do not create scope. Variables declared without var are global.
- Inner functions maintain access to outer functions' variables even after execution (closures).
- Context refers to the object a function is called on, maintained through the this keyword.
- Constructors use the new operator to create object instances. Methods can be public, private, or privileged.
Taming Core Data by Arek Holko, MacoscopeMacoscope
The document discusses best practices for working with Core Data in iOS applications. It covers 9 steps: 1) setting up Core Data, 2) accessing the managed object context, 3) creating NSManagedObject subclasses, 4) creating fetch requests, 5) integrating networking, 6) using NSFetchedResultsController, 7) protocolizing models, 8) using immutable models, and 9) modularizing the code. The overall message is that Core Data code should be organized cleanly using small, single-purpose classes and protocols to improve testability, separation of concerns, and code reuse.
L0043 - Interfacing to Eclipse Standard ViewsTonny Madsen
Eclipse contains a large number of standard views that can be extended to support new languages or data models. This model focus on the interface to the most common Eclipse views: Problems View, Outline View, and the Properties View.
This document discusses CakeEntity, an ActiveRecord plugin for CakePHP that allows models to be used like ActiveRecord objects. It provides object-based find results and allows saving data directly through entity objects. Key features mentioned include compatible usage with core CakePHP, automatic caching of related object properties, and ability to place domain logic in entity subclasses. The document suggests how to set it up and provides examples of finding, saving, and accessing entity objects.
EJB 3.0 introduced major changes from previous EJB versions to address criticisms and simplify development. Key changes include support for POJO-based development with annotations, optional deployment descriptors, the removal of home interfaces, and a new entity persistence model based on Hibernate that allows for ORM-style development and querying. The presentation provides examples to illustrate how sessions, dependencies, interceptors, and entity relationships work in EJB 3.0 compared to previous versions.
The document provides an overview of JavaScript design patterns including creational, structural, and behavioral patterns. It discusses common patterns like the module pattern, prototype pattern, factory pattern, decorator pattern, observer pattern, and more. Code examples are provided to demonstrate how each pattern works in JavaScript.
JavaScript has some stunning features like Closures, Prototype etc. which can help to improve the readability and maintainability of the code. However, it is not easy for inexperienced developer to consume and apply those features in day to day coding. The purpose of the presentation ‘Advanced JavaScript’ is to help a reader easily understand the concept and implementation of some advanced JavaScript features.
Adding a modern twist to legacy web applicationsJeff Durta
Avoid misery of working with legacy code
We will see how you can add independent and isolated components to existing pages; pages that may be difficult to change
React and Flux allow you to make self-contained additions that handle their own data access/persistence
The document discusses several design patterns including Singleton, Factory Method, Strategy, and others. It provides descriptions of the patterns, examples of how they can be implemented in code, and discusses how some patterns like Singleton can be adapted for multi-threaded applications. It also briefly introduces the Multiton pattern, which is an extension of Singleton that allows multiple instances associated with different keys.
JavaScript language plays a very important role in Web 2.0 application development. JavaScript has its own characteristics different than object-oriented languages and it's not easy for developers to understand.
This presentation covers major advanced topics in JavaScript languages, including prototype chain, identifier resolving, "this" keyword, "new" operator, execution context and scope chain and closure. Besides that, it also covers best practices when using JavaScript.
We, as developers, often think that we don’t have to or don’t need to know what are what they call design patterns. We think that we already know how to build a software and don’t need all this theory. Years after years, by having to deal with the low maintainability of my own codebases, I explored a lot of ways of decoupling applications, in order to have enterprise-grade software that last for years. With concrete examples, I want to share with you some design patterns and how they can help you to grow well structured and decoupled applications.
This document summarizes several practical machine learning applications and use cases that were presented at various conferences through video links and slides. It discusses advanced recommender applications, product ranking, natural language understanding, digital marketing, personalized content blending, anomaly and pattern detection in time-series data, and deep learning applications. Specific use cases covered include recommendations at Amazon, StitchFix, Netflix, natural language processing of product reviews, medical data analysis, digital advertising optimization at AOL, personalized recommendations at Pinterest, anomaly detection at Intel, and question answering, image recognition and dialogue systems using deep learning.
MS CS - Selecting Machine Learning AlgorithmKaniska Mandal
ML Algorithms usually solve an optimization problem such that we need to find parameters for a given model that minimizes
— Loss function (prediction error)
— Model simplicity (regularization)
Core concepts and Key technologies - Big Data AnalyticsKaniska Mandal
Big data analytics has evolved beyond batch processing with Hadoop to extract intelligence from data streams in real time. New technologies preserve data locality, allow real-time processing and streaming, support complex analytics functions, provide rich data models and queries, optimize data flow and queries, and leverage CPU caches and distributed memory for speed. Frameworks like Spark and Shark improve on MapReduce with in-memory computation and dynamic resource allocation.
Machine Learning Comparative Analysis - Part 1Kaniska Mandal
This document provides an overview of machine learning concepts and algorithms. It discusses supervised and unsupervised classification as well as reinforcement learning. Important concepts covered include concepts, instances, target concepts, hypotheses, inductive bias, Occam's razor, and restriction bias. Machine learning algorithms discussed include Bayesian classification, decision trees, linear regression, multi-layer perceptrons, K-nearest neighbors, boosting, and ensemble learning. The document compares the preferences, learning functions, performance, enhancements, and typical usages of these different machine learning approaches.
The document describes how to create a debugger framework over TCP/IP and HTTP. It discusses launching a debugger, handling debug events on the client and server sides, and processing debug events using a language interpreter. The debugger architecture involves a debug launcher, debug view, debug event listener, and debug event processor. The debug launcher starts the debugger and establishes communication with the remote debug target. The debug view handles UI elements like stack frames. The listener handles events like breakpoints, and the processor uses the language interpreter and AST utilities to generate debug responses.
The document provides guidelines for designing APIs. Some key points include:
1) Each API should clearly explain what the user can achieve and how to use it. Documentation is important.
2) Consider using annotations to mark APIs as deprecated or to specify thread safety and other implementation details.
3) Use factory methods instead of constructors when possible to increase flexibility and avoid tight coupling.
4) Make implementation classes immutable to avoid side effects and threading issues.
5) Provide consistent exceptions at the appropriate level of abstraction.
The document discusses concepts related to concurrency and multithreading in Java. It defines key terms like threads, locks, and conditions. It explains that threads allow independent tasks to run concurrently for improved performance. Synchronization ensures predictable sharing of memory between threads using monitors, volatile fields provide a lightweight synchronization. Locks provide more flexible locking than synchronized blocks. Conditions can be used to signal between threads waiting on a shared resource like a blocking queue.
The document discusses the evolution of modeling in Eclipse. It describes Joshua Epstein's view that modeling is important for many reasons like explaining phenomena, guiding data collection, and educating others. It also discusses how Eclipse modeling capabilities have expanded with technologies like GMF, EMF, and CDO. Modeling has advanced further with the Agent Modeling Platform (AMP) which allows agent-based modeling of complex systems using autonomous agents. AMP can be used independently or with other Eclipse tools to simulate phenomena and support visualization and reasoning.
Chrome and HTML5 are opening up new possibilities by moving the web away from desktop vendor lock-in and internet monopolies. Browsers empowered with HTML5 can now support rich media, offline storage, and multi-core processing, allowing web apps to become as powerful as desktop apps. HTML5 features like video, canvas, web sockets, and geolocation will be supported by all major browsers by the end of 2010, except Internet Explorer, which will only support some features. This will lead to new startups and initiatives developing innovative products using these open standards.
The document discusses the problem of repeatedly creating new URLClassLoader instances without closing previous instances. This causes OutOfMemory errors as the classloaders accumulate and prevent garbage collection from freeing up resources like JarFile objects. The solution is to explicitly call loader.close() or sun.misc.ClassLoaderUtil.releaseLoader(loader) on each classloader instance after use to allow the resources to be released and prevent memory leaks.
Making Applications Work Together In EclipseKaniska Mandal
Eclipse uses a plugin architecture with a chain of classloaders to load plugins lazily. Third-party jars can be bundled within plugins and exposed to other plugins. The Eclipse-BuddyPolicy allows a plugin to access classes from jars in "buddy" plugins. Users can add third-party jars by modifying the eclipse.ini file and placing jars in a plugin's lib folder specified in its manifest. A custom classloader can load classes from third-party jars not bundled within a plugin.
The document provides tips for finding resources in the Eclipse workspace using a visitor. It describes creating a class that implements IResourceProxyVisitor and overriding the visit() method. This method would check each resource proxy for a match to the location string and return the resource if found. This allows recursively searching the workspace to locate a resource based on its path or other identifier.
The document discusses Eclipse e4, a new version of Eclipse that aims to make it more web-enabled and service-oriented. It provides key features such as XWT for UI development using XML, CSS support, and integrating JavaScript. Most importantly, e4 implements a service-oriented programming model using OSGi where Eclipse components are made available as reusable services outside of the IDE environment. This addresses limitations of tightly coupling components to the platform in previous versions of Eclipse.
The document describes steps to customize the GMF drag-and-drop framework. It involves contributing a custom edit policy provider, attaching a custom edit policy and drop target listener to edit parts, preparing dropped objects, finding a target edit part, returning commands from edit parts, and executing drag-and-drop commands to create concepts through generators.
The document discusses building a custom language editor leveraging the Dynamic Language Toolkit (DLTK) in Eclipse. It provides an overview of Eclipse's text editing framework and describes how DLTK can be used to build language-specific features like content assistance, navigation, debugging, and views. The key components for a DLTK-based language editor are described, including creating language toolkits, parsers, and extending existing DLTK extension points. Sample code is provided for setting up a language nature, building a parser to generate the AST model from source code, and extending DLTK's source element parser.
Hibernate provides object relational mapping and allows working with data at the object level rather than directly with SQL. It abstracts the underlying database, handles change detection and caching. The session factory handles connection pooling and caching of mappings. The session represents a unit of work and tracks changes to objects, flushing updates to the database at the end of the session. The first level cache tracks changes to objects within a session. Query caching caches query results to improve performance. The second level cache caches objects beyond a single session.
This document summarizes 10 upcoming features in JDK 7:
1. Switch statements can now use Strings as case values.
2. Automatic Resource Management (ARM) simplifies try-with-resources statements.
3. Dynamic method invocation allows calling methods only known at runtime.
4. ThreadLocalRandom provides thread-safe random number generation.
5. java.util.Objects contains utility methods for null checks and hashCode/equals.
6. Deep equals allows deep comparison of objects and arrays.
7. Exceptions can be caught by multiple exception types.
8. Static methods can now be overridden in interfaces.
9. The new File API improves file I/O exceptions and performance.
This document describes the steps to convert a database schema into UML classes by dragging database tables and dropping them onto a custom UML editor. The key steps are:
1. Contribute a custom edit policy provider to the GMF editor
2. Install canonical and drag-drop edit policies on the diagram root edit part
3. Prepare a list of objects being dragged and set on the drop request
4. Allow dropped objects in the canonical edit policy
5. Calculate and return the target edit part from the drop location
6. Return the required drag-drop command from the target edit part
7. Execute the drag-drop command to generate UML classes
The document proposes a graphical model transformation framework (GMTF) to normalize heterogeneous domain models into a standard UML format. The framework involves first capturing business requirements in a computation independent model (CIM) using various specifications. The CIM is then converted into a platform independent model (PIM) using EMF. Finally, the PIM is translated into one or more platform-specific models (PSMs) using tools like Eclipse. Case studies demonstrate converting models from WSDL, Java code, and database schemas into UML-based PSMs using the GMTF approach.
The document discusses enterprise mashups using tools like JackBe Presto and jMaki, which allow users to easily combine and visualize data from multiple sources. Mashups empower business users to dynamically query and merge relevant data to meet situational requirements. Examples show how mashups can integrate calendars, events, maps and other services to create customized applications without coding.
Advanced Techniques for Cyber Security Analysis and Anomaly DetectionBert Blevins
Cybersecurity is a major concern in today's connected digital world. Threats to organizations are constantly evolving and have the potential to compromise sensitive information, disrupt operations, and lead to significant financial losses. Traditional cybersecurity techniques often fall short against modern attackers. Therefore, advanced techniques for cyber security analysis and anomaly detection are essential for protecting digital assets. This blog explores these cutting-edge methods, providing a comprehensive overview of their application and importance.
Transcript: Details of description part II: Describing images in practice - T...BookNet Canada
This presentation explores the practical application of image description techniques. Familiar guidelines will be demonstrated in practice, and descriptions will be developed “live”! If you have learned a lot about the theory of image description techniques but want to feel more confident putting them into practice, this is the presentation for you. There will be useful, actionable information for everyone, whether you are working with authors, colleagues, alone, or leveraging AI as a collaborator.
Link to presentation recording and slides: https://bnctechforum.ca/sessions/details-of-description-part-ii-describing-images-in-practice/
Presented by BookNet Canada on June 25, 2024, with support from the Department of Canadian Heritage.
YOUR RELIABLE WEB DESIGN & DEVELOPMENT TEAM — FOR LASTING SUCCESS
WPRiders is a web development company specialized in WordPress and WooCommerce websites and plugins for customers around the world. The company is headquartered in Bucharest, Romania, but our team members are located all over the world. Our customers are primarily from the US and Western Europe, but we have clients from Australia, Canada and other areas as well.
Some facts about WPRiders and why we are one of the best firms around:
More than 700 five-star reviews! You can check them here.
1500 WordPress projects delivered.
We respond 80% faster than other firms! Data provided by Freshdesk.
We’ve been in business since 2015.
We are located in 7 countries and have 22 team members.
With so many projects delivered, our team knows what works and what doesn’t when it comes to WordPress and WooCommerce.
Our team members are:
- highly experienced developers (employees & contractors with 5 -10+ years of experience),
- great designers with an eye for UX/UI with 10+ years of experience
- project managers with development background who speak both tech and non-tech
- QA specialists
- Conversion Rate Optimisation - CRO experts
They are all working together to provide you with the best possible service. We are passionate about WordPress, and we love creating custom solutions that help our clients achieve their goals.
At WPRiders, we are committed to building long-term relationships with our clients. We believe in accountability, in doing the right thing, as well as in transparency and open communication. You can read more about WPRiders on the About us page.
Implementations of Fused Deposition Modeling in real worldEmerging Tech
The presentation showcases the diverse real-world applications of Fused Deposition Modeling (FDM) across multiple industries:
1. **Manufacturing**: FDM is utilized in manufacturing for rapid prototyping, creating custom tools and fixtures, and producing functional end-use parts. Companies leverage its cost-effectiveness and flexibility to streamline production processes.
2. **Medical**: In the medical field, FDM is used to create patient-specific anatomical models, surgical guides, and prosthetics. Its ability to produce precise and biocompatible parts supports advancements in personalized healthcare solutions.
3. **Education**: FDM plays a crucial role in education by enabling students to learn about design and engineering through hands-on 3D printing projects. It promotes innovation and practical skill development in STEM disciplines.
4. **Science**: Researchers use FDM to prototype equipment for scientific experiments, build custom laboratory tools, and create models for visualization and testing purposes. It facilitates rapid iteration and customization in scientific endeavors.
5. **Automotive**: Automotive manufacturers employ FDM for prototyping vehicle components, tooling for assembly lines, and customized parts. It speeds up the design validation process and enhances efficiency in automotive engineering.
6. **Consumer Electronics**: FDM is utilized in consumer electronics for designing and prototyping product enclosures, casings, and internal components. It enables rapid iteration and customization to meet evolving consumer demands.
7. **Robotics**: Robotics engineers leverage FDM to prototype robot parts, create lightweight and durable components, and customize robot designs for specific applications. It supports innovation and optimization in robotic systems.
8. **Aerospace**: In aerospace, FDM is used to manufacture lightweight parts, complex geometries, and prototypes of aircraft components. It contributes to cost reduction, faster production cycles, and weight savings in aerospace engineering.
9. **Architecture**: Architects utilize FDM for creating detailed architectural models, prototypes of building components, and intricate designs. It aids in visualizing concepts, testing structural integrity, and communicating design ideas effectively.
Each industry example demonstrates how FDM enhances innovation, accelerates product development, and addresses specific challenges through advanced manufacturing capabilities.
RPA In Healthcare Benefits, Use Case, Trend And Challenges 2024.pptxSynapseIndia
Your comprehensive guide to RPA in healthcare for 2024. Explore the benefits, use cases, and emerging trends of robotic process automation. Understand the challenges and prepare for the future of healthcare automation
Fluttercon 2024: Showing that you care about security - OpenSSF Scorecards fo...Chris Swan
Have you noticed the OpenSSF Scorecard badges on the official Dart and Flutter repos? It's Google's way of showing that they care about security. Practices such as pinning dependencies, branch protection, required reviews, continuous integration tests etc. are measured to provide a score and accompanying badge.
You can do the same for your projects, and this presentation will show you how, with an emphasis on the unique challenges that come up when working with Dart and Flutter.
The session will provide a walkthrough of the steps involved in securing a first repository, and then what it takes to repeat that process across an organization with multiple repos. It will also look at the ongoing maintenance involved once scorecards have been implemented, and how aspects of that maintenance can be better automated to minimize toil.
An invited talk given by Mark Billinghurst on Research Directions for Cross Reality Interfaces. This was given on July 2nd 2024 as part of the 2024 Summer School on Cross Reality in Hagenberg, Austria (July 1st - 7th)
Quality Patents: Patents That Stand the Test of TimeAurora Consulting
Is your patent a vanity piece of paper for your office wall? Or is it a reliable, defendable, assertable, property right? The difference is often quality.
Is your patent simply a transactional cost and a large pile of legal bills for your startup? Or is it a leverageable asset worthy of attracting precious investment dollars, worth its cost in multiples of valuation? The difference is often quality.
Is your patent application only good enough to get through the examination process? Or has it been crafted to stand the tests of time and varied audiences if you later need to assert that document against an infringer, find yourself litigating with it in an Article 3 Court at the hands of a judge and jury, God forbid, end up having to defend its validity at the PTAB, or even needing to use it to block pirated imports at the International Trade Commission? The difference is often quality.
Quality will be our focus for a good chunk of the remainder of this season. What goes into a quality patent, and where possible, how do you get it without breaking the bank?
** Episode Overview **
In this first episode of our quality series, Kristen Hansen and the panel discuss:
⦿ What do we mean when we say patent quality?
⦿ Why is patent quality important?
⦿ How to balance quality and budget
⦿ The importance of searching, continuations, and draftsperson domain expertise
⦿ Very practical tips, tricks, examples, and Kristen’s Musts for drafting quality applications
https://www.aurorapatents.com/patently-strategic-podcast.html
Choose our Linux Web Hosting for a seamless and successful online presencerajancomputerfbd
Our Linux Web Hosting plans offer unbeatable performance, security, and scalability, ensuring your website runs smoothly and efficiently.
Visit- https://onliveserver.com/linux-web-hosting/
Blockchain technology is transforming industries and reshaping the way we conduct business, manage data, and secure transactions. Whether you're new to blockchain or looking to deepen your knowledge, our guidebook, "Blockchain for Dummies", is your ultimate resource.
7 Most Powerful Solar Storms in the History of Earth.pdfEnterprise Wired
Solar Storms (Geo Magnetic Storms) are the motion of accelerated charged particles in the solar environment with high velocities due to the coronal mass ejection (CME).
UiPath Community Day Kraków: Devs4Devs ConferenceUiPathCommunity
We are honored to launch and host this event for our UiPath Polish Community, with the help of our partners - Proservartner!
We certainly hope we have managed to spike your interest in the subjects to be presented and the incredible networking opportunities at hand, too!
Check out our proposed agenda below 👇👇
08:30 ☕ Welcome coffee (30')
09:00 Opening note/ Intro to UiPath Community (10')
Cristina Vidu, Global Manager, Marketing Community @UiPath
Dawid Kot, Digital Transformation Lead @Proservartner
09:10 Cloud migration - Proservartner & DOVISTA case study (30')
Marcin Drozdowski, Automation CoE Manager @DOVISTA
Pawel Kamiński, RPA developer @DOVISTA
Mikolaj Zielinski, UiPath MVP, Senior Solutions Engineer @Proservartner
09:40 From bottlenecks to breakthroughs: Citizen Development in action (25')
Pawel Poplawski, Director, Improvement and Automation @McCormick & Company
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EMF Tips n Tricks
1. Eclipse Modeling Framework – Tips n Tricks
1.Design a Model Provider API
Always invoke the singleton instance of a ModelProvider from anywhere in the
application as a single point contact for managing the lifecycle and behavior of model
Ø It should contain the corresponding editing domain, file resource, resource set,
associated editor part, navigator and tabbed propertypage sheet
Ø It should maintain a single copy of the domain model in the memory.
getModel(IResource resource)
Ø It should maintain the list of cross-references
Ø It should be a resource-change listener so that
o it can un-load the model and delete the emf resource when the file
resource is deleted
o It can modify the resource-uri when the file is moved / renamed
Ø Whenever the resource uri is changed then using EcoreUtil CrossReferencer
ModelProvider should find out what all models should be refactored
Ø ModelProvider should also register all required ItemAdapterFactories
Ø It should provide the custom persistence policy for the model if needed
2.Item Provider is the single-most powerful feature in EMF. They should be utilized
to the fullest. It provides the functions to
Ø Implement content and label provider
By using mixin interfaces – delegate pattern
Public Object[] getchilren(Object object){
ITreeItemContentProvider adapter =
(ITreeItemContentProvider )
adapterFactory.adapt(object, ITreeItemContentProvider .class);
return aapter.getChildren(object).toArray();
}
Ø Adapt the model objects to implement whatever interfaces the editors and
views need.
Ø Propagate the change-notifications to viewers
Ø Act as command factory
Ø Provide a property source for model objects
3. Effective usage of Common Command Fwk
getResult() should be overridden to return relevant model objects so that
(1) result of one command can be input to another command
2. (2) the required diagram element or xml node or language statement or property
section can be selected and highlighted
getAffectedObjects()
4.WorkingModel – should be reloaded when the resource is modified/deleted
if (workingModelListener == null) {
workingModelListener = new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
if (WorkingModel.PROP_DIRTY.equals(evt.getPropertyName())) {
editorDirtyStateChanged(); }
else if (WorkingModel.PROP_RELOADED.equals(evt.
.getPropertyName())) {
reloadModel((IFile) getWorkingModel()
.getEclipseResources().get(0)); }
else if (WorkingModel.PROP_REMOVED.equals.getPropertyName())) {
Object newLocation = evt.getNewValue();
if(newLocation == null) {
cleanupModelCopyOfDeletedResource();
close(false); }
else if (newLocation instanceof IPath) { // file is renamed
IFile newFile = ResourcesPlugin.getWorkspace()
.getRoot().getFile( (IPath) newLocation);
if (newFile != null && newFile.exists()) {
reloadModel(newFile); }
else {
close(false); }
}
else {
close(false);
}
5. How to find EMF References ?
private Node findReferingModel(EObject eo) {
Collection<Setting> referrers = EcoreUtil.UsageCrossReferencer.find(eo,
eo.eResource());
Iterator<Setting> it = referrers.iterator();
while (it.hasNext()) {
Setting referer = (Setting) it.next();
EObject referredObj = referer.getEObject();
return referredObj;
3. }
6. Why Notification Listeners in EMF are also called Adapters ?
A. Apart from observing the changes in eObjects, they also help - extending the
behavior i.e. support additional interfaces without subclassing - (Adapter pattern)
Attaching an Adapter as Observer :
Adapter myEObjectObserver = ...
myEObjectObserver.eAdapters().add(myEObjectObserver);
Attaching an Adapter as a Behaviour Extension :
MyEObject myEObject = ....
AdapterFactory myEObjectAdapterFactory = ....
Object myEObjectType <==
if(myEObjectAdapterFactory.isFactoryType(myEObjectType )){
Adapter myEObjectAdapter =
myEObjectAdapterFactory.adapt(myEObject, myEObjectType);
.....
}
Attaching an adapter to all the eobjects under the root
So far we have seen how to adapt to the changes to a particular EObject.
Q. Now how to adapt to all the objects in the containment hierarchy, a resource and a set
of related resources :
EContentAdapter - can be attached to a root object, a resource or even a resourseset.
7. What is resource-proxy and on-demand resource loading ?
A. Say PO Entity simply refers to an Item Entity i.e. there is no by-value
aggregation/strong composition i.e. no containment reference between PO and Item
EObjects.
Basically there is a cross-document reference
So in this case there will be one poReource with poURI and an itemResource with
itemURI.
4. When we call rsourseSet.getReource(poURI) --> the ResourseSet will start traversing
the resource eobject-tree and load all eObjects. But for any references to objects in
itemResource , instead of traversing itemResource the ResourseSet will set the
references to Proxies (* an uninitialized instance of the actual target class * with the
actual URI).
When - po.getItem() - will be invoked, the proxies will be resolved and actual Item
EObjects will be loaded on demand.
8. How to get the objects modified during the last execute() / undo() / redo() ?
>> command.getAffectedObjects()
These objects should be used for selecting/highlighting the viewers
9.Some useful Commands :
>> Moving objects up - down in Viewer : MoveCommand
>> Replacing an object in multiplicity-many features : ReplaceCommand
>> Creating a duplicate object : CopyCommand
>> Create a new object and add it to a feature of EObject : CreateChildCommand
>> Delete an eobject from parent container along with all references : DeleteCommand
10. What is the role of Editing Domain ?
AdapterFactoryEditingDomain -- (i) creates command thru item provider, (ii)
maintaining editor's commandstack, (iii) maintaining resource set
11. Ecore Model Optimization "
>> If a particular reference is always -containment- and can never be cross-document;
then resolveProxies should be set to false
11. How to define a custom data type ?
>> We should not refer a highly complicated Java Class as data type.
>> Instead we should model the Java_Class as EClass and then create an EDtaType
where instanceClass should refer to that EClass.
12. How to maintain in-memory temporary ELists which need not be persisted ?
These model elements should be declared as - volatile, transient, non-changeable and
deived.
public EList getSpecialModelObjects(){
ArrayList specialModelObjects = new ArrayList();
for(... getmodelObjects() ... ){
5. if(...){
specialModelObjects.add();
}
}
return new ECoreEList.UnmodifiableEList(this, , specialComposites.siz(),
specialComposites.toArray());
}
13. What to do if you want to create a unique list which should contain elements of
a particular type ?
Elist locations = new EDataTypeUniqueEList(String.class, this,
EPO2Package.GLOBAL_ADDRESS_LOCTION);
14. How to suppress creation of eobjects ?
Simply clear the GenModel property – “Root Extends Interface” –
15. How to control the command's appearance i.e. decorate the actions ?
The item provider is an IchangeNotifier to support DECORATOR pattern – an
ItemProviderDecorator registers itself as a listener for the Item Provider that it
decorates.
The commands need to implement CommandActionDelegate interface to provide
implementation for retrieving images and labels.
16. How to use custom adapter factories ?
Create a ComposedAdapterFactory and include the item provider for the classes that are
not part of the model along with the regular item provider factories.
17. How to refresh a viewer and set the selection on particular elements ?
editingDomain.getCommandStack().addCommandStackListener( new
CommandStacklistener() {
public void commandStackChanged(final EventObject event) {
getContainer().getDisplay().asyncExec( new Runnable() {
public void run() {
firePropertyChange(IEditorPart.PROP_Dirty);
Command mostRecentCommand =
((CommandStack)event.getSource()).getMostRecentCommand();
if (mostRecentCommand != null) {
setSelectionToViewer(mostRecentCommand.getAffectedObjects());
} // --- set selection
6. if (propertySheetPage != null && !propertySheetPage.getControl().isDisposed())
{
propertySheetPage.refresh();
}
);
});
18. How to use the Item Provider Factories as Label and Content Providers ?
>> selectionViewer.setContentProvider(new
AdapterFactoryContentProvider(composedAdapterFactory));
>> selectionViewer.setLabelProvider(new
AdapterFactoryLabelProvider(composedAdapterFactory));
19. Remember Action Bar Contributor – invokes the child-descriptors as specified by
the item-providers to create the actions.
20. How to register a custom Resource Factory against a file type ?
resourceSet.getRespourceFactoryRegistry().getExtensionToFactoryMap().put(“substvar
”, new SvarResourceFactoryImpl())
21. While creating URI if the file path contains space, use encoding mechanism.
URI.createURI(encoding_flag) …
18. How to encrypt/decrypt the stream data ?
Save/Load OPTION_CIPHER, OPTION_ZIP
(URIConverter.Cipher) DESCipherImpl → CryptoCipherImpl
19. How to query XML data using EMF ?
XMLResource resource = (XmlResource)rs.createResource(
URI.createPlatformResourceURI(“/project/sample.xml”, true));
resource.getContents().add(supplier);
Map options = new HashMap();
options.put(XMLResource.OPTION_KEEP_DEFAULT_CONTENT, Boolean.TRUE);
Document document = resource.save(null, options, null);
DOMHelper helper = resource.getDOMHelper();
NodeList nodes = XpathAPI.selectNodeList(document, query)
for(...) {
Node node = nodes.item(i)
7. Item item = (Item)helper.getValue(node);
}
20. How to serialize and load qname correctly ?
A. First we need to set the option OPTION_EXTENDED_META_DATA as true for
loading and saving element in the MyResourceFactoryImpl#createResource() :
XMLResource result = new XMLResourceImpl(uri);
result.getDefaultSaveOptions().put(XMLResource.OPTION_EXTENDED_META_DA
TA, Boolean.TRUE);
result.getDefaultLoadOptions().put(XMLResource.OPTION_EXTENDED_META_DA
TA, Boolean.TRUE);
B. Always use - AddCommand / RemoveCommand / SetCommand /
EMFOpertionCommand / EMFCommandOperation - instead of RecordingCommand ;
because RecordingCommand does not load / store QNames properly while
undoing/redoing. I have raised a Bug in Eclipse that I shall post here soon …
21. How to load emf resource from a plugin jar ?
Lets assume that an emf resource file has been contributed to an extension-point.
Now while reading the extension points; one can find out the name of the plugin.
IConfigurationElement[] elements = extensions[i].getConfigurationElements();
IContributor contributor = elements[j].getContributor();
String bundleId = contributor.getName();
URI uri = URI.createPlatformPluginURI("/" + bundleId + "/"+ filePath, true);
Resource resource = ResourceSetFactory.getResourceSet().createResource(uri);
resource .load(null);
EList contents = resource .getContents();
22. How to customize the copy functionality of EcoreUtil ?
EcoreUtil.Copier testCopier = new Ecoreutil.Copier() {
protected void copyContainment(EReference eRef, EObject eObj, EObject copyEObj) {
// skip the unwanted feature
if(eRef != unwanted_feature) {
super.copyContainment(eRef, eObj, copyEobj);
}