Group items tagged

Data, Context and Interaction (DCI) is a paradigm used in computer software to program systems of communicating objects. Its goals are: To improve the readability of object-oriented code by giving system behavior first-class status; To cleanly separate code for rapidly changing system behavior (what the system does) from code for slowly changing domain knowledge (what the system is), instead of combining both in one class interface; To help software developers reason about system-level state and behavior instead of only object state and behavior; To support an object style of thinking that is close to peoples' mental models, rather than the class style of thinking that overshadowed object thinking early in the history of object-oriented programming languages. The paradigm separates the domain model (Data) from Use cases (Context) and Roles that objects play (Interaction). DCI is complementary to Model-view-controller (MVC). MVC as a pattern language is still used to separate the data and its processing from presentation. DCI was invented by Trygve Reenskaug, also the inventor of MVC. The current formulation of DCI is mostly the work of Reenskaug and James O. Coplien.

"Qworum defines a new type of service that is used for modularizing web applications. Qworum services are interactive, just like conventional websites. In addition, Qworum services are callable, much like traditional RPC services. "

"Community Dashboard Framework (CDF) is a project that allows you to create friendly, powerful, fully featured dashboards on top of the Pentaho BI server. Former Pentaho dashboards had several drawbacks from a developer's point of view. The developing process was awkward, it required know-how of web technologies and programming languages, and basically it was time-consuming. CDF emerged as a need for a framework that overcame all those difficulties. The final result is a powerful framework featuring the following: . It is based on Open Source technologies. . It separates logic (JavaScript) of the presentation (HTML, CSS) . It features a life cycle with components interacting with each other . It uses AJAX . It is extensible, which gives the users a high level of customization: . Advanced users can extend the library of components. . They also can insert their own snippets of JavaScript and jQuery code. CDF can be used: . As part of a Pentaho solution. This is the most common scenario. . In a standalone mode as an alternative to the Pentaho User Console . Integrated with Portlets, PHP applications, intranet portals and even desktop applications. "

"Besides a rich user interaction many applications need to display a big amount of data sets as diagrams or reports as part of their applications. In order to bridge the gap the BIRT project was created as part of the eclipse ecosystem. BIRT is an open source Eclipse-based reporting system that integrates with your Java/J2EE application to produce compelling reports. That BIRT integrates well with classic RCP applications is a well known fact. But the need for rich internet applications is still growing. And here the RAP comes into play. As a platform for developing Web 2.0 applications with the same patterns as for RCP it paves the way for single sourcing applications running on both platforms. In this talk we will show how to integrate diagrams and reports known from BIRT into RAP applications. Topics covered include how to setup the environment to let BIRT and RAP play well together. In addition we will give advices how to use the reports inside RAP applications and which problems may arise. As a final outcome of we will know everything to bring reporting capabilities into RAP applications. "

"Support for mixed Scala/Java projects Thumb Support for mixed Scala/Java projects and any combination of Scala/Java project dependencies, allowing straightforward references from Scala to Java and vice versa. Editing Thumb A Scala editor with syntax highlighting, code completion, inferred type hovers, hyperlinking to definitions, error markers and more. Debugging Thumb Incremental compilation, application launching with integrated debugger, hyperlinking from stacktraces to Scala source, interactive console. Navigation Thumb Project and source navigation including Scala support in the Package explorer view with embedded outline, outline view, quick outline, open type, open type hierarchy."

"OpenI is an open source Business Intelligence application for on-demand or SaaS deployments. Based on J2EE, OpenI is an out-of-box solution to easily visualize data from OLAP and relational databases, where users intuitively build and publish interactive reports, analyses, and dashboards."

"Apache Camel is a powerful open source integration framework based on known Enterprise Integration Patterns with powerful Bean Integration. Camel lets you create the Enterprise Integration Patterns to implement routing and mediation rules in either a Java based Domain Specific Language (or Fluent API), via Spring based Xml Configuration files or via the Scala DSL. This means you get smart completion of routing rules in your IDE whether in your Java, Scala or XML editor. Apache Camel uses URIs so that it can easily work directly with any kind of Transport or messaging model such as HTTP, ActiveMQ, JMS, JBI, SCA, MINA or CXF Bus API together with working with pluggable Data Format options. Apache Camel is a small library which has minimal dependencies for easy embedding in any Java application. Apache Camel lets you work with the same API regardless which kind of Transport used, so learn the API once and you will be able to interact with all the Components that is provided out-of-the-box. Apache Camel has powerful Bean Binding and integrated seamless with popular frameworks such as Spring and Guice. Apache Camel has extensive Testing support allowing you to easily unit test your routes. Apache Camel can be used as a routing and mediation engine for the following projects: * Apache ServiceMix which is the most popular and powerful distributed open source ESB and JBI container * Apache ActiveMQ which is the most popular and powerful open source message broker * Apache CXF which is a smart web services suite (JAX-WS) * Apache MINA a networking framework"

"m2eclipse provides comprehensive Maven integration for Eclipse. You can use m2eclipse to manage both simple and multi-module Maven projects, execute Maven builds via the Eclipse interface, and interact with Maven repositories. m2eclipse makes development easier by integrating data from a project's Object Model with Eclipse IDE features. With m2eclipse, you can use Maven within Eclipse in a natural and intuitive interface. Installing m2eclipse is straightforward, simply point your Eclipse IDE installation to the Eclipse Update Sites. For instructions, prerequisites, and a demonstration video, go to Installing m2eclipse. Once you've installed m2eclipse, you can watch our m2eclipse videos to learn how to install m2eclipse and create your first Maven project with m2eclipse. For a more complete introduction to m2eclipse, Developing with Eclipse and Maven. Developing with Eclipse and Maven is a free, online book, which provides comprehensive documentation for the m2eclipse Maven integration for Eclipse."

The Java Content Repository (JCR) standard, which is based on the Java Specification Requests JSR170 (version 1.0) and JSR 283 (version 2.0), provides a Java-centric object-oriented storage API specifically targeted at content management scenarios. The JCR is not a content management system or a full-fledged content management system API, but rather a content repository API. A content repository provides a common API for all content-driven applications and CMS components, which require access to the content. It provides methods to read, write, and query content. The primary motivation of the JCR standard is to provide a standard and vendor-neutral programmatic interface for content repositories, allowing applications of multiple vendors to interact efficiently.

"MultiTail lets you view one or multiple files like the original tail program. The difference is that it creates multiple windows on your console (with ncurses). It can also monitor wildcards: if another file matching the wildcard has a more recent modification date, it will automatically switch to that file. That way you can, for example, monitor a complete directory of files. Merging of 2 or even more logfiles is possible. It can also use colors while displaying the logfiles (through regular expressions), for faster recognition of what is important and what not. It can also filter lines (again with regular expressions). It has interactive menus for editing given regular expressions and deleting and adding windows. One can also have windows with the output of shell scripts and other software. When viewing the output of external software, MultiTail can mimic the functionality of tools like 'watch' and such."

" Given that web service invocations are always remote across the internet, developing rigorous and responsive web service client applications has always been a challenge for architects and developers working with SOA. JAX-WS 2.0 comes with one effective solution to this problem: asynchronous web service invocation, with which a web service client may interact with a web service in a non-blocking, asynchronous approach. In this article, we will provide an exposition of this technology with examples built upon the reference implementation. Our examples utilize JDK 5.0, JAX-WS 2.0 reference implementation (RI), and Tomcat 5.5. JAX-WS 2.0 requires JAXP 1.3. To replace the JAXP 1.2 released with JDK 5.0 with this newer version, one approach is to download the JAXP 1.3 RI, and copy the endorsed directory under /lib of its installation home to %JAVA_HOME%/jre/lib. We need to copy the jaxp-api.jar of JAXP 1.3 RI to %JAVA_HOME%/jre/lib/endorsed as well. To make Tomcat 5.5 work with JAX-WS 2.0, readers need to copy all the .jar files under the /lib directory of the JAX-WS 2.0 RI installation to the %CATALINA_HOME%/shared/lib directory. As of this writing (in addition to Tomcat 5.5), Sun Java System Application Server 9.0, GlassFish, and Celtix also support JAX-WS 2.0. xFire is in the process of completing its implementation of this specification. Since asynchronous web service invocation in JAX-WS 2.0 is built upon the concurrent programming support in JDK 5.0 introduced with the java.util.concurrent package, we will start from there."

"Clojure is a dynamic programming language that targets the Java Virtual Machine (and the CLR ). It is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming. Clojure is a compiled language - it compiles directly to JVM bytecode, yet remains completely dynamic. Every feature supported by Clojure is supported at runtime. Clojure provides easy access to the Java frameworks, with optional type hints and type inference, to ensure that calls to Java can avoid reflection. Clojure is a dialect of Lisp, and shares with Lisp the code-as-data philosophy and a powerful macro system. Clojure is predominantly a functional programming language, and features a rich set of immutable, persistent data structures. When mutable state is needed, Clojure offers a software transactional memory system and reactive Agent system that ensure clean, correct, multithreaded designs. I hope you find Clojure's combination of facilities elegant, powerful, practical and fun to use."

Front End Development or Client-Side Development is the practice of coding in technologies like HTML, CSS, and Javascript in a website. The practice involves converting Data into a Graphical Interface for a user to view and interact. Growth in Front-end development is excellent and there are plenteous opportunities available, especially because companies now want their customers to have a good experience while using their Web applications. Want to get hired as a Front End Developer in 2019? Acquire skills in Front End Development, Build live Projects and Get Guaranteed Interviews with edWisor.

AJAX allows you to send only important information to the server not the entire page. So only valuable data from the client side is routed to the server side. It makes your application interactive and faster.