The Java Specialists' Newsletter. Web-Harvest Project. Processing 1.0. Java. Esper: Event Stream Processing and Correlation. Published on ONJava.com ( See this if you're having trouble printing code examples by Thomas Bernhardt and Alexandre Vasseur 03/08/2007 Esper is an Event Stream Processing (ESP) and event correlation engine (CEP, Complex Event Processing).
Targeted to real-time Event Driven Architectures (EDA), Esper is capable of triggering custom actions written as Plain Old Java Objects (POJO) when event conditions occur among event streams. It is designed for high-volume event correlation where millions of events coming in would make it impossible to store them all to later query them using classical database architecture. A tailored Event Query Language (EQL) allows expressing rich event conditions, correlation, possibly spanning time windows, thus minimizing the development effort required to set up a system that can react to complex situations.
Esper is the leading open source Event Stream processing solution, currently available under a GPL license. Programming. Integrate external tools and builders in Eclipse. Before you start About this tutorial One of the nice things about an IDE is that you can do the majority of your development tasks in one application — hence, integrated.
It takes time away from your work to have to switch from your IDE to another program. The more often you have to switch among applications, the more you have, well, just a DE. That's not much of a step above a text editor. Using launch configurations in Eclipse Europa, you can run external programs from within the development environment. This tutorial introduces two main scenarios: One uses the venerable Apache Ant build tool that comes with Eclipse; the other is an example of a script that executes from within the IDE.
Objectives In this tutorial, you learn how to build and use launch configurations. System requirements To get the most out of this tutorial, all you need is Eclipse Europa. Total Beginner Lessons. Lesson 1 -- Create Your First Java Class (11:39) Create Java project in Eclipse Create Java package Introduce classes and objects, naming conventions Write a simple Java class (Person) Lesson 2 -- Add Methods To Class (13:20) Introduce Eclipse Views and Perspectives Introduce Eclipse user interface -- drag / drop, context menus, help Add get and set methods to Person class Lesson 3 -- Use Eclipse Scrapbook (12:33) Introduction to Java Programming. Welcome to Migrate4j. David Fischer's Java Programming Examples: Capture Video from Lo.
This example program will capture the video and audio stream from a Logitech QuickCam Pro 3000 USB camera for 10 seconds and stores it on a file, named "testcam.avi".
You can later use the microsoft windows media player to display this file. 100% written in Java, using the media framework library (JMF) from Sun. Tested on Windows 2000. With some minor modifications, this programm will also work for any other USB cameras. Purpose / Benefits100% Java.Non Windows/GUI based program ->> command line utility.May be used together with a scheduler and a local webserver to publish periodically live video fragments on the internet.Easy sourcecode and easy to understand: you may make your own modifications in a short time. Configuration Hint: perhaps you need a small change of the capture device. How to Modify the Input Devices or the Resoultion ?
Useful Links Last updated on 23. About the Author ....and just for fun... Free Java Tutorials. Java SE Desktop Technologies - Java Media Framework API (JMF) JMF Frame Grabber. Getting Java to take snapshots from your webcam or other video capture device is surprisingly easy. Here I will show you how to grab a frame from a webcam, overlay the current date and time, and save it to a PNG file. The reason everything is easy is because of Sun's Java Media Framework. This allows... ...audio, video and other time-based media to be added to applications and applets built on Java technology. This optional package, which can capture, playback, stream, and transcode multiple media formats, extends the Java 2 Platform, Standard Edition (J2SE) for multimedia developers by providing a powerful toolkit to develop scalable, cross-platform technology.
Installing JMF Installing the Java Media Framework is a doddle. First you need to download the JMF for your operating system. Once you've download the JMF you need to install it. Running The Code The code below is extremely basic and simply runs in the console (i.e. it is not graphical). The Code. Java, javscript,Free source code for the taking. Over five milli.
Welcome to Freewarejava.com, the place to find free Java applets. Java Interview Questions, Java Forums, Java Source codes, Free o. Java Tutorials - Table of Contents. Java Tutorials - Table of Contents Java Home Page 1 - Structure / Syntax Lexical StructureData TypesLiteral ConstantsVariables and ArraysOperators and ExpressionsConditions,Statements,Blocks 2 - Control Flow Conditional StatementsLoops and SwitchesContinue, Break and ReturnCommand Line ArgumentsProject: Basic ProblemsProject: Metric Converter.
Java Code Examples, Java Tips and Java Related Articles. Java Code Examples, Java Tips and Java Related Articles. ARToolkit. Import java.nio.ByteBuffer;import java.nio.IntBuffer; import javax.media.opengl.GL;import javax.media.opengl.GLAutoDrawable;import javax.media.opengl.GLCanvas;import javax.media.opengl.GLEventListener; VM Spec The Java Virtual Machine Instruction Set. A script enabled browser is required for this page to function properly Oracle Technology Network > Java SE > Java SE Documentation > Java SE Specifications Contact Us Report errors in JLS Report errors in JVMS.
Introduction to Programming in Java: An Interdisciplinary Approa. A textbook for a first course in computer science for the next generation of scientists and engineers Textbook.
Our textbook Introduction to Programming in Java [Amazon · Addison-Wesley] is an interdisciplinary approach to the traditional CS1 curriculum. We teach all of the classic elements of programming, using an "objects-in-the-middle" approach that emphasizes data abstraction. A key feature of the book is the manner in which we motivate each programming concept by examining its impact on specific applications, taken from fields ranging from materials science to genomics to astrophysics to internet commerce.
The book is organized around four stages of learning to program: Chapter 1: Elements of Programming introduces variables; assignment statements; built-in types of data; conditionals and loops; arrays; and input/output, including graphics and sound. JavaSpecialistInauguralWebinar-2010-04-16_640x480.mov (video/qui. J-javaresources.html?ca=dgr-twtrJ-Resourcesdth-JV from ibm.com - Since its introduction to the programming community as a whole in 1995, the Java platform has evolved far beyond the "applets everywhere" vision that early Java pundits and evangelists imagined a Java world to be like.
Instead, the Java world rose up to Swing, coalesced around servlets, rode that into J2EE, stumbled on EJB, sidestepped over to Spring and Hibernate, added generics and became more dynamic, then functionalized, and continues to grow in all sorts of interesting directions even as I write this. Which leaves the Java programmer who didn't grow up along with the language somewhat overwhelmed.
As a speaker, blogger, consultant, and mentor, I am frequently asked by junior and intermediate programmers working in the Java space for resources to help them master this wide, complex, seemingly endless world. The response was enormous (for which I thank all those who replied). With no further ceremony, let us proceed. Web sites and developer Web portals The list of Web sites (with URLs):