Developer's Guide for Oracle Jdeveloper Extensions
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Red Hat Fuse 7.5 Apache Karaf Transaction Guide
Red Hat Fuse 7.5 Apache Karaf Transaction Guide Writing transactional applications for the Apache Karaf container Last Updated: 2020-02-21 Red Hat Fuse 7.5 Apache Karaf Transaction Guide Writing transactional applications for the Apache Karaf container Legal Notice Copyright © 2020 Red Hat, Inc. The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution–Share Alike 3.0 Unported license ("CC-BY-SA"). An explanation of CC-BY-SA is available at http://creativecommons.org/licenses/by-sa/3.0/ . In accordance with CC-BY-SA, if you distribute this document or an adaptation of it, you must provide the URL for the original version. Red Hat, as the licensor of this document, waives the right to enforce, and agrees not to assert, Section 4d of CC-BY-SA to the fullest extent permitted by applicable law. Red Hat, Red Hat Enterprise Linux, the Shadowman logo, the Red Hat logo, JBoss, OpenShift, Fedora, the Infinity logo, and RHCE are trademarks of Red Hat, Inc., registered in the United States and other countries. Linux ® is the registered trademark of Linus Torvalds in the United States and other countries. Java ® is a registered trademark of Oracle and/or its affiliates. XFS ® is a trademark of Silicon Graphics International Corp. or its subsidiaries in the United States and/or other countries. MySQL ® is a registered trademark of MySQL AB in the United States, the European Union and other countries. Node.js ® is an official trademark of Joyent. Red Hat is not formally related to or endorsed by the official Joyent Node.js open source or commercial project. -
Eclipse (Software) 1 Eclipse (Software)
Eclipse (software) 1 Eclipse (software) Eclipse Screenshot of Eclipse 3.6 Developer(s) Free and open source software community Stable release 3.6.2 Helios / 25 February 2011 Preview release 3.7M6 / 10 March 2011 Development status Active Written in Java Operating system Cross-platform: Linux, Mac OS X, Solaris, Windows Platform Java SE, Standard Widget Toolkit Available in Multilingual Type Software development License Eclipse Public License Website [1] Eclipse is a multi-language software development environment comprising an integrated development environment (IDE) and an extensible plug-in system. It is written mostly in Java and can be used to develop applications in Java and, by means of various plug-ins, other programming languages including Ada, C, C++, COBOL, Perl, PHP, Python, Ruby (including Ruby on Rails framework), Scala, Clojure, and Scheme. The IDE is often called Eclipse ADT for Ada, Eclipse CDT for C/C++, Eclipse JDT for Java, and Eclipse PDT for PHP. The initial codebase originated from VisualAge.[2] In its default form it is meant for Java developers, consisting of the Java Development Tools (JDT). Users can extend its abilities by installing plug-ins written for the Eclipse software framework, such as development toolkits for other programming languages, and can write and contribute their own plug-in modules. Released under the terms of the Eclipse Public License, Eclipse is free and open source software. It was one of the first IDEs to run under GNU Classpath and it runs without issues under IcedTea. Eclipse (software) 2 Architecture Eclipse employs plug-ins in order to provide all of its functionality on top of (and including) the runtime system, in contrast to some other applications where functionality is typically hard coded. -
Jpype Documentation Release 0.7.0
JPype Documentation Release 0.7.0 Steve Menard, Luis Nell and others Jul 22, 2019 Contents 1 Parts of the documentation 3 1.1 Installation................................................3 1.2 User Guide................................................6 1.3 QuickStart Guide............................................. 17 1.4 API Reference.............................................. 27 1.5 JImport.................................................. 34 1.6 Changelog................................................ 36 1.7 Developer Guide............................................. 40 2 Indices and tables 53 Python Module Index 55 Index 57 i ii JPype Documentation, Release 0.7.0 JPype is a Python module to provide full access to Java from within Python. It allows Python to make use of Java only libraries, exploring and visualization of Java structures, development and testing of Java libraries, scientific computing, and much more. By gaining the best of both worlds using Python for rapid prototyping and Java for strong typed production code, JPype provides a powerful environment for engineering and code development. This is achieved not through re-implementing Python, as Jython/JPython has done, but rather through interfacing at the native level in both virtual machines. This shared memory based approach achieves decent computing preformance, while providing the access to the entirety of CPython and Java libraries. Contents 1 JPype Documentation, Release 0.7.0 2 Contents CHAPTER 1 Parts of the documentation 1.1 Installation JPype is available either as a pre-compiled binary for Anaconda, or may be build from source though several methods. 1.1.1 Binary Install JPype can be installed as pre-compiled binary if you are using the Anaconda Python stack. Binaries are available for Linux, OSX, ad windows are available on conda-forge. -
Chargeurs De Classes Java (Classloader)
http://membres-liglab.imag.fr/donsez/cours Chargeurs de classes Java (ClassLoader) Didier Donsez Université Joseph Fourier - Grenoble 1 PolyTech’Grenoble - LIG/ADELE [email protected] [email protected] 06/06/2009 Licence Cette présentation est couverte par le contrat Creative Commons By NC ND http://creativecommons.org/licenses/by-nc-nd/2.0/fr/ Didier Donsez, 2002-2009, ClassLoaders Donsez,2002-2009, Didier 2 06/06/2009 Kequoi ca un chargeur de classes ? Son rôle est 1) de charger le bytecode d’une classe depuis un artéfact (archive Java, répertoire distant …) 2) communiquer le bytecode à la machine virtuelle Didier Donsez, 2002-2009, ClassLoaders Donsez,2002-2009, Didier 4 06/06/2009 Pourquoi utiliser les chargeurs de classes Classes non présentes dans le CLASSPATH URLClassLoader, AppletClassLoader, … ex: WEB-INF/classes et WEB-INF/lib d’une WebApp ex: CODEBASE d’une applet, … Déchargement et Mise à jour du bytecode lors de l’exécution de la VM (runtime) Chargeurs de OSGi Modification du ByteCode à la volée au chargement Instrumentation AOP (Aspect Oriented Programming) BCEL, ASM Protection Chargement de ressources associées à la classe properties, images, … Recherche de Service Providers ou de Drivers META-INF/services (java.util.ServiceLoader de 6.0) Didier Donsez, 2002-2009, ClassLoaders Donsez,2002-2009, Didier 5 06/06/2009 Principe de la délégation (Java 2) Tout chargeur a un chargeur parent sauf le chargeur primordial Tout chargeur vérifie si la classe à charger n’a pas déjà été chargée par un chargeur -
How Java Works JIT, Just in Time Compiler Loading .Class Files The
How Java works JIT, Just In Time Compiler ● The java compiler takes a .java file and generates a .class file ● JVM ultimately translates bytecode into native code, each time ➤ The .class file contains Java bytecodes, the assembler the same bytecodes are processed, the translation into native language for Java programs code must be made ➤ Bytecodes are executed in a JVM (java virtual machine), ➤ If we can cache translated code we can avoid re-translating the valid bytecodes are specified by Sun the same bytecode sequence • What if third parties create platform/OS specific codes? ➤ Why not just translate the entire .java program into native code? ● The JVM interprets the bytecodes ➤ JVM is platform/OS specific, must ultimately run the code ● Still need the JVM, the JIT works in conjunction with the JVM, not in place of it ➤ Different JVMs will have different performance, JITs are part of the overall JDK/Java performance ● How are classes loaded into the JVM? Can this be thwarted? Duke CPS 108 14.1 Duke CPS 108 14.2 Loading .class files The ClassLoader ● The bytecode verifier “proves theorems” about the bytecodes ● The “Primordial” loader is built-in to the JVM being loaded into the JVM ➤ Sometimes called the “default” loader, but it’s not ➤ These bytecodes may come from a non-Java source, e.g., extensible or customizable the way other loaders are compile Ada into bytecodes (why?) ➤ Loads classes from the platform on which the JVM runs ● This verification is a static analysis of properties such as: (what are loader and JVM written in?) ➤ -
Netbeans RCP by John Kostaras Open Conference Crete 2012 Agenda
NetBeans RCP By John Kostaras Open Conference Crete 2012 Agenda ∗ Introduction ∗ Module System ∗ Lookups ∗ Window System ∗ Explorer Views ∗ Nodes ∗ Action System ∗ Dialogs and Wizards ∗ Options & Settings ∗ FileSystem & DataSystem ∗ Visual Library ∗ Internationalisation ∗ Help System ∗ Hands on 15/9/2012 NetBeans RCP - John Kostaras - JavaCrete 2012 2 Prerequisites ∗ NetBeans 7.2 ( http://www.netbeans.org ) ∗ Todo app (http://netbeans.org/community/magazine/code/nb- completeapp.zip ) 15/9/2012 NetBeans RCP - John Kostaras - JavaCrete 2012 3 Introduction NetBeans RCP -John Kostaras -JavaCrete 2012 4 15/9/2012 What is NetBeans Rich Client Platform? ∗ Set of APIs and Libraries ∗ Framework and Module system ∗ Generic Desktop Application ∗ Platform modules + IDE Modules = NetBeans IDE ∗ Platform modules + your modules = Your Application ∗ Provides services that almost all Desktop Applications need ∗ Saves development time ∗ Allows you to concentrate on the actual business logic ∗ NetBeans RCP Application server for the desktop ∗ Improves development and maintainability through modularization 15/9/2012 NetBeans RCP - John Kostaras - JavaCrete 2012 5 Benefits ∗ Shorter development time ∗ Consistent User Interface ∗ Updateable (Update center / Webstart) ∗ Platform Independence (Swing + platform specific launchers) ∗ Modularity 15/9/2012 NetBeans RCP - John Kostaras - JavaCrete 2012 6 Hands-on NetBeans RCP - John Kostaras - JavaCrete 2012 7 15/9/2012 TodoRCP ∗ A todo list application: "A complete App using NetBeans 5" by Fernando Lozano http://netbeans.org/download/magazine/01/nb01_completeap -
Introduction Background Scope
Copyright Oracle Corporation and VMware Inc, 2010 Enterprise Modules Project (Gemini) Proposal The Enterprise Modules Project is a proposed open source project under the Eclipse Runtime Project. This project is in the Project Proposal Phase (as defined in the Eclipse Development Process). Introduction The intent of the "Enterprise Modules" project, nicknamed Gemini, is to provide a home for subprojects that integrate existing Java enterprise technologies into module-based platforms, and/or that implement enterprise specifications on module-based platforms. Gemini will be a parent ("container project" as defined by the Eclipse Development Process) for several subprojects ("operating projects" as defined by the Eclipse Development Process) that provide the specific implementations/integrations. Gemini will itself be a subproject of the Eclipse Runtime Project and will strive to leverage functionality of existing projects. We encourage and request additional participation and input from any and all interested parties in the Eclipse community. Background Enterprise applications are often complex, involving multiple layers and many actors. Even though every application has a different purpose and usage, there are a number of features and behavioral requirements in the underlying infrastructure that are common among many of those seemingly dissimilar applications. For a long time, not only did developers need to create the vertical business logic of the application, but they also had to create the platform plumbing on which the application could run. Enterprise Java standards made great strides in defining specifications describing how these layers could be implemented, exported and used. They have since become the assumed and ubiquitous underpinnings of the majority of enterprise Java systems. -
An Empirical Evaluation of Osgi Dependencies Best Practices in the Eclipse IDE Lina Ochoa, Thomas Degueule, Jurgen Vinju
An Empirical Evaluation of OSGi Dependencies Best Practices in the Eclipse IDE Lina Ochoa, Thomas Degueule, Jurgen Vinju To cite this version: Lina Ochoa, Thomas Degueule, Jurgen Vinju. An Empirical Evaluation of OSGi Dependencies Best Practices in the Eclipse IDE. 15th International Conference on Mining Software Repositories, May 2018, Gothenburg, Sweden. 10.1145/3196398.3196416. hal-01740131 HAL Id: hal-01740131 https://hal.archives-ouvertes.fr/hal-01740131 Submitted on 27 Mar 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. An Empirical Evaluation of OSGi Dependencies Best Practices in the Eclipse IDE Lina Ochoa Thomas Degueule Jurgen Vinju Centrum Wiskunde & Informatica Centrum Wiskunde & Informatica Centrum Wiskunde & Informatica Amsterdam, Netherlands Amsterdam, Netherlands Amsterdam, Netherlands [email protected] [email protected] Eindhoven University of Technology Eindhoven, Netherlands [email protected] ABSTRACT that can be implemented and tested independently. This also fos- OSGi is a module system and service framework that aims to fill ters reuse by allowing software components to be reused from one Java’s lack of support for modular development. Using OSGi, devel- system to the other, or even to be substituted by one another pro- opers divide software into multiple bundles that declare constrained vided that they satisfy the appropriate interface expected by a client. -
154 Core Jetty
#154 CONTENTS INCLUDE: n Jetty Architecture n Configuring Jetty n Basic Usage Jetty n Advanced Usage n Using with Web Frameworks A Lightweight, Open-Source Web Server and Servlet Container n Running Standalone By Jos Dirksen n Integration with Maven and more... Visit refcardz.com SelectChannelConnector Uses NIO buffers with a non-blocking threading ABOUT JETTY model. Threads are only allocated to connec- tions with requests. Use when there are many connections that have idle periods. Jetty, an open-source web server hosted by the Eclipse foundation, is a full-fledged HTTP server and Servlet container that can be easily SslSocketConnector SSL version of the SocketConnector configured to serve static and dynamic content. You can very easily SslSelectChannelConnector SSL version of the SelectChannelConnector embed Jetty into your own applications using Java or XML-based AJPConnector Use for connections from Apache modules: configuration or run Jetty directly from Maven. Additionally, you can use mod_proxy_ajp and mod_jk. Jetty in many different high-demand areas such as Yahoo Hadoop Cluster, HTTPSPDYServerConnector Supports the SPDY protocol and performs SPDY Google AppEngine, and Yahoo! Zimbra. to HTTP conversion. If SPDY is not negotiated, This RefCard refers primarily to Jetty 8; however, most of the configuration falls back to HTTPS. Get More Refcardz! Refcardz! Get More discussed will work on Jetty 7. Handler JETTY ARCHITECTURE The handler is the component that deals with requests received by a connector. There are three types of handlers in Jetty. It’s important to understand the architecture behind Jetty. The main • Coordinating handlers route requests to other handlers. architecture of Jetty consists out of the following four components. -
Kawa - Compiling Dynamic Languages to the Java VM
Kawa - Compiling Dynamic Languages to the Java VM Per Bothner Cygnus Solutions 1325 Chesapeake Terrace Sunnyvale CA 94089, USA <[email protected]> Abstract: in a project in conjunction with Java. A language im- plemented on top of Java gives programmers many of Many are interested in Java for its portable bytecodes the extra-linguistic benefits of Java, including libraries, and extensive libraries, but prefer a different language, portable bytecodes, web applets, and the existing efforts especially for scripting. People have implemented other to improve Java implementations and tools. languages using an interpreter (which is slow), or by translating into Java source (with poor responsiveness The Kawa toolkit supports compiling and running vari- for eval). Kawa uses an interpreter only for “simple” ous languages on the Java Virtual Machine. Currently, expressions; all non-trivial expressions (such as function Scheme is fully supported (except for a few difficult fea- definitions) are compiled into Java bytecodes, which are tures discussed later). An implementation of ECMA- emitted into an in-memory byte array. This can be saved Script is coming along, but at the time of writing it is for later, or quickly loaded using the Java ClassLoader. not usable. Kawa is intended to be a framework that supports mul- Scheme [R RS] is a simple yet powerful language. It tiple source languages. Currently, it only supports is a non-pure functional language (i.e. it has first-class Scheme, which is a lexically-scoped language in the Lisp functions, lexical scoping, non-lazy evaluation, and side family. The Kawa dialect of Scheme implements almost effects). -
Scaling JPA Applications with Toplink Grid
<Insert Picture Here> @ TopLink Grid: Scaling JPA Applications with Coherence Shaun Smith, Principal Product Manager Oracle Server Technologies, TopLink Copyright © 2010 Oracle Java Persistence: The Problem Space Customer <customer id=“…”> <name>…</name> id: int JAXB/SDO … name: String </contact-info> creditRating: int </customer> Java XML JPA CUST ID NAME C_RATING JPA: Java Persistence API Relational JAXB: Java Architecture for XML Binding SDO: Service Data Objects EclipseLink Project • Provides JPA, JAXB, SDO, DBWS, and EIS persistence services • Open source Eclipse project • Project Lead by Oracle • Founded by Oracle with the contribution of full TopLink source code and tests • Based upon product with 12+ years of commercial usage EclipseLink JPA • JPA 1.0 compliant with advanced persistence • JPA 2.0 Reference Implementation (JSR 317) • Supports Java EE, Java SE, Web, Spring, and OSGi • Supports all leading RDMS with platform specific features • Best JPA for the Oracle Database—supporting advanced features • Extensible and pluggable • Key infrastructure: • Caching, Locking, Query Framework, Mapping, … • … plus many valuable advanced features Oracle TopLink 11gR1 • Oracle’s Enterprise Java Persistence Framework • Includes open source EclipseLink with Commercial Support • Certified on WebLogic and redistributed by Oracle as part of TopLink product • TopLink Grid: JPA integration with Coherence • Included in WebLogic Server • Tooling Support in JDeveloper and Eclipse Example JPA Client Code … Mechanics of a JPA Application Step 1 Step 2 Step 3 Application Logic Application Logic Application Logic Create/ Modify Entities JPA JPA JPA Read Insert/ Entities Update Entities JPA with Cache TX n TX n+1 Application Logic Application Logic Cache hits JPA avoid object build cost ReadTX Commit Entities Scaling Java Persistence Java Scaling Application Application JPA Application Application Application Application Application JPA Application Application Application . -
CICS TS for Z/OS: Java Applications in CICS Chapter 1
CICS Transaction Server for z/OS 5.4 Java Applications in CICS IBM Note Before using this information and the product it supports, read the information in “Notices” on page 277. This edition applies to the IBM CICS® Transaction Server for z/OS® Version 5 Release 4 (product number 5655-Y04) and to all subsequent releases and modifications until otherwise indicated in new editions. © Copyright International Business Machines Corporation 1974, 2020. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents About this PDF.....................................................................................................vii Chapter 1. CICS and Java...................................................................................... 1 Java support in CICS....................................................................................................................................1 The OSGi Service Platform..................................................................................................................... 3 JVM server runtime environment...........................................................................................................4 JVM profiles............................................................................................................................................ 6 Structure of a JVM.................................................................................................................................. 7