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"Jsvc is a set of libraries and applications for making Java applications run on UNIX more easily. Jsvc allows the application (e.g. Tomcat) to perform some privileged operations as root (e.g. bind to a port < 1024), and then switch identity to a non-privileged user. It can run on Win32 via the Cygwin emulation layer (see Cygwin for more information), however Win32 users may prefer to use procrun instead, which allows the application to run as a Windows Service. The sources are located in the src/native/unix subdirectory. In the future APR may be used to provide more portable platform support. "

"An "executable" UML model is one with a behavioral specification detailed enough that it can effectively be "run" as a program. This can be extremely valuable in order to test and validate the model, independently of the one or more implementation platforms to which the system being modeled will ultimately be deployed. Or, in some cases, the model itself can actually be run as the production implementation, given an appropriate execution environment. There have been model execution tools and environments for years, even before UML. However, each tool defined its own semantics for model execution, often including a proprietary action language, and models developed in one tool could not be interchanged with or interoperate with models developed in another tool. A previous post described Stephen Mellor's quest of more than a decade to change this through OMG standards for precise UML model execution semantics and a UML action language. In 2008, this led to the adoption of the Foundational UML (fUML) specification, providing the first precise operational and base semantics for a subset of UML encompassing most object-oriented and activity modeling. The fUML specification still did not provide any new concrete surface syntax, however, tying the precise semantics solely to the existing abstract syntax model of UML. This meant that, in order to fully specify a detailed behavior in a UML model - say the effect behavior of a transition on a state machine or the method of an operation of a class - one still had to draw a very detailed, graphical activity diagram. "

This page contains the latest compiled builds of Pentaho Data Integration (Kettle) community edition.  The builds are based on source code downloaded daily from SVN. Why download these snapshot builds? You want the latest version - to get the latest features in PDI. You want a more stable version - PDI point releases (e.g. 4.0.1) can include important bug fixes - see the PDI JIRA system for a full list of known issues. You need a bug fixed - You're struggling with a critical bug which has been fixed in a more recent version. To save time - You haven't got the time and/or inclination to learn about how to download PDI from SVN and build your own version.

The previous sections have extensively used the CND notation to illustrate the examples. Now that the most important concepts have been demonstrated, this section will give an in-depth overview of the CND. JSR 283 further defines an XML-based format for defining node type definitions, however, it has not been finalized yet at the time of writing. A CND file contains a series of namespace declarations, node type definitions, as well as comments which are denoted with a double slash (//).

Singleton pattern is one of the most common patterns available and it's also used heavily in Java. This is also one of my favorite interview question and has lots of interesting follow-up to digg into details , this not only check the knowledge of design pattern but also check coding , multithreading aspect which is very important while working for a real life application.

"Apache Tuscany simplifies the task of developing SOA solutions by providing a comprehensive infrastructure for SOA development and management that is based on Service Component Architecture (SCA) standard. With SCA as it's foundation, Tuscany offers solution developers the following advantages: Provides a model for creating composite applications by defining the services in the fabric and their relationships with one another. The services can be implemented in any technology. Enables service developers to create reusable services that only contain business logic. Protocols are pushed out of business logic and are handled through pluggable bindings. This lowers development cost. Applications can easily adapt to infrastructure changes without recoding since protocols are handled via pluggable bindings and quality of services (transaction, security) are handled declaratively. Existing applications can work with new SCA compositions. This allows for incremental growth towards a more flexible architecture, outsourcing or providing services to others. In addition, Tuscany is integrated with various technologies and offers: a wide range of bindings (pluggable protocols) various component types including and not limited to Java, C++, BPEL, Spring and scripting an end to end service and data solution which includes support for Jaxb and SDO a lightweight runtime that works standalone or with other application servers a modular architecture that makes it easy to integrate with different technologies and to extend Integration with web20 technologies Apache Tuscany SCA is implemented in Java and C++ (referred to as Native)"

"Smooks is an extensible framework for building applications for processing XML and non XML data (CSV, EDI, Java etc) using Java. While Smooks can be used as a lightweight platform on which to build your own custom processing logic for a wide range of data formats, "out of the box" it comes with some very useful features that can be used individually, or seamlessly combined together: "

"The PHP/Java Bridge is an implementation of a streaming, XML-based network protocol, which can be used to connect a native script engine, for example PHP, Scheme or Python, with a Java virtual machine. It is up to 50 times faster than local RPC via SOAP, requires less resources on the web-server side. It is faster and more reliable than direct communication via the Java Native Interface, and it requires no additional components to invoke Java procedures from PHP or PHP procedures from Java. "

"This chapter introduces the Expression Language (also referred to as the EL), which provides an important mechanism for enabling the presentation layer (web pages) to communicate with the application logic (backing beans). The EL is used by both JavaServer Faces technology and JavaServer Pages (JSP) technology. The EL represents a union of the expression languages offered by JavaServer Faces technology and JSP technology."

" Over the past few years, and actually the past year, a lot of new initiatives have surfaced in the area of creating so called language workbenches - aiming at facilitating the definition and use of DSLs and code generation. We believe each of these has its own strengths and weaknesses, and none is 'the best' for every purpose. Still, a lot of people keep asking for the best workbench. Based on that, we are now planning to have a Language Workbench Competition, in which we will be able to compare the strengths and weaknesses of these workbenches based on solutions for a predefined set of cases. Keep an eye on this page for more details in the coming, as the cases are being defined and the possibilities of co-hosting this initative at Code Generation 2011 in Cambridge are being investigated."

" 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."

Welcome to Merit Campus. Merit Campus is a website which helps in learning and improving your programming skills using the Java programming language

A character which is not an alphabet or numeric character is called a special character. We should remove all the special characters from the string so that we can read the string clearly and fluently.

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The TensorFlow runtime is a cross-platform library. The system architecture which makes this combination of scale flexible.

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A pretty common request that I hear is how do you build a wizard in RichFaces. So, that's exactly what we are going to build. You come into a bar and on each table there is a screen via which you place an order. You click to start an order, a wizard is launched where you enter all the required information and place the order. We will also have the ability to view all placed orders. Additionally, we will be able to change the look and feel of the ordering screen using RichFaces' skinnability feature.

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Spring 3.0.5 is now released and comes with the fixes of more than 80 minor issues and provided some enhancements and improvements to the Spring Expression Language (SpEL), annotation support, and embedded databases.