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JSF and the “immediate” Attribute – Command Components

The immediate attribute in JSF is commonly misunderstood. If you don’t believe me, check out Stack Overflow. Part of the confusion is likely due to immediate being available on both input (i.e.. <h:inputText />) and command (i.e. <h:commandButton />) components, each of which affects the JSF lifecycle differently. Here is the standard JSF lifecycle: For the purposes of this article, ...

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Java 7 – The NIO File Revolution

Java 7 (“Project Coin”) has been out since July of last year. The additions with this release are useful, for example Try with resources – having closable resources handled automatically from try blocks, Strings in switch statements, multicatch for Exceptions and the ‘<>‘ operator for working with generics. The addition that everyone was anticipating the most, closures, has been deferred ...

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XML parsing using SaxParser with complete code

SAX parser use callback function (org.xml.sax.helpers.DefaultHandler) to informs clients of the XML document structure. You should extend DefaultHandler and override few methods to achieve xml parsing. The methods to override are startDocument() and endDocument() – Method called at the start and end of an XML document.  startElement() and endElement() – Method called at the start and end of a document ...

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Agile Before there was Agile: Egoless Programming and Step-by-Step

Two key ideas underlying modern Agile development practices. First, that work can be done more effectively by Whole Teams in which people work together collaboratively to design and build systems. They share code, the review each other’s work, they share ideas and problems and solutions, they share responsibility, they work closely with each other and communicate constantly with each other ...

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Best Of The Week – 2012 – W03

Hello guys, Time for the “Best Of The Week” links for the week that just passed. Here are some links that drew Java Code Geeks attention: * Best development tools in the cloud: In this article, the best cloud-based development tools are presented. Source Control, Agile project management, Collaboration, Continuous Integration and Automated Testing tools are discussed. Also check out Developing and ...

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GWT – Pros and Cons

I love JavaScript. With the advent of jQuery and Mootools, my love for JavaScript has only increased plenty-fold. Given a choice I would use either of the aforementioned frameworks for any web application I develop. But being in the service industry, time and again I have to succumb to the client’s pressure and work in their choice of technology – ...

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Domain-Driven Design Using Naked Objects

I just had a chance to read a newly released book, ‘Domain-Driven Design Using Naked Objects’ by Dan Haywood [http://www.pragprog.com/titles/dhnako] that provides an insight into the world of DDD. If nothing else, this book is for techies & management people alike. Although Naked Objects is covered as the implementation framework (to explain practically, all aspects of DDD), this book serves ...

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if – else coding style best practices

The following post is going to be an advanced curly-braces discussion with no right or wrong answer, just more “matter of taste”. It is about whether to put “else” (and other keywords, such as “catch”, “finally”) on a new line or not.             Some may write if (something) { doIt(); } else { dontDoIt(); } ...

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