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Lucene is an Open Source, mature and high-performance Java search engine. It is highly flexible, and scalable from hundreds to millions of documents. Luke is a handy development and diagnostic tool, which accesses already existing Lucene indexes and allows you to display and modify their content in several ways: * browse by document number, or by term * view documents / copy to clipboard * retrieve a ranked list of most frequent terms * execute a search, and browse the results * analyze search results * selectively delete documents from the index * reconstruct the original document fields, edit them and re-insert to the index * optimize indexes * and much more... Recent versions of Luke are also extensible through plugins and scripting. I started this project because I needed a tool like this. I decided to distribute it under Open Source license to express my gratitude to the Lucene team for creating such a high-quality product. Lucene is one of the landmark proofs that Open Source paradigm can result in high-quality and free products.

SmartSprites will let you easily introduce and maintain CSS sprites in your designs. SmartSprites parses special directives you can insert into your original CSS to mark individual images to be turned into sprites. It then builds sprite images from the collected images and automatically inserts the required CSS properties into your style sheet, so that the sprites are used instead of the individual images. SmartSprites parses special directives you can insert into your original CSS to mark individual images to be turned into sprites. It then builds sprite images from the collected images and automatically inserts the required CSS properties to your style sheet, so that the sprites are used instead of the individual images. In other words, no tedious copying & pasting to your CSS when adding, removing or changing sprited images. Just work with your CSS and original images as usual and have SmartSprites automatically transform them to the sprite-powered version when necessary.

" Further talk about the overall approach to REST access in the Guvnor project expanded from the JIRA issue, ad hoc discussions on the dev list to Jevis Liu's "AtomPub Interface for Guvnor" proposal on the Drools community wikI. Taking off from where Michael Neale's original "Guvnor AtomPub Interface" started in 2008 and expanding into categories, metadata and other return types, this page became a rough, but working implementation specification. "

"Texo provides JPA annotations, model and template driven development technology powered by EMF for web application (WAR) development projects. Texo uses components currently present in the Eclipse Modeling Framework (EMF) and Eclipse Modeling Framework Technology (EMFT) projects. Texo is a proposed open source component in the Eclipse Modeling Framework Technology (EMFT) project. "

"So, we are going to look at a restful webservice that is going to generate XML. As you might know, we have the perfect JSR specification for that in the form of JAXB. The needed libraries are already available in Netbeans 6.8. And as you might have guessed, returning JAXB objects from a JAX-RS method is going to integrate naturally and take some strain from our shoulders. No need to marshal and unmarshal by ourself. "

"This page describes how you can get an extended WADL from your REST app. It aligns mostly with the extended-wadl-webapp sample and uses these features: Add additional doc tags to the WADL Create JAXB beans from xsd - you might also create the schema from your beans Add the grammars element that includes the xsd file from which JAXB beans were generated to the WADL Add javadoc from your resource classes to the WADL, using most of the supported javadoc tags For getting the extended WADL as described above these things have to be done: Configure the maven-jaxb-plugin to create JAXB beans from xsd - this is described here just to describe what's done in the sample. Add the application-doc.xml and application-grammars.xml to the build classpath Configure the maven-javadoc-plugin with the ResourceDoclet provided by the wadl-resourcedoc-doclet artifact to create the resource-doc.xml. Create a subclass of WadlGeneratorConfig that defines/configures the WadlGenerators to use Specify your custom WadlGeneratorConfig in the web.xml as the WadlGeneratorConfig"

When creating a REST api with Java EE 6 and JAX-RS there comes the time when you start thinking about security. In our case we were trying to set up HTTP Basic Auth for the REST api to identify users and keep them from deleting other peoples stuff. It took me a while to understand the different aspects of configuring HTTP Basic Auth when using GlassFish:

The goal of the Eclipse Scout project is making it easy to build distributed enterprise applications based on the Eclipse platform. It consists of a runtime framework providing transparent service communication between the client and backend part and is shipped with a rich set of common user interface components. The user interface is not built for a particular rendering technology but it encapsulates the core functionality into a headless model. GUI factories are available for rendering the client model into a particular target UI platform. SWT and Swing are supported out of the box and an AJAX GUI factory could be easily added. Developing Scout applications is supported by the Scout SDK, a plug-in set built on top of Eclipse PDE and Eclipse JDT. The Scout SDK works directly on the bare Java resources and assists the development task by providing an augmented view on the underlying Java code. Additionally, it comes with a rich set of wizards and operations for modifying the Scout application project just by editing the underlying Java code. There is no meta-data required. Hence a developer can switch between editing resources using Eclipse's standard editors and leveraging the features of Scout SDK at any point in time. Eclipse Scout can be used to create multi-tier client/server applications, standalone client applications or OSGi-based server applications. Basically, there are three main advantages when choosing Scout as your framework for building such applications. First, the Scout runtime is service oriented by design. Almost every functionality is provided as an OSGi service. Every OSGi bundle may make use of them. Second, Scout provides a rich set of UI elements being uncoupled from a particular GUI technology. And third, building distributed client/server applications is as easy as if both parts would run within the same local JVM.

I just had a java interview and they asked me about difference between ConcurrentHashMap and Collections.Synchronized-map and then again difference between ConcurrentHashMap and Hashtable. I didn't know so I searched the net found this java hashmap tutorial, this site has some really good java hashmap tutorial e..g how hashmap works in java, how concurrentHashmap is different than hashtable etc.

"JMockit allows developers to write unit/integration tests without the testability issues typically found with other mocking APIs. Tests can easily be written that will mock final classes, static methods, constructors, and so on. There are no limitations. The JMockit mocking API is simple, consistent, and minimal. There are no special methods or annotations that need to be used in test code, apart from those that really make sense. In general, the use of JMockit APIs for mocking leads to test code that is better structured and more readable. "

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This video explains in detail the uses of constructors and how it can be used to initialize member variables while the object is created. It also shows how we can define multiple constructors in one class.

Handling null in Java

Get Free java Projects developed in core java which is easy to understand and very helpful for the final year students and also learn allot about Application of java.

Do you Want To know About method Overloading in Java? We provide you best notes on method overloading with great examples which can easily understandable for everyone.There are two ways to overload the method.

If a class have multiple methods by same name but different parameters, it is known as Method Overloading. If we have to perform only one operation, having same name of the methods increases the readability of the program.

JMock is a library that supports test-driven development1 of Java2 code with mock objects3. Mock objects help you design and test the interactions between the objects in your programs.

"JMock is a library that supports test-driven development of Java code with mock objects. Mock objects help you design and test the interactions between the objects in your programs. The jMock library: makes it quick and easy to define mock objects, so you don't break the rhythm of programming. lets you precisely specify the interactions between your objects, reducing the brittleness of your tests. works well with the autocompletion and refactoring features of your IDE plugs into your favourite test framework is easy to extend."

What are differences between HashSet and TreeSet in Java

A good quick way of converting arraylist to set in java . ough its worth noting that all those method will eat duplicates silently and size of converted set might be less than or equal to original list.