SmartFrog is a powerful and flexible Java-based software framework for configuring, deploying and managing distributed software systems.
SmartFrog helps you to encapsulate and manage systems so they are easy to configure and reconfigure, and so that that they can be automatically installed, started and shut down. It provides orchestration capabilities so that subsystems can be started (and stopped) in the right order. It also helps you to detect and recover from failures.
Such systems typically have multiple software components running across a network of computing resources, where the components must work together to deliver the functionality of the system as a whole. It's critical that the right components are running in the right places, that the components are individually and collectively correctly configured, and that they are correctly combined to create the complete system. This profile fits many of the services and applications that run on today's computing infrastructures.
SmartFrog consists of:
A Language for defining configurations, providing powerful system modelling capabilities and an expressive notation for describing system configurations
A secure, distributed Runtime System for deploying software components and managing running software systems
A Library of SmartFrog Components that implement the SmartFrog component model and provide a wide range of services and functionality
Frinika is a free (licensed under GNU GPL) complete music workstation software containing sequencer, midi support, soft synthesizers, audio recorder, piano roll/tracker/notation editing and more. The goal of Frinika is to be a complete platform for making music with your computer, using the versatile Java platform to be able to run on several operating systems, and being open source to be able to embrace the best open source technology being available at any time.
SoyLatte is a functional, X11-based port of the FreeBSD Java 1.6 patchset to Mac OS X Intel machines. SoyLatte is initially focused on supporting Java 6 development; however, the long-term view far more captivating: open development of Java 7 for Mac OS X, with a release available in concert with the official Sun release, supported on all recent versions of Mac OS X.
Coadunation is a Java based daemon server. It enables developers to quickly and easily develop daemons, web applications, distributed applications, manage distributed services etc. It provides, SSO (Single Sign On), SOA (Service Oriented Architecture), Web Services, RMI, Containers, Message Services and much more.
Trying to combine JSF and JSP is like trying to shoehorn a foot into a glove: it's possible, but it's really just a stopgap measure until something better comes along. In this article, JSF enthusiast Rick Hightower introduces you to what he likes best about Facelets: easy HTML-style templating and reusable composition components.
jQuery is a fast, concise, JavaScript Library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. jQuery is designed to change the way that you write JavaScript.
Pedro is an application that creates data entry forms based on a data model written in a particular style of XML Schema. Users can enter data through the forms to create data files that conform to the schema. They can use controlled vocabularies to mark-up text fields and have the application perform basic validation on field data. When they feel they have finished writing a data file, Pedro can tell them if they have left out any required records.
HiberObjects is an Eclipse plugin for object oriented design of classes and unit tests for Java Persistence API or Hibernate. PropertyChange support and DTO's for Google Web Toolkit (GWT) can also be generated.
Aranea is an Open-Source Java MVC Web Framework that provides a common Object-Oriented approach to building the web applications, reusing GUI logic and extending the framework. It comes with out-of-the-box support for nested flows and database-backed query browsing. Additionally it serves as an integration platform, allowing free intermingling of arbitrary frameworks, components and applications.
The programming community discourages using global data and objects. Still, there are times when an application needs a single instance of a given class and a global point of access to that class. The general solution is the design pattern known as singletons. However, singletons are unnecessarily difficult to test and may make strong assumptions about the applications that will use them. In this article I discuss strategies for avoiding the singleton pattern for that majority of cases where it is not appropriate. I also describe the properties of some classes that are truly singletons.
Apart from the very basic "add days" features, most business have to deal with Holidays and what to do when a calculated day falls on a holiday. This library does not attempt to create or guess the holidays, we all know that some bank holidays can be decided at a moment's notice in some markets. All financial institutions or big business will have their own official list of 'holidays' anyway.
Furthermore, "weekends" also need to be handled and some market have a different week to the conventional Monday -> Friday, our library provides you with full flexibility to design a Working Week.
As such a Non-working Day can be a holiday or a 'weekend'.
JTreeMap releases 2 components:
* a Java Swing component JTreeMap and a demo app.
* a SWT/Eclipse Plugin component, KTreeMap
Furthermore, the JTreeMap library contains an applet that could be used out of the box as it can read data in from a file on the web site, see this example.
a tool for measuring code metrics of Java applications. Contrary to other tools, Meaxure works with Java source files instead of class files and aims to be extendable. Currently Meaxure supports common metrics like lines of code, number of classes, number of methods or cyclomatic complexity. Due to it's reliance on source files it does not support metrics which cannot be calculated from individual source files like depth of inheritance tree or number of children.
Meaxure supports reporting violations to certain metrics. Rules for violations can be specified using XPath expressions,
myhttp is a basic web service engine for MySQL. It all you to perform basic HTTP method operations, like PUT, GET, and DELETE from MySQL as though it was a table. For example:
CREATE TABLE `d` (`a` varchar(125), b text, primary key(a)) ENGINE=HTTP DEFAULT CHARSET=latin1 CONNECTION="http://en.wikipedia.org/wiki/";
This would allow you to fetch pages from Wikipedia from SQL SELECT calls.
SchemaCrawler is a command-line tool to output your database schema and data in a readable form. The output is designed to be diff-ed with previous versions of your database schema. SchemaCrawler is also an API that improves on the standard JDBC metadata.
Application Ermodeller is a free CASE tool for data modelling which is built in Java. This tool supports conceptual and logical data modelling and in the final step, it allows to create physical model that is specific for particular DBMS.
The basic idea is to support development of database via ER modelling in three levels of abstraction:
* conceptual
* logical
* physical
This separation allows to create database model independent on the particular database system. You may create conceptual model and logical model that are independent on any DBMS. Then, you may generate physical model for each DBMS you will use. Afterwards, physical models allows you to generate SQL data definition for your target DBMS.
The Beryl XML GUI library was written to ease the development of graphical user interfaces using Swing on Java. It lets you store user interfaces as XML markup. This will help you avoid unnecessary clutter in your source - Swing code mixed with application logic can become a troublesome and hard to read mess as the application size increases. The library comes with a visual component builder, which makes development a breeze. The most important features are:
Develop a java-based tool that manages the life-cycle of the database schema and generates code and documentation artifacts. The tool transforms an XML description of a database schema into an HTML data dictionary, SQL scripts to create the database, and Java data access code. The tool automatically updates the documentation, scripts, and code as the schema is changed and updated. The tool also provides a simple but powerful data access programming model and framework for developing custom data access code. The generated Java code conforms to the Data Access Object (DAO) and Value Object (AKA Data Transfer Object) patterns that are described in the J2EE Java Blueprints.