Introduction To RCP(Rich Client Platform)
May 24th, 2007Rich Client Platform in Eclipse consists of a core, a standard bundling,a framework, a portable widget toolkit, file buffers, text handling, text editors, a workbench (views, editors, perspectives, wizards), Update Manager etc. With RCPs developers can build their own applications on existing platforms, without spending much time on building platforms . Instead of having to write a complete application from scratch, they can benefit from proven and tested features of the framework provided by the platform. Building on a platform facilitates faster application development and integration. Rich Client Application (RCA) ( an application built on RCPs ) normally in the form of a stand-alone executable with a graphical interface composed of several controls for the user.
Making a rich client application in eclipse is quite similar to plug-in development work, with a little different approach. Here it is discussed in steps.
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Generating Javadoc In Eclipse IDE
May 22nd, 2007Javadoc is a set of Html files For any Java Project. In big Java Projects it is always better to generate document of the code written so as to make better understanding of the classes usage and detail about their methods.
Building A Java Project In Eclipse
May 22nd, 2007Eclipse IDE not only manages Java code for Projects but Programmer can compile their Java source code using features of IDE. Suppose you have a Java Project with source code and the Jar files needed to compile the project in the project claspath. IDE provides you the option to build Java code and putting that to the output directory. Here is the brief introduction for each option available.
Debugging Java Application in Eclipse IDE
May 22nd, 2007A Programmer many times try to locate and fix the bugs (errors) in the program code. Basic meaning of debugging a program is to start with a problem, isolate the source of the problem, and then fix it. When a programmer says he has debugged the program it means bugs has been worked out and bugs no longer exist.
From a Java Programmer there are a varieties of tools but if you are using an editor then it becomes quite easy for you to debug the program.
Java Command Line Arguments In Eclipse IDE
May 19th, 2007The signature of main method is:
public static void main(String[] args) {
which means that it takes a string array as the input argument. How can those be passed while running as a standalone class with in the Eclipse IDE? How can we use those input parameters with in a program? These are the some of the questions discussed here.
Jigloo GUI Plugin for Eclipse
May 14th, 2007Developing graphical user interface in Java, can be in three ways. AWT, Swing and SWT.
Abstract Windows Toolkit (AWT) does not have fancy looks as compared to Swing but its advantage is that it can run at any place where Java runtime environment is installed. It is very stable technology.
Swing provides GUIs that have fancy and sophisticated look and feel. It is included in the Java Foundation Classes (JFC). These are said to be slow as the controls are made by the Java itself.
Standard Widget Toolkit (SWT) is an open source Java GUI toolkit comprised of a widget set and a graphics library. It provides GUIs having look and feel very similar to the native desktop applications. This is supposed to be faster as the controls are built by the native dlls.
Jigloo is an Eclipse plugin which can be used to design AWT, Swing and SWT GUIs quikly and efficiently. It is free for non commercial use.
First download the plug-in from here. Unzip it and move the folder “ plugins\com.cloudgarden.jigloo_3.9.5 ” to the plugins folder under Eclipse directory and move “ featues\com.cloudgarden.jigloo_3.9.5 ” to the features folder under Eclipse directory. Now simple open the Eclipse. Jigloo GUI plugin is read to use.
XMLBuddy for Eclipse
May 14th, 2007XML stands for EXtensible Markup Language. It is a markup language much like HTML and it is used to describe data. XML is a popular format in many advanced protocols. Many of the application configuration files are now converted to XML format. Now a days the XML data is also used for inter application communications to a wide extend.
There are many XML plug-ins available for the XML manipulations, but the most popular one is “ XMLBuddy ”. Its a free-ware plug-in and allows XML editing features in Eclipse environment.
First download the plug-in from http://www.xmlbuddy.com. Unzip it and move the folder named “ com.objfac.xmleditor_2.0.9 ” to the plugins folder under Eclipse directory. Now simple open the Eclipse. XML plug-in is read to use.
An Introduction to Eclipse PDE - File Creation
May 8th, 2007Eclipse is a platform which is itself comprised of plugins.Eclipse itself is not only a Developement environment for Java pr C++ But also an IDE for plugins for itself or standalone plugins.
As stated above Eclipse can be used as a Plugin Development Environment (PDE) which is a set of tools that help the developers in developing, testing, debugging, building, and deploying Eclipse plugins.
The plugin Development Environment (PDE) has its Wizard template to create plugins. The plugin,to be created will associate Eclipse with the file extension “.myext”. The plugin’s wizard will enable the user to create files with this extension, and when the user double-clicks on those files, they’ll appear in the plugin’s editor.
Using Junit In Eclipse
May 6th, 2007Unit testing is defined as “ Each module is tested alone in an attempt to discover any errors in its code ”. Its always a good practice to test each unit of your project independently as it saves time and effort while integrating the modules.
JUnit provides close relationship between testing and development. As developers write the code, they use the JUnit test runners to verify how much it deviates from the intended goal. Normally it is a standard practice that the code developers themselves write unit tests for their code.
Generating Undeclared Methods
May 5th, 2007Eclipse has many features that make the job of a programmer easy. Here a simple project is created and will use few of those features to demonstrate how easy programming can be using Eclipse. Most of the new programmers, ignore these and prefer to code everything themselves which is time consuming.
Concurrent Versions System (CVS)
May 2nd, 2007Eclipse comes with support for teams in the form of CVS, Concurrent Versions System. CVS is an open source tool to keep track of every version of a set of files. The versions and files are kept in a repository that is able to respond to requests like, “ give me version 1.9 of file Abc.java ”.
Let’s assume that you are working on a file “ TestClass.java ”. When the file is new, it is added to the repository, which basically means that file becomes known to the repository, and from that point onwards, the repository will keep record of the file and all its versions. After adding the file, some editing is made, and then those edits are “ checked in ” to the repository, which instructs the repository to watch the difference, store the difference, and then make the checked in file the current/latest copy of the file. After you have checked in your changes, the file version beomces 1.1, and any other user that has access to the repository can update their local copy with this version 1.1 from the repository. With the time, the file continues to be edited and newer and newer version are checked in, Since the repository has the file and all the old versions of that file, you are table to ask the repository for “ TestClass.java 1.2 “ ( 1.2 is the version no), even when the latest version is 1.56.
Working With ANT
April 26th, 2007ANT is a Java build tool. It is very easy to use ANT in Eclipse. For example, you have a simple Java project with following code:
Eclipse Help - Introduction
April 26th, 2007While using any software help content is sometimes more than crucial. In old versions of Eclipse there was some limitation in eclipse help. While you’re browsing the Eclipse help system, and some of the help pages are very long. You want to search the text in those pages, but you notice that the Eclipse help browser doesn’t let you search the current page. Though this problem has been rectified in new versions.
The Eclipse Platform’s help system allows you to contribute your plug-in’s online help using the “ org.eclipse.help.toc ” extension point.
Tomcat In Eclipse - Sysdeo Tomcat Plug-in
April 25th, 2007There are many plug-ins available for the integration of tomcat with eclipse but most simple among them is “ Sysdeo Tomcat plugin ”. This can be downloaded from http://www.eclipsetotale.com/tomcatPlugin.html .
Step wise process to integrate tomcat using this plug-in is as follows:
Using Find And Replace In Eclipse IDE
April 15th, 2007Java programmers usually searches for some methods, keywords or even identifiers in the source files, project or in the workspace as a whole. The search capability uses an index of Java code in your workspace that needs to be kept up-to-date, Independent of Java builds, Means you don’t have to select the “Build Automatically” preference or need to save your modifications in order to do a search.
Searching In A File
To search for some text in a file in the active editor.
How To Call EJB From Eclipse IDE
April 13th, 2007Assuming that you know how to create J2EE modules in eclipse IDE and generating EJB code using Xdoclet. To know more click here .
How To Create EJB’s In Eclipse IDE
April 10th, 2007Here I am assuming that you are aware of creating J2EE Module In Eclipse IDE. To know more click here. So Suppose you have an EJB Module created in IDE, Then for example we will create a stateless session bean by following these steps.
Creating J2EE Modules For Enterprise Application
April 8th, 2007Using Lomboz we can create Enterprise Application modules. Here we will see how we can add J2EE, Web modules to an Enterprise Application so that J2EE development can be done in a quicker and easier way.
Although a programmer can create Web and J2EE modules separately and later add them to EAR file, But the recommended approach is to create those modules while creating Enterprise Application, So that they will be packaged instantly to your EAR project.
Exporting/Importing JAR files
April 5th, 2007JAR (Java archive) files are commonly being used by Java developers. JAR file is a deployable package comprising of number of class files and other resources. One benefit is that JAR file uses compression algorithms to reduce the overall size.
Now suppose we have a Java project in Eclipse called Resources. It comprices of 2 classes Student and Teacher.
Development Of Enterprise Applications in Eclipse IDE
April 4th, 2007Lomboz is a reliable plugin for J2EE development. It can be downloaded from http://lomboz.objectweb.org/downloads/drops/S-3.1M6-200505030842/.
Developing Enterprise Applications in Eclipse is quite simple with the help of lomboz. Here let me describe five simple steps to create an Enterprise Application Project using Eclipse IDE.
Configuring Xdoclet for J2ee Applications in Eclipse
April 2nd, 2007For J2EE applications, We can configure Xdoclet in Eclipse so that development can be made faster. Xdoclet can be downloaded from
http://www.xdoclet.sourceforge.net/xdoclet/install.html
Extract Xdoclet files to the local drive.
Configuring J2EE Environment on Eclipse IDE
March 31st, 2007Eclipse IDE is well known for Java project development. One of the reasons is that Eclipse is free and is easily extendable. Unfortunately no free and reliable plug-in was available for configuring J2EE environment on Eclipse IDE untill Lomboz. Lomboz is an open source and free J2EE development environment for businesses and individuals. You can develop, test, profile and deploy Web, Web services, Java, J2EE and EJB applications with this IDE. Lomboz has comprehensive support for most J2EE standard application server runtimes, and supports most popular open source runtimes such as JOnAS, and other vendor runtime environments. Lomboz is buillt on the Eclipse open source platform and the Web Tools Platform (WTP) projects. Here is the complete tutorial for configuring J2EE environment on Eclipse. It can be downloaded from Lomboz version of Eclipse
After Installing Lomboz
Generating Code Automatically Using Custom code Template In Eclipse
March 28th, 2007One of the good features of Eclipse is its auto fill property. This can be further enhanced using its code template feature. Creation of code templates is necessary to improve development productivity. Templates add consistency and uniformity to your code. Eclipse has so many ready-to-use templates. And you can create your own code templates according to your requirements. To use these templates just type the starting characters of the template and then press “CTRL+SPACE”. For example in Eclipse IDE type “tr” and then press “CTRL+SPACE”, It will add “try-catch” block to the code.
Customize the palette of Visual Editor
March 26th, 2007The Visual Editor has a palette from which the user can choose frequently used widgets. This article is a deep dive into the internals of the Visual Editor framework to show how to extend its capabilities. Visual Editor lets you create your own custom controls. This article shows the way to create a new palette category with a custom built widget DateField.
There are two ways to drag custom built widget to your view:
Auto generating getters and setters
March 24th, 2007Normally it is a good practice to have class variables declared as private and use non private “getter and setter” methods to access them. This is otherwise called as data encapsulation in Object Oriented Programming.
SWT is better than Swing
March 24th, 2007Swing
- The Swing API is complicated—that’s the price to pay for flexibility provided for coding applications.
- The performance is not good; because everything is emulated and drawn using basic Graphics2D calls, software and hardware optimizations from the native system are not possible.
- Swing may not be able to take advantage of hardware GUI accelerators and special host GUI operations. As a result, Swing applications may be slower than native GUIs. Sun has worked hard on the performance of the recent versions of Swing (Java V1.4 and 1.5), and this disadvantage is becoming less noticeable. Because Swing’s design is more robust, its code base is larger. This can mean it takes a beefier machine to run it than AWT or SWT might.
- The look and feel of a Swing application is not exactly the same as those of a native application. Furthermore, the customization of the colors and font schemes of the underlying windowing system are difficult to propagate in the emulated widgets.
- Swing does not typically look like a native application. In fact, it has multiple looks, some that can emulate—although often not exactly—different hosts and some that provide unique looks.
- Creating a GUI that is accessible to people with disabilities is important. Swing offers an extensive infrastructure and API for enabling GUIs for accessibility. This support is independent of but integrates with the host accessibility support, if any.
SWT
Introduction
March 22nd, 2007The first version of Eclipse was released in November 2001. Eclipse was announced by IBM as a $40 million donation to the Open Source community. Eclipse is now completely managed by eclipse.org, an independent, nonprofit organization.
The beauty of Eclipse IDE is its plugins architecture. A plug-in in Eclipse is a component that provides a certain type of service within the context of the Eclipse workbench. Each plug-in creates a bit of functionality, and plug-in altogether make a very rich integrated development environment.
