Other Eclipse books focus on the internal Eclipse architecture or on repeating The Eclipse Graphical Editor Framework (GEF) / Dan Rubel, Jaime Wren, Eric Clayberg. p. cm. .. beijuaganette.cf (available from the beijuaganette.cf Web site). 1. EMF and GEF introduced. In this part of the book, we describe the basics of the Graphical Editing. Framework(GEF) and Eclipse Modeling Framework(EMF). I find it to be the clearest and most relevant book about Eclipse . The Eclipse Graphical Editing Framework (GEF) / Dan Rubel, Jaime Wren, Eric Clayberg.
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(Eclipse Modeling Framework) or GMF (Graphical Modeling Framework), Internet and in books (like the IBM Redbook) was more about GEF. Framework (GEF) covers everything Java tool developers need to create The book's final section walks step by step through developing a complete GEF. We read the contents of the book PDF site The Eclipse Graphical Editing Framework. (GEF) (Eclipse. Download ePub File. site Store PDF.
Logging It is recommended to log to a file, rather than using System.
The Activator or plug-in class provides a facility to access the plug-in logging mechanism through the getLog method, returning the org. ILog interface. Each log entry using this framework is of type IStatus.
An implementation of this interface, Status, is available for use. There is also a MultiStatus class which allows multiple statuses to be logged at once. For build managers who have used the Update Site mechanism before, there doesn't need to be any change. To create an update site you can use the wizard provided to create a new site.
Using the Software Updates menu, users can point to your update site on the web and download the plug-in.
By adding some extra functionality over this simple implementation, you can leverage p2 to add extra meta data to your update site, which will make the installation experience faster for end users. You can run this application in headless mode using org. The following shows an example of how to run this application, taken from the p2 wiki. This section gives an overview of just a few of the useful projects that exist, and explains how they can be used in your project.
Customize and Enhance Your Eclipse Experience
Using this technology, you can define a model in the score format, generate Java code to represent, serialize and de-serialize the model. Other tools within the modeling project utilize EMF to provide more specialized frameworks for developers.
But the tools, applications, and products that have been enabled by GEF form a very long list indeed. It is an testament to the idea that a small, powerful, and open source framework can make an enormous impact on the industry.
A big part of the success of the GEF project and its three frameworks has been its long-term focus on being a platform. Although there has been a steady flow of innovative new features, the quality, stability, and backwards compatibility of the GEF project APIs have been a big part of its success.
Practical Eclipse Rich Client Platform Projects
It requires a great deal of commitment and discipline by the project team to accomplish. Dan Rubel and Eric Clayberg are the authors of one of the most highly regarded books in the history of Eclipse.
Their Eclipse Plug-ins is generally considered the seminal book on how to extend the Eclipse platform.
Dan and Eric, this time joined by their colleague Jaime Wren, have brought their clear prose, deep knowledge, and focus on the issues that matter to developers using the Eclipse GEF framework to this new book.
I know that you will find it a useful addition to your Eclipse library. Preface When we were first exposed to Eclipse back in late , we were struck by the magnitude of the problem IBM was trying to solve. IBM wanted to unify all its development environments on a single code base. Meanwhile, Java was winning the hearts and minds of developers worldwide with its promise of easy portability across a wide range of platforms, while providing the rich application programming interface API needed to build the latest generation of Web-based business applications.
More important, Java was an object-oriented OO language, which meant that IBM could leverage the large body of highly skilled object-oriented developers it had built up over the years of creating Smalltalk-based tools. Eclipse was the happy result. The group was able to replicate most of the features that had made Smalltalk-based IDEs so popular the decade before, while simultaneously pushing the state of the art in IDE development ahead by an order of magnitude.
That alone makes Eclipse a perfect platform for developers wishing to get their tools out to as wide an audience as possible. The fact that Eclipse is completely free and open source is icing on the cake. An open, extensible IDE base that is available for free to anyone with a computer is a powerful motivator to the prospective tool developer. It certainly was to us. At Instantiations and earlier at ObjectShare, we had spent the better part of a decade as entrepreneurs focused on building add-on tools for various IDEs.
Every one of these environments provided a means to extend the IDE, but they were generally not well documented and certainly not standardized in any way. You can control the multiplicity of your extension here.
The mapping of XML to extension point declaration is simple; for users of your point, an xml element in the extension point will always appear on the left hand side tree, as part of the extension point declaration, while the xml attributes will appear as extension point attributes. The Code Behind an Extension Point With the extension point defined, the producer of this needs to provide some implementation that makes use of any extension point contributions.
To get a list of all the implementers of your extension point you can query the extension registry as follows, providing your extension point identifier as the parameter. The Dependencies tab in particular is essential for organizing your runtime.
From here you can investigate the plug-in dependency hierarchy, starting with your plug-in as the root. You can also see which plug-ins are dependent on your own plug-in, as well as find any unused dependencies. This can be useful if you previously added a dependency to use an extension point, but have found that it is since no longer required.
About this book
Finally, and most importantly, the tab provides a utility for investigating for cyclic dependencies. Another useful tool for plug-in development is the Plug-in Registry view. This view will display all the plug-ins that are currently available in your Eclipse installation.
Figure 4: Plug-in Registry When launching an application containing you plugin, use the -consoleLog program argument from the Run Configurations dialog to see output to the system console. Logging It is recommended to log to a file, rather than using System. The Activator or plug-in class provides a facility to access the plug-in logging mechanism through the getLog method, returning the org.
ILog interface.That relationship meant that we were in a unique position to be briefed on the technology and to start using it on a daily basis nearly a yearand-a-half before the rest of the world even heard about it.
The Eclipse Graphical Editing Framework (GEF) (Eclipse Series)
If the element passed to this method is one of our model objects, then return the text to be displayed for that model object. In this section, we extract code out of the GenealogyView into new PersonFigure and MarriageFigure classes to make the code more manageable and allow us to enhance the information displayed for each person.
A new major revision of the framework has been developed in parallel to the maintenance of the GEF 3. EditParts use a collection of EditPolicy instances to specify what commands can be performed on which graphical elements.
Implement one listener, one command, one EditPolicy, and a tool in the palette, then repeat to create each user operation one by one.
Modify the createDiagram … method as follows to pass this color to our label provider: I know that you will find it a useful addition to your Eclipse library. Figure 12—2 Genealogy editor showing selected elements. The setBackgroundColor … call is unnecessary and can be removed since we are rendering the background ourselves and not using the background color property.
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