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The Launching Framework in Eclipse

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lucinda-adriano
7 diapositives · 226 Views · Nov 15, 2014

The Launching Framework in Eclipse. Cheng-Chia Chen. Outlines. source: http://www.eclipse.org/articles/Article-Launch-Framework/launch.html Eclipse's launching capabilities depend entirely on the current set of installed plug-ins. API available to build launching plug-ins and

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The Launching Framework in Eclipse
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  1. The Launching Framework in Eclipse Cheng-Chia Chen

  2. Outlines • source: • http://www.eclipse.org/articles/Article-Launch-Framework/launch.html • Eclipse's launching capabilities • depend entirely on the current set of installed plug-ins. • API available to build launching plug-ins and • developing an example launcher using this API. • Prerequisites: • basic understanding of Eclipse plug-in architecture • understanding the structure of plugin.xml • knowledge of java and java environment

  3. What is launching ? • launching is defined as running or debugging a program from within Eclipse. • alauncher is a set of Java classes that live in an Eclipse plug-in that performs launching. • The base Eclipse workbench has no launcher. • It is only through plug-ins that Eclipse gains the ability to launch. • The Eclipse SDK does ship with a set of useful launchers for launching • local Java applications & Java applets, • connecting to remote Java applications, • JUnit test suites and • starting an Eclipse workbench, • if none of these satisfy your needs, you may need to write your own launcher.

  4. The framework • two main classes: • LaunchConfiguration • the cookies • LaunchConfigurationType • the cookie cutters • Example: run a HelloWorld.java program • configurations: • main class name: ‘HelloWorld’ • JRE to use: 1.4.2 • program and VM arguments • classpath,… • type: local Java Application' • means only this type knows how to make sense of this config and how to launch it.

  5. The Java applet example • an example actually part of eclipse SDK • non-UI parts living in org.eclipse.jdt.launching plug-in, and • UI parts contained in org.eclipse.jdt.debug.ui plug-in. • Declaring and implementing a launch configuration type • Declaring and implementing a launch configuration type icon • Declaring and implementing a tab group • Declaring and implementing launch shortcuts • Declaring and implementing launch groups • Declaring and implementing a launch configuration comparator • Putting it all together

  6. Declaring a launch configuration type <extension point="org.eclipse.debug.core.launchConfigurationTypes"> <launchConfigurationType name="Java Applet" delegate="org.eclipse.jdt.internal.launching.JavaAppletLaunchConfigurationDelegate" modes="run, debug" id="org.eclipse.jdt.launching.javaApplet"> </launchConfigurationType> </extension> Notes: • The delegate class must implement the interface:org.eclipse.debug.core.model.ILaunchConfigurationDelegate. it is the brains of the launcher, and implements the launch() method which launches a specified config. • modes can be run or debug or both. can affect how the the configs appear in UI. if in both mode, launch() should handle both.

  7. Declaring a launch configuration type Notes: 3. optional boolean attributes: • private • ture => can be launched by programs only. • false[default] => can appear in UI. • category • discussed later