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-<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-<title>Eclipse Debug Platform</title>
-<body bgcolor="#FFFFFF">
-<p>Provides support for launching programs, breakpoint management, expression management,
-and debug events.</p>
-<h2>Package Specification</h2>
-<p>This package provides classes and interfaces to support facilities common among
- many debug architectures: launching programs, breakpoint management, expression
- management, and debug events. An extensible set of debug architectures and languages
- are supported by the definition of a &quot;debug model&quot; - a set of interfaces
- representing common artifacts in debuggable programs, which are defined in <b>org.eclipse.debug.core.model</b>.
- The debug plug-in itself does not provide an implementation of a debug model.
- It is intended that third parties providing an integrated set of development
- tools for a specific language will also implement a debug model for that language,
- using an underlying debug architecture of their choice. For example, Java development
- tooling provides an implementation of a debug model based on the standard Java
- Platform Debug Architecture (JPDA).</p>
-<h4>The Managers</h4>
-<p>The debug platform defines and provides an implementation of the following managers:
- <li>Launch Manager - The launch manager maintains the set of registered launches
- - that is, a collection of programs that have been launched in debuggable
- or non-debuggable (run) mode. Each launch contains its associated debug targets
- and system processes. A launch that represents a debuggable program may specify
- an associated source locator used to locate source elements associated with
- stack frames for a particular debug session. Clients may provide implementations
- of source locators, which are generally tied to the manner in which a program
- is launched.</li>
- <li>Breakpoint Manager - The breakpoint manager maintains, persists, and restores the collection
- of all registered breakpoints in the workspace. As well, it provides change notification for
- breakpoints.</li>
- <li>Expression Manager - The expression manager maintains a collection of registered expressions.
- Expressions are not automatically persisted, but a client could persist its own expressions
- if required.</li>
-<h4>Launch Configurations</h4>
-<p>A launch configuration is a persistable description of how to launch an application.
- Each launch configuration is an instance of a type of launch configuration -
- for example, a Java Application. The debug plug-in defines a launch configuration
- type extension point that clients can contribute to. A launch configuration
- is a set of attributes describing how to launch a program. The launching of
- an application is performed by an associated implementation of a launch configuration
- delegate, contributed by each launch configuration type extension.</p>
-<p>A launch configuration may be stored as a file in the worksapce (and shared
- in a repository via standard team mechanisms), or may be stored locally, essentially
- making the launch configuration private for a single user.</p>
-<h4>New Features in the Debug Platform, Eclipse 3.0</h4>
- <h4>Extensible Launch Modes</h4>
- <p>The debug platform supports an extensible set of launch modes. Prior releases
- only supported two launch modes - run and debug. The debug platform defines
- an extension point for contributing new launch modes (<code>org.eclipse.debug.core.launchModes)</code>,
- and contributes three basic launch modes itself: run, debug, and profile.
- The launch manager has API to retrieve all launch modes, and a human readable
- label for each launch mode.</p>
- <p>The debug platform has an extension point to support the contribution of
- a launch delegate for a specific launch configuration type and launch mode
- - <code>org.eclipse.debug.core.launchDelegates</code>. This allows launch
- configurations to be extended by third parties, to support new launch modes.
- For example, a client could contribute a launch delegate that launches a Java
- Application in profile mode (currently, the SDK does not provide a Java profiler).</p>
- <p>For backwards compatibility, the launch delegate supplied by a launch configuration
- type extension is used for the launch modes specified by the launch configuration
- type. A launch delegate supplied for a specific mode, is used only for that
- mode.</p>
- <h4>Extensible Debug Events</h4>
- <p>The debug platform supports an extensible set of debug events. A debug event
- kind of <code>MODEL_SPECIFIC</code> has been added to indicate an application
- specific debug event. When a debug event of kind <code>MODEL_SPECIFIC</code>
- is created, the detail code in the event is client defined. The source of
- the event (debug element that generated the event) identifies the debug model
- from which the event was generated. The debug platform and user interface
- ignores model specific debug events.</p>
- <p>A data field has been added to debug events to allow clients to store application
- specific data in debug events.<br>
- </p>
- <h4>Process Factories<br>
- </h4>
- <p>The debug platform provides an extension point (<code>org.eclipse.debug.core.processFactories</code>)
- for contributing process factories. A process factory can be used to override
- default process creation for a launch configuration when the debug plug-in
- creates a new process. A launch configuration can specify a process factory
- to use when creating a process, via the launch configuration attribute<code>
- DebugPlugin.ATTR_PROCESS_FACTORY_ID</code>.</p>
- <h4>Launch Termination Notification<br>
- </h4>
- <p>The debug platform provides a mechanism for launch listeners to be notified
- when a launch terminates. A launch is a container of processes and debug targets.
- When all of the contained targets and processes terminate, a terminate notification
- is sent to those listeners implementing <code>ILaunchesListener2</code>.</p>
- <h4>Breakpoint Manager Enablement<br>
- </h4>
- <p>The breakpoint manager defines the methods <code>setEnabled(boolean)</code>
- and <code>isEnabled()</code>. When the breakpoint manager is disabled, debuggers
- should ignore all registered breakpoints. The debug platform also provides
- a new listener mechanism, <code>IBreakpointManagerListener</code> which allows
- clients to register with the breakpoint manager to be notified when its enablement
- changes.</p>

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