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36 lines
1.8 KiB
HTML
Executable file
36 lines
1.8 KiB
HTML
Executable file
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
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<html>
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<head>
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<meta name="copyright" content="Copyright (c) IBM Corporation and others 2005, 2007. This page is made available under license. For full details see the LEGAL in the documentation book that contains this page." >
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<link rel="STYLESHEET" href="../book.css" charset="ISO-8859-1" type="text/css">
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<title>RSE Subsystems</title>
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<link rel="stylesheet" type="text/css" href="../book.css">
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</head>
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<body>
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<h1>RSE Subsystems</h1>
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<p>
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Subsystems provide a layer of abstraction on the set of services provided at lower layers.
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Subsystems make remote resources individually visible to their clients and expose the relationships among these resources - such as the parent-child
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relationship between directories and files on a remote file system.
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</p>
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<p>
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There should typically be only one subsystem implementation for each type of remote resource.
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Minor differences between remote systems or
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the protocols required to access them should be provided by different
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implementations of an underlying service.
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For example, RSE provides a single
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exemplary file subsystem, but that file subsystem uses different file services to use different remote file access protocols.
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The duty of tieing a subsystem to its underlying service goes to the subsystem configuration.
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</p>
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<p>
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A subsystem configuration creates subsystems of the kind it understands and, in addition, create them with the appropriate
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underlying service if there is one. These configuration classes are registered with RSE using the
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<code>org.eclipse.rse.core.subsystemConfigurations</code> extension point.
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</p>
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<p>
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RSE supplies ready-made subsystems for files, command execution, and processes.
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</p>
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</body>
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</html>
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