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Eclipse Platform
Release 3.5

org.eclipse.core.runtime.preferences
Interface IScopeContext

All Known Implementing Classes:
org.eclipse.core.internal.preferences.AbstractScope, ConfigurationScope, DefaultScope, InstanceScope, ProjectScope

public interface IScopeContext

Clients implement this interface to provide context to a particular scope. Instances of implementations of this interface are passed to the IPreferencesService for use in preference searching.

Clients may implement this interface.

Since:
3.0
See Also:
IPreferencesService

Method Summary
  IPath getLocation ()
          Return a path to a location in the file-system where clients are able to write files that will have the same sharing/scope properties as preferences defined in this scope.
  String getName ()
          Return the name of the scope that this context is associated with.
  IEclipsePreferences getNode ( String qualifier)
          Return the preferences node that contains the preferences for the given qualifier or null if the node cannot be determined.
 

Method Detail

getName

String getName()
Return the name of the scope that this context is associated with. Must not be null.

Returns:
the name of the scope

getNode

IEclipsePreferences getNode(
String qualifier)
Return the preferences node that contains the preferences for the given qualifier or null if the node cannot be determined. The given qualifier must not be null but may be a path to a sub-node within the scope.

An example of a qualifier in Eclipse 2.1 would be the plug-in identifier that the preference is associated with (e.g. the "org.eclipse.core.resources" plug-in defines the "description.autobuild" preference).

This method can be used to determine the appropriate preferences node to aid in setting key/value pairs. For instance: new InstanceScope().getNode("org.eclipse.core.resources"); returns the preference node in the instance scope where the preferences for "org.eclipse.core.resources" are stored.

Parameters:
qualifier - a qualifier for the preference name
Returns:
the node containing the plug-in preferences or null
See Also:
IPreferencesService

getLocation

IPath getLocation()
Return a path to a location in the file-system where clients are able to write files that will have the same sharing/scope properties as preferences defined in this scope.

Implementors may return null if the location is not known, is unavailable, or is not applicable to this scope.

Returns:
a writable location in the file system or null

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire