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java.lang.Objectorg.eclipse.core.internal.preferences.AbstractScope
org.eclipse.core.runtime.preferences.DefaultScope
public final class DefaultScope
Object representing the default scope in the Eclipse preferences hierarchy. Can be used as a context for searching for preference values (in the IPreferencesService APIs) or for determining the correct preference node to set values in the store.
Default preferences are not persisted to disk.
The path for preferences defined in the default scope hierarchy
is as follows: /default/<qualifier>
Note about product preference customization:
Clients who define their own org.eclipse.core.runtime.IProduct
are able to specify a product key of "preferenceCustomization
".
(defined as a constant in org.eclipse.ui.branding.IProductConstants)
Its value is either a URL
or a file-system path to a
file whose contents are used to customize default preferences.
This class is not intended to be subclassed. This class may be instantiated.
Field Summary | |
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static java.lang.String |
SCOPE
String constant (value of "default" ) used for the
scope name for the default preference scope. |
Constructor Summary | |
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DefaultScope()
Create and return a new default scope instance. |
Method Summary | |
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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. |
java.lang.String |
getName()
Return the name of the scope that this context is associated with. |
IEclipsePreferences |
getNode(java.lang.String qualifier)
Return the preferences node that contains the preferences for the given qualifier or null if the node cannot be determined. |
Methods inherited from class org.eclipse.core.internal.preferences.AbstractScope |
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equals, hashCode |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.lang.String SCOPE
"default"
) used for the
scope name for the default preference scope.
Constructor Detail |
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public DefaultScope()
Method Detail |
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public java.lang.String getName()
IScopeContext
null
.
getName
in interface IScopeContext
getName
in class org.eclipse.core.internal.preferences.AbstractScope
public IEclipsePreferences getNode(java.lang.String qualifier)
IScopeContext
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.
getNode
in interface IScopeContext
getNode
in class org.eclipse.core.internal.preferences.AbstractScope
qualifier
- a qualifier for the preference name
null
IPreferencesService
public IPath getLocation()
IScopeContext
Implementors may return null
if the location is not known,
is unavailable, or is not applicable to this scope.
getLocation
in interface IScopeContext
getLocation
in class org.eclipse.core.internal.preferences.AbstractScope
null
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