| Package | Description |
|---|---|
| java.util.prefs |
This package allows applications to store and retrieve user and system
preference and configuration data.
|
| Modifier and Type | Method and Description |
|---|---|
abstract String[] |
Preferences.childrenNames()
Returns the names of the children of this preference node, relative to
this node.
|
String[] |
AbstractPreferences.childrenNames()
Implements the children method as per the specification in
Preferences.childrenNames(). |
protected abstract String[] |
AbstractPreferences.childrenNamesSpi()
Returns the names of the children of this preference node.
|
abstract void |
Preferences.clear()
Removes all of the preferences (key-value associations) in this
preference node.
|
void |
AbstractPreferences.clear()
Implements the clear method as per the specification in
Preferences.clear(). |
abstract void |
Preferences.exportNode(OutputStream os)
Emits on the specified output stream an XML document representing all
of the preferences contained in this node (but not its descendants).
|
void |
AbstractPreferences.exportNode(OutputStream os)
Implements the exportNode method as per the specification in
Preferences.exportNode(OutputStream). |
abstract void |
Preferences.exportSubtree(OutputStream os)
Emits an XML document representing all of the preferences contained
in this node and all of its descendants.
|
void |
AbstractPreferences.exportSubtree(OutputStream os)
Implements the exportSubtree method as per the specification in
Preferences.exportSubtree(OutputStream). |
abstract void |
Preferences.flush()
Forces any changes in the contents of this preference node and its
descendants to the persistent store.
|
void |
AbstractPreferences.flush()
Implements the flush method as per the specification in
Preferences.flush(). |
protected abstract void |
AbstractPreferences.flushSpi()
This method is invoked with this node locked.
|
protected AbstractPreferences |
AbstractPreferences.getChild(String nodeName)
Returns the named child if it exists, or null if it does not.
|
abstract String[] |
Preferences.keys()
Returns all of the keys that have an associated value in this
preference node.
|
String[] |
AbstractPreferences.keys()
Implements the keys method as per the specification in
Preferences.keys(). |
protected abstract String[] |
AbstractPreferences.keysSpi()
Returns all of the keys that have an associated value in this
preference node.
|
abstract boolean |
Preferences.nodeExists(String pathName)
Returns true if the named preference node exists in the same tree
as this node.
|
boolean |
AbstractPreferences.nodeExists(String path)
Implements the nodeExists method as per the specification in
Preferences.nodeExists(String). |
abstract void |
Preferences.removeNode()
Removes this preference node and all of its descendants, invalidating
any preferences contained in the removed nodes.
|
void |
AbstractPreferences.removeNode()
Implements the removeNode() method as per the specification in
Preferences.removeNode(). |
protected abstract void |
AbstractPreferences.removeNodeSpi()
Removes this preference node, invalidating it and any preferences that
it contains.
|
abstract void |
Preferences.sync()
Ensures that future reads from this preference node and its
descendants reflect any changes that were committed to the persistent
store (from any VM) prior to the sync invocation.
|
void |
AbstractPreferences.sync()
Implements the sync method as per the specification in
Preferences.sync(). |
protected abstract void |
AbstractPreferences.syncSpi()
This method is invoked with this node locked.
|
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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