java.util.prefs
Class AbstractPreferences

java.lang.Object
  java.util.prefs.Preferences
      java.util.prefs.AbstractPreferences

public abstract class AbstractPreferences
extends Preferences

Field Summary

protected Object	lock
protected boolean	newNode

Fields inherited from class java.util.prefs.Preferences

MAX_KEY_LENGTH, MAX_NAME_LENGTH, MAX_VALUE_LENGTH

Constructor Summary

protected

AbstractPreferences(AbstractPreferences parent, String name)

Method Summary

String	absolutePath()
void	addNodeChangeListener(NodeChangeListener ncl)
void	addPreferenceChangeListener(PreferenceChangeListener pcl)
protected AbstractPreferences[]	cachedChildren()
String[]	childrenNames()
protected abstract String[]	childrenNamesSpi()
protected abstract AbstractPreferences	childSpi(String s)
void	clear()
void	exportNode(OutputStream ostream)
void	exportSubtree(OutputStream ostream)
void	flush()
protected abstract void	flushSpi()
String	get(String key, String deflt)
boolean	getBoolean(String key, boolean deflt)
byte[]	getByteArray(String key, byte[] deflt)
protected AbstractPreferences	getChild(String name)
double	getDouble(String key, double deflt)
float	getFloat(String key, float deflt)
int	getInt(String key, int deflt)
long	getLong(String key, long deflt)
protected abstract String	getSpi(String s)
protected boolean	isRemoved()
boolean	isUserNode()
String[]	keys()
protected abstract String[]	keysSpi()
String	name()
Preferences	node(String name)
boolean	nodeExists(String name)
Preferences	parent()
void	put(String key, String value)
void	putBoolean(String key, boolean value)
void	putByteArray(String key, byte[] value)
void	putDouble(String key, double value)
void	putFloat(String key, float value)
void	putInt(String key, int value)
void	putLong(String key, long value)
protected abstract void	putSpi(String s, String s1)
void	remove(String key)
void	removeNode()
void	removeNodeChangeListener(NodeChangeListener ncl)
protected abstract void	removeNodeSpi()
void	removePreferenceChangeListener(PreferenceChangeListener pcl)
protected abstract void	removeSpi(String s)
void	sync()
protected abstract void	syncSpi()
String	toString()

Methods inherited from class java.util.prefs.Preferences

importPreferences, systemNodeForPackage, systemRoot, userNodeForPackage, userRoot

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

lock

protected final Object lock

newNode

protected boolean newNode

Constructor Detail

AbstractPreferences

protected AbstractPreferences(AbstractPreferences parent,
                              String name)

Method Detail

cachedChildren

protected final AbstractPreferences[] cachedChildren()

getChild

protected AbstractPreferences getChild(String name)
                                throws BackingStoreException

Throws:

BackingStoreException

isRemoved

protected boolean isRemoved()

flushSpi

protected abstract void flushSpi()
                          throws BackingStoreException

Throws:

BackingStoreException

childrenNamesSpi

protected abstract String[] childrenNamesSpi()
                                      throws BackingStoreException

Throws:

BackingStoreException

childSpi

protected abstract AbstractPreferences childSpi(String s)

putSpi

protected abstract void putSpi(String s,
                               String s1)

getSpi

protected abstract String getSpi(String s)

keysSpi

protected abstract String[] keysSpi()
                             throws BackingStoreException

Throws:

BackingStoreException

removeNodeSpi

protected abstract void removeNodeSpi()
                               throws BackingStoreException

Throws:

BackingStoreException

removeSpi

protected abstract void removeSpi(String s)

syncSpi

protected abstract void syncSpi()
                         throws BackingStoreException

Throws:

BackingStoreException

absolutePath

public String absolutePath()

Specified by:

absolutePath in class Preferences

childrenNames

public String[] childrenNames()
                       throws BackingStoreException

Specified by:

childrenNames in class Preferences

Throws:

BackingStoreException

clear

public void clear()
           throws BackingStoreException

Specified by:

clear in class Preferences

Throws:

BackingStoreException

exportNode

public void exportNode(OutputStream ostream)
                throws IOException,
                       BackingStoreException

Specified by:

exportNode in class Preferences

Throws:

IOException

BackingStoreException

exportSubtree

public void exportSubtree(OutputStream ostream)
                   throws IOException,
                          BackingStoreException

Specified by:

exportSubtree in class Preferences

Throws:

IOException

BackingStoreException

flush

public void flush()
           throws BackingStoreException

Specified by:

flush in class Preferences

Throws:

BackingStoreException

get

public String get(String key,
                  String deflt)

Specified by:

get in class Preferences

getBoolean

public boolean getBoolean(String key,
                          boolean deflt)

Specified by:

getBoolean in class Preferences

getByteArray

public byte[] getByteArray(String key,
                           byte[] deflt)

Specified by:

getByteArray in class Preferences

getDouble

public double getDouble(String key,
                        double deflt)

Specified by:

getDouble in class Preferences

getFloat

public float getFloat(String key,
                      float deflt)

Specified by:

getFloat in class Preferences

getInt

public int getInt(String key,
                  int deflt)

Specified by:

getInt in class Preferences

getLong

public long getLong(String key,
                    long deflt)

Specified by:

getLong in class Preferences

isUserNode

public boolean isUserNode()

Specified by:

isUserNode in class Preferences

keys

public String[] keys()
              throws BackingStoreException

Specified by:

keys in class Preferences

Throws:

BackingStoreException

name

public String name()

Specified by:

name in class Preferences

node

public Preferences node(String name)

Specified by:

node in class Preferences

nodeExists

public boolean nodeExists(String name)
                   throws BackingStoreException

Specified by:

nodeExists in class Preferences

Throws:

BackingStoreException

parent

public Preferences parent()

Specified by:

parent in class Preferences

put

public void put(String key,
                String value)

Specified by:

put in class Preferences

putBoolean

public void putBoolean(String key,
                       boolean value)

Specified by:

putBoolean in class Preferences

putByteArray

public void putByteArray(String key,
                         byte[] value)

Specified by:

putByteArray in class Preferences

putDouble

public void putDouble(String key,
                      double value)

Specified by:

putDouble in class Preferences

putFloat

public void putFloat(String key,
                     float value)

Specified by:

putFloat in class Preferences

putInt

public void putInt(String key,
                   int value)

Specified by:

putInt in class Preferences

putLong

public void putLong(String key,
                    long value)

Specified by:

putLong in class Preferences

remove

public void remove(String key)

Specified by:

remove in class Preferences

removeNode

public void removeNode()
                throws BackingStoreException

Specified by:

removeNode in class Preferences

Throws:

BackingStoreException

addNodeChangeListener

public void addNodeChangeListener(NodeChangeListener ncl)

Specified by:

addNodeChangeListener in class Preferences

addPreferenceChangeListener

public void addPreferenceChangeListener(PreferenceChangeListener pcl)

Specified by:

addPreferenceChangeListener in class Preferences

removeNodeChangeListener

public void removeNodeChangeListener(NodeChangeListener ncl)

Specified by:

removeNodeChangeListener in class Preferences

removePreferenceChangeListener

public void removePreferenceChangeListener(PreferenceChangeListener pcl)

Specified by:

removePreferenceChangeListener in class Preferences

sync

public void sync()
          throws BackingStoreException

Specified by:

sync in class Preferences

Throws:

BackingStoreException

toString

public String toString()

Specified by:

toString in class Preferences