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org.apache.jetspeed.prefs.impl
Class PreferencesImpl

java.lang.Object
  java.util.prefs.Preferences
      java.util.prefs.AbstractPreferences
          org.apache.jetspeed.prefs.impl.PreferencesImpl

public class PreferencesImpl
extends AbstractPreferences

S Preferencesimplementation relying on Jetspeed OJB based persistence plugin.

Author:

David Le Strat

Field Summary

private static org.apache.commons.logging.Log	log Logger.
private org.apache.jetspeed.prefs.om.Node	node The current Node object.
protected static org.apache.jetspeed.prefs.PreferencesProvider	prefsProvider
static int	SYSTEM_NODE_TYPE System Preferences node type.
(package private) static PreferencesImpl	systemRoot
static int	USER_NODE_TYPE User Preferences node type.
(package private) static PreferencesImpl	userRoot

Fields inherited from class java.util.prefs.AbstractPreferences

lock, newNode

Fields inherited from class java.util.prefs.Preferences

MAX_KEY_LENGTH, MAX_NAME_LENGTH, MAX_VALUE_LENGTH

Constructor Summary

PreferencesImpl(PreferencesImpl parent, String nodeName, int nodeType)
Constructs a root node in the underlying datastore if they have not yet been created.

Method Summary

String[]	childrenNamesSpi()
AbstractPreferences	childSpi(String name)
void	flushSpi()
org.apache.jetspeed.prefs.om.Node	getNode() getNode
String	getSpi(String key)
String[]	keysSpi()
void	putSpi(String key, String value)
void	removeNodeSpi()
void	removeSpi(String key)
static void	setPreferencesProvider(org.apache.jetspeed.prefs.PreferencesProvider prefsProvider) setPreferencesProvider
void	syncSpi()

Methods inherited from class java.util.prefs.AbstractPreferences

absolutePath, addNodeChangeListener, addPreferenceChangeListener, cachedChildren, childrenNames, clear, exportNode, exportSubtree, flush, get, getBoolean, getByteArray, getChild, getDouble, getFloat, getInt, getLong, isRemoved, isUserNode, keys, name, node, nodeExists, parent, put, putBoolean, putByteArray, putDouble, putFloat, putInt, putLong, remove, removeNode, removeNodeChangeListener, removePreferenceChangeListener, sync, 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

USER_NODE_TYPE

public static final int USER_NODE_TYPE

User Preferences node type.

See Also:

Constant Field Values

SYSTEM_NODE_TYPE

public static final int SYSTEM_NODE_TYPE

System Preferences node type.

See Also:

Constant Field Values

node

private org.apache.jetspeed.prefs.om.Node node

The current Node object.

log

private static final org.apache.commons.logging.Log log

Logger.

prefsProvider

protected static org.apache.jetspeed.prefs.PreferencesProvider prefsProvider

systemRoot

static PreferencesImpl systemRoot

userRoot

static PreferencesImpl userRoot

Constructor Detail

PreferencesImpl

public PreferencesImpl(PreferencesImpl parent,
                       String nodeName,
                       int nodeType)
                throws IllegalStateException

Constructs a root node in the underlying datastore if they have not yet been created.

Logs a warning if the underlying datastore is unavailable.

Parameters:

parent - The parent object.

nodeName - The node name.

nodeType - The node type.

Throws:

IllegalStateException

Method Detail

childrenNamesSpi

public String[] childrenNamesSpi()
                          throws BackingStoreException

Specified by:

childrenNamesSpi in class AbstractPreferences

Throws:

BackingStoreException

See Also:

java.util.prefs.Preferences#childrenNamesSpi()

childSpi

public AbstractPreferences childSpi(String name)

Specified by:

childSpi in class AbstractPreferences

See Also:

java.util.prefs.Preferences#childSpi(java.lang.String)

flushSpi

public void flushSpi()
              throws BackingStoreException

Specified by:

flushSpi in class AbstractPreferences

Throws:

BackingStoreException

See Also:

java.util.prefs.Preferences#flushSpi()

getSpi

public String getSpi(String key)

Specified by:

getSpi in class AbstractPreferences

See Also:

java.util.prefs.Preferences#getSpi(java.lang.String)

keysSpi

public String[] keysSpi()

Specified by:

keysSpi in class AbstractPreferences

See Also:

java.util.prefs.Preferences#keysSpi()

putSpi

public void putSpi(String key,
                   String value)

Specified by:

putSpi in class AbstractPreferences

See Also:

java.util.prefs.Preferences#putSpi(java.lang.String, java.lang.String)

removeNodeSpi

public void removeNodeSpi()
                   throws BackingStoreException

Specified by:

removeNodeSpi in class AbstractPreferences

Throws:

BackingStoreException

See Also:

java.util.prefs.Preferences#removeNodeSpi()

removeSpi

public void removeSpi(String key)

Specified by:

removeSpi in class AbstractPreferences

See Also:

java.util.prefs.Preferences#removeSpi(java.lang.String)

syncSpi

public void syncSpi()
             throws BackingStoreException

Specified by:

syncSpi in class AbstractPreferences

Throws:

BackingStoreException

See Also:

java.util.prefs.Preferences#syncSpi()

getNode

public org.apache.jetspeed.prefs.om.Node getNode()

getNode

Returns:

setPreferencesProvider

public static void setPreferencesProvider(org.apache.jetspeed.prefs.PreferencesProvider prefsProvider)

setPreferencesProvider

Sets the org.apache.jetspeed.prefs.PreferencesProvider that will support backing store operations for all PreferencesImpls

Parameters:

prefsProvider -