ur_rna.Utilities.prefs

Class FilePreferences

java.lang.Object

java.util.prefs.Preferences

java.util.prefs.AbstractPreferences

ur_rna.Utilities.prefs.FilePreferences

Direct Known Subclasses:

FilePreferences.RootNode

public class FilePreferences
extends java.util.prefs.AbstractPreferences

Preferences implementation that stores to a user-defined file.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FilePreferences.Factory PreferencesFactory implementation that stores the preferences in an XML file.
protected static class	FilePreferences.RootNode

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Set<java.lang.String>	childNames
private static java.lang.String[]	EMPTY_NAME_ARRAY
private static java.util.logging.Logger	log
private boolean	modified
private java.util.Map<java.lang.String,java.lang.String>	prefs
protected FilePreferences.RootNode	root

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

Constructors

Modifier	Constructor and Description
protected	FilePreferences(java.util.prefs.AbstractPreferences parent, java.lang.String name)

Method Summary

Modifier and Type	Method and Description
protected java.lang.String[]	childrenNamesSpi()
protected FilePreferences	childSpi(java.lang.String name)
static FilePreferences	createRoot()
static FilePreferences	createRoot(java.lang.String preferencesFilePath)
void	flush()
protected void	flushSpi()
java.io.File	getPreferencesFile()
FilePreferences	getRoot()
protected java.lang.String	getSpi(java.lang.String key)
boolean	isModified()
protected java.lang.String[]	keysSpi()
java.lang.String	nodePrefix() Returns the absolute path and ensures that it ends with a slash (/) For child nodes this is the same as absolutePath() + '/' but for the root node it is just '/'.
protected void	putSpi(java.lang.String key, java.lang.String value)
protected void	readProps()
protected void	removeNodeSpi()
protected void	removeSpi(java.lang.String key)
protected FilePreferences.RootNode	rootNode()
void	setPreferencesFile(java.io.File file)
void	sync()
protected void	syncSpi()

Methods inherited from class java.util.prefs.AbstractPreferences

absolutePath, addNodeChangeListener, addPreferenceChangeListener, cachedChildren, childrenNames, clear, exportNode, exportSubtree, 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, 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

childNames

private java.util.Set<java.lang.String> childNames

EMPTY_NAME_ARRAY

private static final java.lang.String[] EMPTY_NAME_ARRAY

log

private static final java.util.logging.Logger log

modified

private boolean modified

prefs

private java.util.Map<java.lang.String,java.lang.String> prefs

root

protected final FilePreferences.RootNode root

Constructor Detail

FilePreferences

protected FilePreferences(java.util.prefs.AbstractPreferences parent,
                          java.lang.String name)

Method Detail

childrenNamesSpi

protected java.lang.String[] childrenNamesSpi()
                                       throws java.util.prefs.BackingStoreException

Specified by:

childrenNamesSpi in class java.util.prefs.AbstractPreferences

Throws:

java.util.prefs.BackingStoreException

childSpi

protected FilePreferences childSpi(java.lang.String name)

Specified by:

childSpi in class java.util.prefs.AbstractPreferences

createRoot

public static FilePreferences createRoot()

createRoot

public static FilePreferences createRoot(java.lang.String preferencesFilePath)

flush

public void flush()
           throws java.util.prefs.BackingStoreException

Overrides:

flush in class java.util.prefs.AbstractPreferences

Throws:

java.util.prefs.BackingStoreException

flushSpi

protected void flushSpi()
                 throws java.util.prefs.BackingStoreException

Specified by:

flushSpi in class java.util.prefs.AbstractPreferences

Throws:

java.util.prefs.BackingStoreException

getPreferencesFile

public java.io.File getPreferencesFile()

getRoot

public FilePreferences getRoot()

getSpi

protected java.lang.String getSpi(java.lang.String key)

Specified by:

getSpi in class java.util.prefs.AbstractPreferences

isModified

public boolean isModified()

keysSpi

protected java.lang.String[] keysSpi()
                              throws java.util.prefs.BackingStoreException

Specified by:

keysSpi in class java.util.prefs.AbstractPreferences

Throws:

java.util.prefs.BackingStoreException

nodePrefix

public java.lang.String nodePrefix()

Returns the absolute path and ensures that it ends with a slash (/) For child nodes this is the same as absolutePath() + '/' but for the root node it is just '/'.

putSpi

protected void putSpi(java.lang.String key,
                      java.lang.String value)

Specified by:

putSpi in class java.util.prefs.AbstractPreferences

readProps

protected void readProps()

removeNodeSpi

protected void removeNodeSpi()
                      throws java.util.prefs.BackingStoreException

Specified by:

removeNodeSpi in class java.util.prefs.AbstractPreferences

Throws:

java.util.prefs.BackingStoreException

removeSpi

protected void removeSpi(java.lang.String key)

Specified by:

removeSpi in class java.util.prefs.AbstractPreferences

rootNode

protected FilePreferences.RootNode rootNode()

setPreferencesFile

public void setPreferencesFile(java.io.File file)

sync

public void sync()
          throws java.util.prefs.BackingStoreException

Overrides:

sync in class java.util.prefs.AbstractPreferences

Throws:

java.util.prefs.BackingStoreException

syncSpi

protected void syncSpi()
                throws java.util.prefs.BackingStoreException

Specified by:

syncSpi in class java.util.prefs.AbstractPreferences

Throws:

java.util.prefs.BackingStoreException