org.netbeans.core.startup.layers
Class ModuleLayeredFileSystem

java.lang.Object
  org.openide.filesystems.FileSystem
      org.openide.filesystems.MultiFileSystem
          org.netbeans.core.startup.layers.ModuleLayeredFileSystem

All Implemented Interfaces:

Serializable, EventListener, LookupListener

public class ModuleLayeredFileSystem
extends MultiFileSystem
implements LookupListener

Layered file system serving itself as either the user or installation layer. Holds one layer of a writable system directory, and some number of module layers.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.openide.filesystems.FileSystem

FileSystem.AtomicAction, FileSystem.Environment, FileSystem.HtmlStatus, FileSystem.Status

Field Summary

Fields inherited from class org.openide.filesystems.FileSystem

PROP_DISPLAY_NAME, PROP_HIDDEN, PROP_READ_ONLY, PROP_ROOT, PROP_SYSTEM_NAME, PROP_VALID

Method Summary

void	addURLs(Collection<URL> urls) Adds few URLs.
static List<URL>	collectLayers(ClassLoader loader)
static ModuleLayeredFileSystem	getInstallationModuleLayer() Get the installation layer.
FileSystem[]	getLayers() Get all layers.
static ModuleLayeredFileSystem	getUserModuleLayer() Get the user layer.
void	removeURLs(Collection<URL> urls) Removes few URLs.
void	resultChanged(LookupEvent ev) Refresh layers
void	setURLs(List<URL> urls) Change the list of module layers URLs.

Methods inherited from class org.openide.filesystems.MultiFileSystem

addNotify, createLocksOn, createWritableOn, createWritableOnForRename, find, findResource, findResourceOn, findSystem, getActions, getActions, getDelegates, getDisplayName, getPropagateMasks, getRoot, hiddenFiles, hideResource, isReadOnly, markUnimportant, notifyMigration, prepareEnvironment, refresh, removeNotify, setDelegates, setPropagateMasks

Methods inherited from class org.openide.filesystems.FileSystem

addFileChangeListener, addFileStatusListener, addPropertyChangeListener, addVetoableChangeListener, createTempFile, fireFileStatusChanged, firePropertyChange, fireVetoableChange, getCapability, getStatus, getSystemName, getTempFolder, isDefault, isHidden, isPersistent, isValid, removeFileChangeListener, removeFileStatusListener, removePropertyChangeListener, removeVetoableChangeListener, runAtomicAction, setCapability, setHidden, setSystemName, toString

Methods inherited from class java.lang.Object

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

Method Detail

getLayers

public final FileSystem[] getLayers()

Get all layers.

Returns:

all filesystems making layers

getInstallationModuleLayer

public static ModuleLayeredFileSystem getInstallationModuleLayer()

Get the installation layer. You can take advantage of the specialized return type if working within the core.

getUserModuleLayer

public static ModuleLayeredFileSystem getUserModuleLayer()

Get the user layer. You can take advantage of the specialized return type if working within the core.

setURLs

public void setURLs(List<URL> urls)
             throws Exception

Change the list of module layers URLs.

Parameters:

urls - the urls describing module layers to use. List

Throws:

Exception

addURLs

public void addURLs(Collection<URL> urls)
             throws Exception

Adds few URLs.

Throws:

Exception

removeURLs

public void removeURLs(Collection<URL> urls)
                throws Exception

Removes few URLs.

Throws:

Exception

resultChanged

public void resultChanged(LookupEvent ev)

Refresh layers

Specified by:

resultChanged in interface LookupListener

collectLayers

public static List<URL> collectLayers(ClassLoader loader)
                               throws IOException

Throws:

IOException