org.apache.solr.core
Class EphemeralDirectoryFactory

java.lang.Object
  org.apache.solr.core.DirectoryFactory
      org.apache.solr.core.CachingDirectoryFactory
          org.apache.solr.core.EphemeralDirectoryFactory

All Implemented Interfaces:

Closeable, NamedListInitializedPlugin

Direct Known Subclasses:

RAMDirectoryFactory

public abstract class EphemeralDirectoryFactory
extends CachingDirectoryFactory

Directory provider for implementations that do not persist over reboots.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.core.CachingDirectoryFactory

CachingDirectoryFactory.CacheValue, CachingDirectoryFactory.CloseListener

Nested classes/interfaces inherited from class org.apache.solr.core.DirectoryFactory

DirectoryFactory.DirContext

Field Summary

Fields inherited from class org.apache.solr.core.CachingDirectoryFactory

byDirectoryCache, byPathCache, closeListeners, removeEntries

Fields inherited from class org.apache.solr.core.DirectoryFactory

IOCONTEXT_NO_CACHE

Constructor Summary

EphemeralDirectoryFactory()

Method Summary

boolean	exists(String path) Returns true if a Directory exists for a given path.
boolean	isAbsolute(String path)
boolean	isPersistent()
void	remove(Directory dir) Removes the Directory's persistent storage.
void	remove(String path) This remove is special in that it may be called even after the factory has been closed.

Methods inherited from class org.apache.solr.core.CachingDirectoryFactory

addCloseListener, close, create, doneWithDirectory, get, getLivePaths, incRef, init, normalize, release, remove, remove, removeDirectory, stripTrailingSlash

Methods inherited from class org.apache.solr.core.DirectoryFactory

empty, getDataHome, move, searchersReserveCommitPoints, sizeOf, sizeOfDirectory

Methods inherited from class java.lang.Object

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

Constructor Detail

EphemeralDirectoryFactory

public EphemeralDirectoryFactory()

Method Detail

exists

public boolean exists(String path)
               throws IOException

Description copied from class: DirectoryFactory

Returns true if a Directory exists for a given path.

Overrides:

exists in class CachingDirectoryFactory

Throws:

IOException - If there is a low-level I/O error.

isPersistent

public boolean isPersistent()

Specified by:

isPersistent in class DirectoryFactory

Returns:

true if data is kept after close.

isAbsolute

public boolean isAbsolute(String path)

Overrides:

isAbsolute in class DirectoryFactory

Parameters:

path - the path to check

Returns:

true if absolute, as in not relative

remove

public void remove(Directory dir)
            throws IOException

Description copied from class: DirectoryFactory

Removes the Directory's persistent storage. For example: A file system impl may remove the on disk directory.

Overrides:

remove in class CachingDirectoryFactory

Throws:

IOException - If there is a low-level I/O error.

remove

public void remove(String path)
            throws IOException

Description copied from class: DirectoryFactory

This remove is special in that it may be called even after the factory has been closed. Remove only makes sense for persistent directory factories.

Overrides:

remove in class CachingDirectoryFactory

Parameters:

path - to remove

Throws:

IOException - If there is a low-level I/O error.