com.orientechnologies.orient.core.db.record.ridbag.sbtree

Class OSBTreeCollectionManagerAbstract

java.lang.Object

com.orientechnologies.orient.core.db.record.ridbag.sbtree.OSBTreeCollectionManagerAbstract

All Implemented Interfaces:

OCloseable, OSBTreeCollectionManager, OOrientShutdownListener, OOrientStartupListener

Direct Known Subclasses:

OSBTreeCollectionManagerRemote, OSBTreeCollectionManagerShared

public abstract class OSBTreeCollectionManagerAbstract
extends Object
implements OCloseable, OSBTreeCollectionManager, OOrientStartupListener, OOrientShutdownListener

Author:

Artem Orobets (enisher-at-gmail.com)

Field Summary

Fields

Modifier and Type	Field and Description
protected int	cacheMaxSize
static String	DEFAULT_EXTENSION
protected int	evictionThreshold
static String	FILE_NAME_PREFIX
protected Object[]	locks
protected int	mask
protected int	shift

Constructor Summary

Constructors

Constructor and Description
OSBTreeCollectionManagerAbstract(OStorage storage)

Method Summary

Modifier and Type	Method and Description
void	clear()
void	close() Closes resources inside of call of OStorage#close().
OSBTreeBonsai<OIdentifiable,Integer>	createAndLoadTree(int clusterId)
OBonsaiCollectionPointer	createSBTree(int clusterId, UUID ownerUUID)
protected abstract OSBTreeBonsai<OIdentifiable,Integer>	createTree(int clusterId)
void	delete(OBonsaiCollectionPointer collectionPointer)
static String	generateLockName(int clusterId) Generates a lock name for the given cluster ID.
OSBTreeBonsai<OIdentifiable,Integer>	loadSBTree(OBonsaiCollectionPointer collectionPointer)
protected abstract OSBTreeBonsai<OIdentifiable,Integer>	loadTree(OBonsaiCollectionPointer collectionPointer)
void	onShutdown()
void	onStartup()
void	releaseSBTree(OBonsaiCollectionPointer collectionPointer)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.orientechnologies.orient.core.db.record.ridbag.sbtree.OSBTreeCollectionManager

changedIds, clearChangedIds, clearPendingCollections, listenForChanges, updateCollectionPointer

Field Detail

FILE_NAME_PREFIX

public static final String FILE_NAME_PREFIX

See Also:

Constant Field Values

DEFAULT_EXTENSION

public static final String DEFAULT_EXTENSION

See Also:

Constant Field Values

evictionThreshold

protected final int evictionThreshold

cacheMaxSize

protected final int cacheMaxSize

shift

protected final int shift

mask

protected final int mask

locks

protected final Object[] locks

Constructor Detail

OSBTreeCollectionManagerAbstract

public OSBTreeCollectionManagerAbstract(OStorage storage)

Method Detail

generateLockName

public static String generateLockName(int clusterId)

Generates a lock name for the given cluster ID.

Parameters:

clusterId - the cluster ID to generate the lock name for.

Returns:

the generated lock name.

onStartup

public void onStartup()

Specified by:

onStartup in interface OOrientStartupListener

onShutdown

public void onShutdown()

Specified by:

onShutdown in interface OOrientShutdownListener

createAndLoadTree

public OSBTreeBonsai<OIdentifiable,Integer> createAndLoadTree(int clusterId)

Specified by:

createAndLoadTree in interface OSBTreeCollectionManager

createSBTree

public OBonsaiCollectionPointer createSBTree(int clusterId,
                                             UUID ownerUUID)

Specified by:

createSBTree in interface OSBTreeCollectionManager

loadSBTree

public OSBTreeBonsai<OIdentifiable,Integer> loadSBTree(OBonsaiCollectionPointer collectionPointer)

Specified by:

loadSBTree in interface OSBTreeCollectionManager

releaseSBTree

public void releaseSBTree(OBonsaiCollectionPointer collectionPointer)

Specified by:

releaseSBTree in interface OSBTreeCollectionManager

delete

public void delete(OBonsaiCollectionPointer collectionPointer)

Specified by:

delete in interface OSBTreeCollectionManager

close

public void close()

Description copied from interface: OCloseable

Closes resources inside of call of OStorage#close(). So do not use locks when you call this method or you may have deadlock during storage close. This method is completely house keeping method and plays role of Object#finalize() in case of you need to clean up resources after storage is closed.

Specified by:

close in interface OCloseable

clear

public void clear()

createTree

protected abstract OSBTreeBonsai<OIdentifiable,Integer> createTree(int clusterId)

loadTree

protected abstract OSBTreeBonsai<OIdentifiable,Integer> loadTree(OBonsaiCollectionPointer collectionPointer)