Package com.orientechnologies.orient.core.storage.cluster.v2

Class FreeSpaceMap

java.lang.Object

com.orientechnologies.common.concur.resource.OSharedResourceAbstract

com.orientechnologies.orient.core.storage.impl.local.paginated.base.ODurableComponent

com.orientechnologies.orient.core.storage.cluster.v2.FreeSpaceMap

public final class FreeSpaceMap
extends ODurableComponent

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEF_EXTENSION

Fields inherited from class com.orientechnologies.orient.core.storage.impl.local.paginated.base.ODurableComponent

atomicOperationsManager, readCache, storage, writeCache

Fields inherited from class com.orientechnologies.common.concur.resource.OSharedResourceAbstract

lock

Constructor Summary

Constructors

Constructor	Description
FreeSpaceMap(OAbstractPaginatedStorage storage, String name, String extension, String lockName)

Method Summary

Modifier and Type	Method	Description
void	create(OAtomicOperation atomicOperation)
void	delete(OAtomicOperation atomicOperation)
boolean	exists(OAtomicOperation atomicOperation)
int	findFreePage(int requiredSize)
void	open(OAtomicOperation atomicOperation)
void	updatePageFreeSpace(OAtomicOperation atomicOperation, int pageIndex, int freeSpace)

Methods inherited from class com.orientechnologies.orient.core.storage.impl.local.paginated.base.ODurableComponent

addFile, addPage, calculateInsideComponentOperation, deleteFile, executeInsideComponentOperation, getExtension, getFilledUpTo, getFullName, getLockName, getName, isFileExists, loadOrAddPageForWrite, loadPageForRead, loadPageForWrite, openFile, releasePageFromRead, releasePageFromWrite, setName, truncateFile, tryExecuteInsideComponentOperation

Methods inherited from class com.orientechnologies.common.concur.resource.OSharedResourceAbstract

acquireExclusiveLock, acquireSharedLock, releaseExclusiveLock, releaseSharedLock

Methods inherited from class java.lang.Object

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

Field Details

DEF_EXTENSION

public static final String DEF_EXTENSION

See Also:

• Constant Field Values

Constructor Details

FreeSpaceMap

public FreeSpaceMap(OAbstractPaginatedStorage storage,
 String name,
 String extension,
 String lockName)

Method Details

exists

public boolean exists(OAtomicOperation atomicOperation)

create

public void create(OAtomicOperation atomicOperation)
            throws IOException

Throws:

IOException

open

public void open(OAtomicOperation atomicOperation)
          throws IOException

Throws:

IOException

findFreePage

public int findFreePage(int requiredSize)
                 throws IOException

Throws:

IOException

updatePageFreeSpace

public void updatePageFreeSpace(OAtomicOperation atomicOperation,
 int pageIndex,
 int freeSpace)
                         throws IOException

Throws:

IOException

delete

public void delete(OAtomicOperation atomicOperation)
            throws IOException

Throws:

IOException