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

Class OClusterPositionMapBucket

java.lang.Object

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

com.orientechnologies.orient.core.storage.impl.local.paginated.OClusterPositionMapBucket

public class OClusterPositionMapBucket
extends ODurablePage

Since:

10/7/13

Author:

Andrey Lomakin (a.lomakin-at-orientechnologies.com)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OClusterPositionMapBucket.PositionEntry

Field Summary

Fields

Modifier and Type	Field and Description
static byte	ALLOCATED
static int	ENTRY_SIZE
static byte	FILLED
static int	MAX_ENTRIES
static byte	NOT_EXISTENT
static byte	REMOVED

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

changes, CRC32_OFFSET, MAGIC_NUMBER_OFFSET, MAX_PAGE_SIZE_BYTES, NEXT_FREE_POSITION, WAL_POSITION_OFFSET, WAL_SEGMENT_OFFSET

Constructor Summary

Constructors

Constructor and Description
OClusterPositionMapBucket(OCacheEntry cacheEntry, OWALChanges changes)

Method Summary

Modifier and Type	Method and Description
int	add(long pageIndex, int recordPosition)
int	allocate()
boolean	exists(int index)
void	fillWithDeletedEntries()
OClusterPositionMapBucket.PositionEntry	get(int index)
int	getSize()
byte	getStatus(int index)
boolean	isFull()
OClusterPositionMapBucket.PositionEntry	remove(int index)
void	resurrect(int index)
void	set(int index, OClusterPositionMapBucket.PositionEntry entry)

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

deserializeFromDirectMemory, getBinaryValue, getByteValue, getChanges, getIntValue, getLogSequenceNumber, getLogSequenceNumberFromPage, getLongValue, getLsn, getObjectSizeInDirectMemory, getPageData, moveData, restoreChanges, setBinaryValue, setByteValue, setIntValue, setLongValue, setLsn, toString

Methods inherited from class java.lang.Object

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

Field Detail

NOT_EXISTENT

public static final byte NOT_EXISTENT

See Also:

Constant Field Values

REMOVED

public static final byte REMOVED

See Also:

Constant Field Values

FILLED

public static final byte FILLED

See Also:

Constant Field Values

ALLOCATED

public static final byte ALLOCATED

See Also:

Constant Field Values

ENTRY_SIZE

public static final int ENTRY_SIZE

See Also:

Constant Field Values

MAX_ENTRIES

public static final int MAX_ENTRIES

Constructor Detail

OClusterPositionMapBucket

public OClusterPositionMapBucket(OCacheEntry cacheEntry,
                                 OWALChanges changes)

Method Detail

fillWithDeletedEntries

public void fillWithDeletedEntries()
                            throws IOException

Throws:

IOException

add

public int add(long pageIndex,
               int recordPosition)
        throws IOException

Throws:

IOException

allocate

public int allocate()
             throws IOException

Throws:

IOException

get

public OClusterPositionMapBucket.PositionEntry get(int index)

set

public void set(int index,
                OClusterPositionMapBucket.PositionEntry entry)
         throws IOException

Throws:

IOException

resurrect

public void resurrect(int index)
               throws IOException

Throws:

IOException

isFull

public boolean isFull()

getSize

public int getSize()

remove

public OClusterPositionMapBucket.PositionEntry remove(int index)

exists

public boolean exists(int index)

getStatus

public byte getStatus(int index)