com.orientechnologies.orient.core.storage.index.sbtreebonsai.local

Class OSysBucket

java.lang.Object

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

com.orientechnologies.orient.core.storage.index.sbtreebonsai.local.OBonsaiBucketAbstract

com.orientechnologies.orient.core.storage.index.sbtreebonsai.local.OSysBucket

public class OSysBucket
extends OBonsaiBucketAbstract

A system bucket for bonsai tree pages. Single per file.

Holds an information about:

• head of free list
• length of free list
• pointer to free space

Author:

Artem Orobets (enisher-at-gmail.com)

Field Summary

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

CRC32_OFFSET, MAGIC_NUMBER_OFFSET, MAX_PAGE_SIZE_BYTES, NEXT_FREE_POSITION, WAL_POSITION_OFFSET, WAL_SEGMENT_OFFSET

Constructor Summary

Constructors

Constructor and Description
OSysBucket(OCacheEntry cacheEntry)

Method Summary

Modifier and Type	Method and Description
long	freeListLength()
OBonsaiBucketPointer	getFreeListHead()
OBonsaiBucketPointer	getFreeSpacePointer()
void	init()
boolean	isInitialized()
void	setFreeListHead(OBonsaiBucketPointer pointer)
void	setFreeListLength(long length)
void	setFreeSpacePointer(OBonsaiBucketPointer pointer)

Methods inherited from class com.orientechnologies.orient.core.storage.index.sbtreebonsai.local.OBonsaiBucketAbstract

getBucketPointer, setBucketPointer

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, getShortValue, moveData, restoreChanges, setBinaryValue, setByteValue, setIntValue, setLongValue, setLsn, setShortValue, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

OSysBucket

public OSysBucket(OCacheEntry cacheEntry)

Method Detail

init

public void init()
          throws IOException

Throws:

IOException

isInitialized

public boolean isInitialized()

freeListLength

public long freeListLength()

setFreeListLength

public void setFreeListLength(long length)
                       throws IOException

Throws:

IOException

getFreeSpacePointer

public OBonsaiBucketPointer getFreeSpacePointer()

setFreeSpacePointer

public void setFreeSpacePointer(OBonsaiBucketPointer pointer)
                         throws IOException

Throws:

IOException

getFreeListHead

public OBonsaiBucketPointer getFreeListHead()

setFreeListHead

public void setFreeListHead(OBonsaiBucketPointer pointer)
                     throws IOException

Throws:

IOException