org.apache.jena.dboe.trans.bplustree

Class BlockTracker

java.lang.Object

org.apache.jena.dboe.trans.bplustree.BlockTracker

All Implemented Interfaces:

org.apache.jena.atlas.lib.Closeable, org.apache.jena.atlas.lib.Sync, org.apache.jena.dboe.base.block.BlockMgr

public class BlockTracker
extends Object
implements org.apache.jena.dboe.base.block.BlockMgr

Track the lifecycles of allocate-write, getRead-promote-write and getWrite-write. Does not track read only or iterators blocks.

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	collectHistory
static org.slf4j.Logger	logger

Method Summary

Modifier and Type	Method and Description
org.apache.jena.dboe.base.block.Block	allocate(int blockSize)
long	allocLimit()
void	beginRead()
void	beginUpdate()
void	clearAll()
void	clearHistory()
void	close()
void	endRead()
void	endUpdate()
void	free(org.apache.jena.dboe.base.block.Block block)
String	getLabel()
org.apache.jena.dboe.base.block.Block	getRead(long id)
org.apache.jena.dboe.base.block.Block	getWrite(long id)
boolean	isClosed()
boolean	isEmpty()
void	overwrite(org.apache.jena.dboe.base.block.Block block)
org.apache.jena.dboe.base.block.Block	promote(org.apache.jena.dboe.base.block.Block block)
void	release(org.apache.jena.dboe.base.block.Block block)
void	resetAlloc(long boundary)
void	sync()
void	syncForce()
String	toString()
static org.apache.jena.dboe.base.block.BlockMgr	track(org.apache.jena.dboe.base.block.BlockMgr blkMgr)
boolean	valid(int id)
void	write(org.apache.jena.dboe.base.block.Block block)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

logger

public static org.slf4j.Logger logger

collectHistory

public static boolean collectHistory

Method Detail

clearHistory

public void clearHistory()

clearAll

public void clearAll()

track

public static org.apache.jena.dboe.base.block.BlockMgr track(org.apache.jena.dboe.base.block.BlockMgr blkMgr)

allocate

public org.apache.jena.dboe.base.block.Block allocate(int blockSize)

Specified by:

allocate in interface org.apache.jena.dboe.base.block.BlockMgr

getRead

public org.apache.jena.dboe.base.block.Block getRead(long id)

Specified by:

getRead in interface org.apache.jena.dboe.base.block.BlockMgr

getWrite

public org.apache.jena.dboe.base.block.Block getWrite(long id)

Specified by:

getWrite in interface org.apache.jena.dboe.base.block.BlockMgr

promote

public org.apache.jena.dboe.base.block.Block promote(org.apache.jena.dboe.base.block.Block block)

Specified by:

promote in interface org.apache.jena.dboe.base.block.BlockMgr

release

public void release(org.apache.jena.dboe.base.block.Block block)

Specified by:

release in interface org.apache.jena.dboe.base.block.BlockMgr

write

public void write(org.apache.jena.dboe.base.block.Block block)

Specified by:

write in interface org.apache.jena.dboe.base.block.BlockMgr

overwrite

public void overwrite(org.apache.jena.dboe.base.block.Block block)

Specified by:

overwrite in interface org.apache.jena.dboe.base.block.BlockMgr

free

public void free(org.apache.jena.dboe.base.block.Block block)

Specified by:

free in interface org.apache.jena.dboe.base.block.BlockMgr

sync

public void sync()

Specified by:

sync in interface org.apache.jena.atlas.lib.Sync

Specified by:

sync in interface org.apache.jena.dboe.base.block.BlockMgr

syncForce

public void syncForce()

Specified by:

syncForce in interface org.apache.jena.dboe.base.block.BlockMgr

close

public void close()

Specified by:

close in interface org.apache.jena.atlas.lib.Closeable

Specified by:

close in interface org.apache.jena.dboe.base.block.BlockMgr

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface org.apache.jena.dboe.base.block.BlockMgr

allocLimit

public long allocLimit()

Specified by:

allocLimit in interface org.apache.jena.dboe.base.block.BlockMgr

resetAlloc

public void resetAlloc(long boundary)

Specified by:

resetAlloc in interface org.apache.jena.dboe.base.block.BlockMgr

valid

public boolean valid(int id)

Specified by:

valid in interface org.apache.jena.dboe.base.block.BlockMgr

isClosed

public boolean isClosed()

Specified by:

isClosed in interface org.apache.jena.dboe.base.block.BlockMgr

beginRead

public void beginRead()

Specified by:

beginRead in interface org.apache.jena.dboe.base.block.BlockMgr

endRead

public void endRead()

Specified by:

endRead in interface org.apache.jena.dboe.base.block.BlockMgr

beginUpdate

public void beginUpdate()

Specified by:

beginUpdate in interface org.apache.jena.dboe.base.block.BlockMgr

endUpdate

public void endUpdate()

Specified by:

endUpdate in interface org.apache.jena.dboe.base.block.BlockMgr

toString

public String toString()

Overrides:

toString in class Object

getLabel

public String getLabel()

Specified by:

getLabel in interface org.apache.jena.dboe.base.block.BlockMgr