org.apache.jena.dboe.base.file

Class BlockAccessByteArray

java.lang.Object

org.apache.jena.dboe.base.file.BlockAccessByteArray

All Implemented Interfaces:

org.apache.jena.atlas.lib.Closeable, org.apache.jena.atlas.lib.Sync, BlockAccess

public class BlockAccessByteArray
extends Object
implements BlockAccess

FileAccess interface backed by a byte array.

Constructor Summary

Constructors

Constructor and Description
BlockAccessByteArray(String label)

Method Summary

Modifier and Type	Method and Description
Block	allocate(int size)
long	allocBoundary()
void	close()
String	getLabel()
boolean	isEmpty()
void	overwrite(Block block)
Block	read(long id)
void	resetAllocBoundary(long boundary) Reset the allocation space (i.e.
void	sync()
boolean	valid(long id)
void	write(Block block)

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockAccessByteArray

public BlockAccessByteArray(String label)

Method Detail

getLabel

public String getLabel()

Specified by:

getLabel in interface BlockAccess

allocate

public Block allocate(int size)

Specified by:

allocate in interface BlockAccess

allocBoundary

public long allocBoundary()

Specified by:

allocBoundary in interface BlockAccess

resetAllocBoundary

public void resetAllocBoundary(long boundary)

Description copied from interface: BlockAccess

Reset the allocation space (i.e. truncate). The boundary should be a number obtained from a previous call of allocLimit. It can not be greater than the current allocation boundary.

Specified by:

resetAllocBoundary in interface BlockAccess

read

public Block read(long id)

Specified by:

read in interface BlockAccess

write

public void write(Block block)

Specified by:

write in interface BlockAccess

overwrite

public void overwrite(Block block)

Specified by:

overwrite in interface BlockAccess

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface BlockAccess

valid

public boolean valid(long id)

Specified by:

valid in interface BlockAccess

sync

public void sync()

Specified by:

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

close

public void close()

Specified by:

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