jetbrains.exodus.vfs

Class VfsConfig

java.lang.Object

jetbrains.exodus.vfs.VfsConfig

public class VfsConfig
extends java.lang.Object

VfsConfig is used to configure creation of VirtualFileSystem. It defines which type of ClusteringStrategy to use and whether the VirtualFileSystem should accumulate all changes in RAM before flushing or committing transactions. If transactions are too heavy to fit changes in RAM, then VirtualFileSystem uses temporary files on underlying storage device.

See Also:

VirtualFileSystem.VirtualFileSystem(Environment, VfsConfig), ClusteringStrategy

Field Summary

Fields

Modifier and Type	Field and Description
static VfsConfig	DEFAULT

Constructor Summary

Constructors

Constructor and Description
VfsConfig()

Method Summary

Modifier and Type	Method and Description
boolean	getAccumulateChangesInRAM()
@NotNull ClusteringStrategy	getClusteringStrategy() Returns ClusteringStrategy used by the VirtualFileSystem to save contents of a file.
void	setAccumulateChangesInRAM(boolean accumulateChangesInRAM)
void	setClusteringStrategy(@NotNull ClusteringStrategy strategy) Sets ClusteringStrategy used by the VirtualFileSystem to save contents of a file.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final VfsConfig DEFAULT

Constructor Detail

VfsConfig

public VfsConfig()

Method Detail

getClusteringStrategy

@NotNull
public @NotNull ClusteringStrategy getClusteringStrategy()

Returns ClusteringStrategy used by the VirtualFileSystem to save contents of a file. Default value used by the VfsConfig is ClusteringStrategy.QUADRATIC

Returns:

ClusteringStrategy used by the VirtualFileSystem to save contents of a file

setClusteringStrategy

public void setClusteringStrategy(@NotNull
                                  @NotNull ClusteringStrategy strategy)

Sets ClusteringStrategy used by the VirtualFileSystem to save contents of a file.

Parameters:

strategy - ClusteringStrategy instance

getAccumulateChangesInRAM

public boolean getAccumulateChangesInRAM()

Returns:

true if the VirtualFileSystem should accumulate all changes in RAM before flushing or committing transactions

setAccumulateChangesInRAM

public void setAccumulateChangesInRAM(boolean accumulateChangesInRAM)