org.eclipse.jgit.storage.dfs
Class DfsBlockCacheConfig

java.lang.Object
  org.eclipse.jgit.storage.dfs.DfsBlockCacheConfig

public class DfsBlockCacheConfig
extends Object

Configuration parameters for DfsBlockCache.

Field Summary

static int	KB 1024 (number of bytes in one kibibyte/kilobyte)
static int	MB 1024 KB (number of bytes in one mebibyte/megabyte)

Constructor Summary

DfsBlockCacheConfig()
Create a default configuration.

Method Summary

DfsBlockCacheConfig	fromConfig(Config rc) Update properties by setting fields from the configuration.
long	getBlockLimit()
int	getBlockSize()
int	getReadAheadLimit()
ThreadPoolExecutor	getReadAheadService()
DfsBlockCacheConfig	setBlockLimit(long newLimit)
DfsBlockCacheConfig	setBlockSize(int newSize)
DfsBlockCacheConfig	setReadAheadLimit(int newSize)
DfsBlockCacheConfig	setReadAheadService(ThreadPoolExecutor svc)

Methods inherited from class java.lang.Object

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

Field Detail

KB

public static final int KB

1024 (number of bytes in one kibibyte/kilobyte)

See Also:

Constant Field Values

MB

public static final int MB

1024 KB (number of bytes in one mebibyte/megabyte)

See Also:

Constant Field Values

Constructor Detail

DfsBlockCacheConfig

public DfsBlockCacheConfig()

Create a default configuration.

Method Detail

getBlockLimit

public long getBlockLimit()

Returns:

maximum number bytes of heap memory to dedicate to caching pack file data. Default is 32 MB.

setBlockLimit

public DfsBlockCacheConfig setBlockLimit(long newLimit)

Parameters:

newLimit - maximum number bytes of heap memory to dedicate to caching pack file data.

Returns:

this

getBlockSize

public int getBlockSize()

Returns:

size in bytes of a single window mapped or read in from the pack file. Default is 64 KB.

setBlockSize

public DfsBlockCacheConfig setBlockSize(int newSize)

Parameters:

newSize - size in bytes of a single window read in from the pack file.

Returns:

this

getReadAheadLimit

public int getReadAheadLimit()

Returns:

number of bytes to read ahead sequentially by.

setReadAheadLimit

public DfsBlockCacheConfig setReadAheadLimit(int newSize)

Parameters:

newSize - new read-ahead limit, in bytes.

Returns:

this

getReadAheadService

public ThreadPoolExecutor getReadAheadService()

Returns:

service to perform read-ahead of sequential blocks.

setReadAheadService

public DfsBlockCacheConfig setReadAheadService(ThreadPoolExecutor svc)

Parameters:

svc - service to perform read-ahead of sequential blocks with. If not null the RejectedExecutionHandler must be managed by the JGit DFS library and not the application.

Returns:

this.

fromConfig

public DfsBlockCacheConfig fromConfig(Config rc)

Update properties by setting fields from the configuration.

If a property is not defined in the configuration, then it is left unmodified.

Parameters:

rc - configuration to read properties from.

Returns:

this