com.fasterxml.sort
Class SortConfig

java.lang.Object
  com.fasterxml.sort.SortConfig

public class SortConfig
extends Object

Configuration object used for changing details of sorting process. Default settings are usable, so often instance is created without arguments and used as is.

Field Summary

protected long	_maxMemoryUsage
protected int	_mergeFactor
protected TempFileProvider	_tempFileProvider
static long	DEFAULT_MEMORY_USAGE By default we will use 40 megs for pre-sorting.
static int	DEFAULT_MERGE_FACTOR Default merge sort is 16-way sort (using 16 input files concurrently)

Constructor Summary

	SortConfig()
protected	SortConfig(SortConfig base, int mergeFactor)
protected	SortConfig(SortConfig base, long maxMem)
protected	SortConfig(SortConfig base, TempFileProvider prov)

Method Summary

long	getMaxMemoryUsage()
int	getMergeFactor()
TempFileProvider	getTempFileProvider()
SortConfig	withMaxMemoryUsage(long maxMem) Method for constructing configuration instance that defines that maximum amount of memory to use for pre-sorting.
SortConfig	withTempFileProvider(TempFileProvider provider)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MEMORY_USAGE

public static final long DEFAULT_MEMORY_USAGE

By default we will use 40 megs for pre-sorting.

See Also:

Constant Field Values

DEFAULT_MERGE_FACTOR

public static final int DEFAULT_MERGE_FACTOR

Default merge sort is 16-way sort (using 16 input files concurrently)

See Also:

Constant Field Values

_mergeFactor

protected int _mergeFactor

_maxMemoryUsage

protected long _maxMemoryUsage

_tempFileProvider

protected TempFileProvider _tempFileProvider

Constructor Detail

SortConfig

public SortConfig()

SortConfig

protected SortConfig(SortConfig base,
                     int mergeFactor)

SortConfig

protected SortConfig(SortConfig base,
                     long maxMem)

SortConfig

protected SortConfig(SortConfig base,
                     TempFileProvider prov)

Method Detail

getMergeFactor

public int getMergeFactor()

getMaxMemoryUsage

public long getMaxMemoryUsage()

getTempFileProvider

public TempFileProvider getTempFileProvider()

withMaxMemoryUsage

public SortConfig withMaxMemoryUsage(long maxMem)

Method for constructing configuration instance that defines that maximum amount of memory to use for pre-sorting. This is generally a crude approximation and implementations make best effort to honor it.

Parameters:

maxMem - Maximum memory that pre-sorted should use for in-memory sorting

Returns:

New

withTempFileProvider

public SortConfig withTempFileProvider(TempFileProvider provider)