Package org.apache.arrow.memory.rounding

Class SegmentRoundingPolicy

java.lang.Object

org.apache.arrow.memory.rounding.SegmentRoundingPolicy

All Implemented Interfaces:

RoundingPolicy

public class SegmentRoundingPolicy
extends Object
implements RoundingPolicy

The rounding policy that each buffer size must a multiple of the segment size.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	MIN_SEGMENT_SIZE	The minimal segment size.

Constructor Summary

Constructors

Constructor	Description
SegmentRoundingPolicy(int segmentSize)	Constructor for the segment rounding policy.

Method Summary

Modifier and Type	Method	Description
long	getRoundedSize(long requestSize)
int	getSegmentSize()

Methods inherited from class java.lang.Object

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

Field Details

MIN_SEGMENT_SIZE

public static final long MIN_SEGMENT_SIZE

The minimal segment size.

See Also:

• Constant Field Values

Constructor Details

SegmentRoundingPolicy

public SegmentRoundingPolicy(int segmentSize)

Constructor for the segment rounding policy.

Parameters:

segmentSize - the segment size.

Throws:

IllegalArgumentException - if the segment size is smaller than MIN_SEGMENT_SIZE, or is not a power of 2.

Method Details

getRoundedSize

public long getRoundedSize(long requestSize)

Specified by:

getRoundedSize in interface RoundingPolicy

getSegmentSize

public int getSegmentSize()