org.apache.pig.data
Class SizeUtil

java.lang.Object
  org.apache.pig.data.SizeUtil

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class SizeUtil
extends Object

Utility functions for estimating size of objects of pig types

Constructor Summary

SizeUtil()

Method Summary

static long	getMapEntrySize(Object key, Object value)
static long	getPigObjMemSize(Object o)
static long	roundToEight(long i) Memory size of objects are rounded to multiple of 8 bytes

Methods inherited from class java.lang.Object

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

Constructor Detail

SizeUtil

public SizeUtil()

Method Detail

getPigObjMemSize

public static long getPigObjMemSize(Object o)

getMapEntrySize

public static long getMapEntrySize(Object key,
                                   Object value)

roundToEight

public static long roundToEight(long i)

Memory size of objects are rounded to multiple of 8 bytes

Parameters:

i -

Returns:

i rounded to a equal of higher multiple of 8