org.apache.hudi.common.util

Class DefaultSizeEstimator<T>

java.lang.Object

org.apache.hudi.common.util.DefaultSizeEstimator<T>

Type Parameters:

T -

All Implemented Interfaces:

Serializable, SizeEstimator<T>

public class DefaultSizeEstimator<T>
extends Object
implements SizeEstimator<T>, Serializable

Default implementation of size-estimator that uses Twitter's ObjectSizeCalculator.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultSizeEstimator()

Method Summary

Modifier and Type	Method and Description
long	sizeEstimate(T t) This method is used to estimate the size of a payload in memory.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultSizeEstimator

public DefaultSizeEstimator()

Method Detail

sizeEstimate

public long sizeEstimate(T t)

Description copied from interface: SizeEstimator

This method is used to estimate the size of a payload in memory. The default implementation returns the total allocated size, in bytes, of the object and all other objects reachable from it

Specified by:

sizeEstimate in interface SizeEstimator<T>