io.netty.channel

Class AdaptiveRecvByteBufAllocator

java.lang.Object

io.netty.channel.AdaptiveRecvByteBufAllocator

All Implemented Interfaces:

RecvByteBufAllocator

public class AdaptiveRecvByteBufAllocator
extends Object
implements RecvByteBufAllocator

The RecvByteBufAllocator that automatically increases and decreases the predicted buffer size on feed back.

It gradually increases the expected number of readable bytes if the previous read fully filled the allocated buffer. It gradually decreases the expected number of readable bytes if the read operation was not able to fill a certain amount of the allocated buffer two times consecutively. Otherwise, it keeps returning the same prediction.

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.RecvByteBufAllocator

RecvByteBufAllocator.Handle

Field Summary

Fields

Modifier and Type	Field and Description
static AdaptiveRecvByteBufAllocator	DEFAULT

Constructor Summary

Constructors

Constructor and Description
AdaptiveRecvByteBufAllocator(int minimum, int initial, int maximum) Creates a new predictor with the specified parameters.

Method Summary

Methods

Modifier and Type	Method and Description
RecvByteBufAllocator.Handle	newHandle() Creates a new handle.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final AdaptiveRecvByteBufAllocator DEFAULT

Constructor Detail

AdaptiveRecvByteBufAllocator

public AdaptiveRecvByteBufAllocator(int minimum,
                            int initial,
                            int maximum)

Creates a new predictor with the specified parameters.

Parameters:

minimum - the inclusive lower bound of the expected buffer size

initial - the initial buffer size when no feed back was received

maximum - the inclusive upper bound of the expected buffer size

Method Detail

newHandle

public RecvByteBufAllocator.Handle newHandle()

Description copied from interface: RecvByteBufAllocator

Creates a new handle. The handle provides the actual operations and keeps the internal information which is required for predicting an optimal buffer capacity.

Specified by:

newHandle in interface RecvByteBufAllocator