Package com.mongodb.selector

Class LatencyMinimizingServerSelector

java.lang.Object

com.mongodb.selector.LatencyMinimizingServerSelector

All Implemented Interfaces:

ServerSelector

public class LatencyMinimizingServerSelector
extends Object
implements ServerSelector

A server selector that accepts only servers within the given ping-time latency difference from the faster of the servers.

Since:

3.0

Constructor Summary

Constructors

Constructor	Description
LatencyMinimizingServerSelector(long acceptableLatencyDifference, TimeUnit timeUnit)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
long	getAcceptableLatencyDifference(TimeUnit timeUnit)	Gets the acceptable latency difference.
int	hashCode()
List<ServerDescription>	select(ClusterDescription clusterDescription)	Select a list of server descriptions from the given cluster description according to some criteria.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LatencyMinimizingServerSelector

public LatencyMinimizingServerSelector(long acceptableLatencyDifference,
                                       TimeUnit timeUnit)

Parameters:

acceptableLatencyDifference - the maximum difference in ping-time latency between the fastest ping time and the slowest of the chosen servers

timeUnit - the time unit of the acceptableLatencyDifference

Method Detail

getAcceptableLatencyDifference

public long getAcceptableLatencyDifference(TimeUnit timeUnit)

Gets the acceptable latency difference.

Parameters:

timeUnit - the time unit to get it in.

Returns:

the acceptable latency difference in the specified time unit

select

public List<ServerDescription> select(ClusterDescription clusterDescription)

Description copied from interface: ServerSelector

Select a list of server descriptions from the given cluster description according to some criteria.

Specified by:

select in interface ServerSelector

Parameters:

clusterDescription - the cluster of servers to select from

Returns:

a non-null list of ServerDescriptions that meet the requirements of this ServerSelector. This may be empty.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object