org.postgresql.hostchooser

Class MultiHostChooser

java.lang.Object

org.postgresql.hostchooser.MultiHostChooser

All Implemented Interfaces:

Iterable<CandidateHost>, HostChooser

public class MultiHostChooser
extends Object
implements HostChooser

HostChooser that keeps track of known host statuses.

Method Summary

Modifier and Type	Method and Description
static boolean	isUsingAutoLoadBalance(Properties props)
static boolean	isVaildPriorityLoadBalance(Properties props) Determine whether configuring the priority load balancing is valid; if using priority load balancing, "autoBalance" should be start with priority and end with number and the number of CNs with priority should be less than the number of CNs on the URL ; otherwise, return false.
Iterator<CandidateHost>	iterator() Lists connection hosts in preferred order.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

isVaildPriorityLoadBalance

public static boolean isVaildPriorityLoadBalance(Properties props)

Determine whether configuring the priority load balancing is valid; if using priority load balancing, "autoBalance" should be start with priority and end with number and the number of CNs with priority should be less than the number of CNs on the URL ; otherwise, return false. testIsVaildPriorityLoadBalance Overwrite the function test.

Parameters:

props - : Connection properties

isUsingAutoLoadBalance

public static boolean isUsingAutoLoadBalance(Properties props)

iterator

public Iterator<CandidateHost> iterator()

Description copied from interface: HostChooser

Lists connection hosts in preferred order.

Specified by:

iterator in interface Iterable<CandidateHost>

Specified by:

iterator in interface HostChooser

Returns:

connection hosts in preferred order.