software.amazon.jdbc.plugin.failover

Interface WriterFailoverHandler

All Known Implementing Classes:

ClusterAwareWriterFailoverHandler

public interface WriterFailoverHandler

Interface for Writer Failover Process handler. This handler implements all necessary logic to try to reconnect to a current writer host or to a newly elected writer.

Method Summary

Modifier and Type	Method and Description
WriterFailoverResult	failover(java.util.List<HostSpec> currentTopology) Called to start Writer Failover Process.
java.util.Map<java.lang.String,HostAvailability>	getHostAvailabilityMap() Get the host availability map for the failover handler.

Method Detail

failover

WriterFailoverResult failover(java.util.List<HostSpec> currentTopology)
                       throws java.sql.SQLException

Called to start Writer Failover Process.

Parameters:

currentTopology - Cluster current topology

Returns:

WriterFailoverResult The results of this process.

Throws:

java.sql.SQLException - indicating whether the failover attempt was successful.

getHostAvailabilityMap

java.util.Map<java.lang.String,HostAvailability> getHostAvailabilityMap()

Get the host availability map for the failover handler. This map will be populated with host availability information during the failover process and can be used to determine which hosts are available.

Returns:

the host availability map for the failover handler.