Package com.linecorp.armeria.client

Interface DnsCacheListener

All Known Implementing Classes:

DnsAddressEndpointGroup, DnsServiceEndpointGroup, DnsTextEndpointGroup

@UnstableApi
public interface DnsCacheListener

Listens to the DnsCache events.

Method Summary

Modifier and Type	Method	Description
void	onEviction(io.netty.handler.codec.dns.DnsQuestion question, @Nullable List<io.netty.handler.codec.dns.DnsRecord> records, @Nullable UnknownHostException cause)	Invoked when an eviction occurred for the DnsRecords.
void	onRemoval(io.netty.handler.codec.dns.DnsQuestion question, @Nullable List<io.netty.handler.codec.dns.DnsRecord> records, @Nullable UnknownHostException cause)	Invoked when the DnsRecords expired due to TTL or negative TTL.

Method Details

onRemoval

void onRemoval(io.netty.handler.codec.dns.DnsQuestion question,
 @Nullable
 @Nullable List<io.netty.handler.codec.dns.DnsRecord> records,
 @Nullable
 @Nullable UnknownHostException cause)

Invoked when the DnsRecords expired due to TTL or negative TTL.

Parameters:

question - the DNS question.

records - the result of a successful DNS resolution. null if failed.

cause - the cause of a failed DNS resolution. null if succeeded.

onEviction

void onEviction(io.netty.handler.codec.dns.DnsQuestion question,
 @Nullable
 @Nullable List<io.netty.handler.codec.dns.DnsRecord> records,
 @Nullable
 @Nullable UnknownHostException cause)

Invoked when an eviction occurred for the DnsRecords. The eviction occurs due to exceeding the maximum size.

Parameters:

question - the DNS question.

records - the result of a successful DNS resolution. null if failed.

cause - the cause of a failed DNS resolution. null if succeeded.