io.netty.resolver.dns

Interface DnsCnameCache

All Known Implementing Classes:

DefaultDnsCnameCache, NoopDnsCnameCache

public interface DnsCnameCache

A cache for CNAMEs.

Method Summary

Modifier and Type	Method and Description
void	cache(String hostname, String cname, long originalTtl, EventLoop loop) Caches a cname entry that should be used for the given hostname.
void	clear() Clears all cached nameservers.
boolean	clear(String hostname) Clears the cached nameservers for the specified hostname.
String	get(String hostname) Returns the cached cname for the given hostname.

Method Detail

get

String get(String hostname)

Returns the cached cname for the given hostname.

Parameters:

hostname - the hostname

Returns:

the cached entries or an null if none.

cache

void cache(String hostname,
           String cname,
           long originalTtl,
           EventLoop loop)

Caches a cname entry that should be used for the given hostname.

Parameters:

hostname - the hostname

cname - the cname mapping.

originalTtl - the TTL as returned by the DNS server

loop - the EventLoop used to register the TTL timeout

clear

void clear()

Clears all cached nameservers.

See Also:

clear(String)

clear

boolean clear(String hostname)

Clears the cached nameservers for the specified hostname.

Returns:

true if and only if there was an entry for the specified host name in the cache and it has been removed by this method