public class DefaultAuthoritativeDnsServerCache extends java.lang.Object implements AuthoritativeDnsServerCache
AuthoritativeDnsServerCache, backed by a ConcurrentMap.| 构造器和说明 |
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DefaultAuthoritativeDnsServerCache()
Create a cache that respects the TTL returned by the DNS server.
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DefaultAuthoritativeDnsServerCache(int minTtl,
int maxTtl,
java.util.Comparator<java.net.InetSocketAddress> comparator)
Create a cache.
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| 限定符和类型 | 方法和说明 |
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void |
cache(java.lang.String hostname,
java.net.InetSocketAddress address,
long originalTtl,
EventLoop loop)
Caches a nameserver that should be used to resolve the given hostname.
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void |
clear()
Clears all cached nameservers.
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boolean |
clear(java.lang.String hostname)
Clears the cached nameservers for the specified hostname.
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DnsServerAddressStream |
get(java.lang.String hostname)
Returns the cached nameservers that should be used to resolve the given hostname.
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java.lang.String |
toString() |
public DefaultAuthoritativeDnsServerCache()
public DefaultAuthoritativeDnsServerCache(int minTtl,
int maxTtl,
java.util.Comparator<java.net.InetSocketAddress> comparator)
minTtl - the minimum TTLmaxTtl - the maximum TTLcomparator - the Comparator to order the InetSocketAddress for a hostname or null
if insertion order should be used.public DnsServerAddressStream get(java.lang.String hostname)
AuthoritativeDnsServerCacheDnsServerAddressStream may contain unresolved InetSocketAddresses that will be resolved
when needed while resolving other domain names.get 在接口中 AuthoritativeDnsServerCachehostname - the hostnamenull if none.public void cache(java.lang.String hostname,
java.net.InetSocketAddress address,
long originalTtl,
EventLoop loop)
AuthoritativeDnsServerCachecache 在接口中 AuthoritativeDnsServerCachehostname - the hostnameaddress - the nameserver address (which may be unresolved).originalTtl - the TTL as returned by the DNS serverloop - the EventLoop used to register the TTL timeoutpublic void clear()
AuthoritativeDnsServerCachepublic boolean clear(java.lang.String hostname)
AuthoritativeDnsServerCacheclear 在接口中 AuthoritativeDnsServerCachetrue if and only if there was an entry for the specified host name in the cache and
it has been removed by this methodpublic java.lang.String toString()
toString 在类中 java.lang.Object