inet.ipaddr

Class IPAddressNetwork.HostNameCache

java.lang.Object

inet.ipaddr.IPAddressNetwork.HostNameCache

Enclosing class:

IPAddressNetwork

public static class IPAddressNetwork.HostNameCache
extends java.lang.Object

Choose a map of your choice to implement a cache of host names and resolved addresses. The map will map string representations of the host to HostName objects. Those HostName objects in turn cache any resulting IPAddressString objects if the string represents an address, or any IPAddress objects obtained from resolving the HostName. Those objects are all themselves thread-safe, but the cache will only be thread-safe if you choose a thread-safe map such as ConcurrentHashMap.

Constructor Summary

Constructors

Constructor and Description
HostNameCache(java.util.Map<java.lang.String,HostName> backingMap)
HostNameCache(java.util.Map<java.lang.String,HostName> backingMap, HostNameParameters options)

Method Summary

Modifier and Type	Method and Description
boolean	contains(T value) Returns whether the given instance is in the cache.
HostName	get(byte[] bytes)
HostName	get(byte[] bytes, byte[] bytes2, java.lang.Integer prefixLength)
HostName	get(byte[] bytes, byte[] bytes2, java.lang.Integer prefixLength, java.lang.String zone)
HostName	get(java.lang.String key) Gets the object for the given key.

Methods inherited from class java.lang.Object

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

Constructor Detail

HostNameCache

public HostNameCache(java.util.Map<java.lang.String,HostName> backingMap,
                     HostNameParameters options)

HostNameCache

public HostNameCache(java.util.Map<java.lang.String,HostName> backingMap)

Method Detail

get

public HostName get(java.lang.String key)

Gets the object for the given key. If the object does not exist yet then it is created and added to the cache.

Returns:

the object for the given key

get

public HostName get(byte[] bytes)

get

public HostName get(byte[] bytes,
                    byte[] bytes2,
                    java.lang.Integer prefixLength)

get

public HostName get(byte[] bytes,
                    byte[] bytes2,
                    java.lang.Integer prefixLength,
                    java.lang.String zone)

contains

public boolean contains(T value)

Returns whether the given instance is in the cache.

Parameters:

value -

Returns:

whether the given instance of T is in the cache