DnsResolver (Lettuce 6.3.3.BUILD-SNAPSHOT API)

All Known Implementing Classes:

DirContextDnsResolver, DnsResolvers
```
public interface DnsResolver
```
Users may implement this interface to override the normal DNS lookup offered by the OS.

Since:

4.2

Author:

Mark Paluch

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static DnsResolver`	`jvmDefault()`	Java VM default resolver.
`InetAddress[]`	`resolve(String host)`	Returns the IP address for the specified host name.
`static DnsResolver`	`unresolved()`	Non-resolving `DnsResolver`.

- Method Detail
  - jvmDefault
```
static DnsResolver jvmDefault()
```
    Java VM default resolver.
    
    Since:
    
    5.1
  - unresolved
```
static DnsResolver unresolved()
```
    Non-resolving DnsResolver. Returns an empty InetAddress to indicate an unresolved address.
    
    Since:
    
    5.1
    
    See Also:
    
    InetSocketAddress.createUnresolved(String, int)
  - resolve
```
InetAddress[] resolve(String host)
               throws UnknownHostException
```
    Returns the IP address for the specified host name.
    
    Parameters:
    
    host - the hostname, must not be empty or null.
    
    Returns:
    
    array of one or more adresses. An empty array indicates that DNS resolution is not supported by this DnsResolver and should happen by netty, see InetSocketAddress.createUnresolved(String, int).
    
    Throws:
    
    UnknownHostException - if the given host is not recognized or the associated IP address cannot be used to build an InetAddress instance