java.lang.Object
- io.netty5.resolver.dns.BiDnsQueryLifecycleObserver

All Implemented Interfaces:

DnsQueryLifecycleObserver
```
public final class BiDnsQueryLifecycleObserver
extends Object
implements DnsQueryLifecycleObserver
```
Combines two DnsQueryLifecycleObserver into a single DnsQueryLifecycleObserver.

Constructor Summary

Constructors
Constructor Description

BiDnsQueryLifecycleObserver(DnsQueryLifecycleObserver a, DnsQueryLifecycleObserver b)
Create a new instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`queryCancelled(int queriesRemaining)`	The query may have been written but it was cancelled at some point.
`DnsQueryLifecycleObserver`	`queryCNAMEd(DnsQuestion cnameQuestion)`	The query returned a CNAME which we may attempt to follow with a new query.
`void`	`queryFailed(Throwable cause)`	The following criteria are possible: IO Error Server responded with an invalid DNS response Server responded with a valid DNS response, but it didn't progress the resolution
`DnsQueryLifecycleObserver`	`queryNoAnswer(DnsResponseCode code)`	The response to the query didn't provide the expected response code, but it didn't return `DnsResponseCode.NXDOMAIN` so we may try to query again.
`DnsQueryLifecycleObserver`	`queryRedirected(List<InetSocketAddress> nameServers)`	The query has been redirected to another list of DNS servers.
`void`	`querySucceed()`	The query received the expected results.
`void`	`queryWritten(InetSocketAddress dnsServerAddress, Future<Void> future)`	The query has been written.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BiDnsQueryLifecycleObserver
```
public BiDnsQueryLifecycleObserver(DnsQueryLifecycleObserver a,
                                   DnsQueryLifecycleObserver b)
```
    Create a new instance.
    
    Parameters:
    
    a - The DnsQueryLifecycleObserver that will receive events first.
    
    b - The DnsQueryLifecycleObserver that will receive events second.
- Method Detail
  - queryWritten
```
public void queryWritten(InetSocketAddress dnsServerAddress,
                         Future<Void> future)
```
    Description copied from interface: DnsQueryLifecycleObserver
    
    The query has been written.
    
    Specified by:
    
    queryWritten in interface DnsQueryLifecycleObserver
    
    Parameters:
    
    dnsServerAddress - The DNS server address which the query was sent to.
    
    future - The future which represents the status of the write operation for the DNS query.
  - queryCancelled
```
public void queryCancelled(int queriesRemaining)
```
    Description copied from interface: DnsQueryLifecycleObserver
    
    The query may have been written but it was cancelled at some point.
    
    Specified by:
    
    queryCancelled in interface DnsQueryLifecycleObserver
    
    Parameters:
    
    queriesRemaining - The number of queries remaining.
  - queryRedirected
```
public DnsQueryLifecycleObserver queryRedirected(List<InetSocketAddress> nameServers)
```
    Description copied from interface: DnsQueryLifecycleObserver
    
    The query has been redirected to another list of DNS servers.
    
    Specified by:
    
    queryRedirected in interface DnsQueryLifecycleObserver
    
    Parameters:
    
    nameServers - The name servers the query has been redirected to.
    
    Returns:
    
    An observer for the new query which we may issue.
  - queryCNAMEd
```
public DnsQueryLifecycleObserver queryCNAMEd(DnsQuestion cnameQuestion)
```
    Description copied from interface: DnsQueryLifecycleObserver
    
    The query returned a CNAME which we may attempt to follow with a new query.
    Note that multiple queries may be encountering a CNAME. For example a if both DnsRecordType.AAAA and DnsRecordType.A are supported we may query for both.
    
    Specified by:
    
    queryCNAMEd in interface DnsQueryLifecycleObserver
    
    Parameters:
    
    cnameQuestion - the question we would use if we issue a new query.
    
    Returns:
    
    An observer for the new query which we may issue.
  - queryNoAnswer
```
public DnsQueryLifecycleObserver queryNoAnswer(DnsResponseCode code)
```
    Description copied from interface: DnsQueryLifecycleObserver
    
    The response to the query didn't provide the expected response code, but it didn't return DnsResponseCode.NXDOMAIN so we may try to query again.
    
    Specified by:
    
    queryNoAnswer in interface DnsQueryLifecycleObserver
    
    Parameters:
    
    code - the unexpected response code.
    
    Returns:
    
    An observer for the new query which we may issue.
  - queryFailed
```
public void queryFailed(Throwable cause)
```
    Description copied from interface: DnsQueryLifecycleObserver
    The following criteria are possible:
    
    IO Error
    
    Server responded with an invalid DNS response
    
    Server responded with a valid DNS response, but it didn't progress the resolution
    Specified by:
    
    queryFailed in interface DnsQueryLifecycleObserver
    
    Parameters:
    
    cause - The cause which for the failure.
  - querySucceed
```
public void querySucceed()
```
    Description copied from interface: DnsQueryLifecycleObserver
    
    The query received the expected results.
    
    Specified by:
    
    querySucceed in interface DnsQueryLifecycleObserver

Class BiDnsQueryLifecycleObserver

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

BiDnsQueryLifecycleObserver

Method Detail

queryWritten

queryCancelled

queryRedirected

queryCNAMEd

queryNoAnswer

queryFailed

querySucceed