| java.lang.Object
 org.xbill.DNS.ExtendedResolver
| ExtendedResolver | | public class ExtendedResolver implements Resolver(Code) | | An implementation of Resolver that can send queries to multiple servers,
sending the queries multiple times if necessary.
See Also: Resolver
author:
Brian Wellington |
| addResolver | | public void addResolver(Resolver r)(Code) | | Adds a new resolver to be used by this ExtendedResolver
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| deleteResolver | | public void deleteResolver(Resolver r)(Code) | | Deletes a resolver used by this ExtendedResolver
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| getResolver | | public Resolver getResolver(int n)(Code) | | Returns the nth resolver used by this ExtendedResolver
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| getResolvers | | public Resolver[] getResolvers()(Code) | | Returns all resolvers used by this ExtendedResolver
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| send | | public Message send(Message query) throws IOException(Code) | | Sends a message and waits for a response. Multiple servers are queried,
and queries are sent multiple times until either a successful response
is received, or it is clear that there is no successful response.
Parameters:
query - The query to send. The response.
throws:
IOException - An error occurred while sending or receiving. |
| sendAsync | | public Object sendAsync(Message query, ResolverListener listener)(Code) | | Asynchronously sends a message to multiple servers, potentially multiple
times, registering a listener to receive a callback on success or exception.
Multiple asynchronous lookups can be performed in parallel. Since the
callback may be invoked before the function returns, external
synchronization is necessary.
Parameters:
query - The query to send
Parameters:
listener - The object containing the callbacks. An identifier, which is also a parameter in the callback |
| setEDNS | | public void setEDNS(int level)(Code) | | |
| setEDNS | | public void setEDNS(int level, int payloadSize, int flags, List options)(Code) | | |
| setIgnoreTruncation | | public void setIgnoreTruncation(boolean flag)(Code) | | |
| setLoadBalance | | public void setLoadBalance(boolean flag)(Code) | | Sets whether the servers should be load balanced.
Parameters:
flag - If true, servers will be tried in round-robin order. If false,servers will always be queried in the same order. |
| setPort | | public void setPort(int port)(Code) | | |
| setRetries | | public void setRetries(int retries)(Code) | | Sets the number of retries sent to each server per query
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| setTCP | | public void setTCP(boolean flag)(Code) | | |
| setTimeout | | public void setTimeout(int secs, int msecs)(Code) | | |
| setTimeout | | public void setTimeout(int secs)(Code) | | |
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