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Interface describing a resolver.
Method Summary | |
Message |
send(Message query)
Sends a message and waits for a response. |
Object |
sendAsync(Message query,
ResolverListener listener)
Asynchronously sends a message registering a listener to receive a callback on success or exception. |
void |
setEDNS(int level)
Sets the EDNS version used on outgoing messages. |
void |
setEDNS(int level,
int payloadSize,
int flags,
List options)
Sets the EDNS information on outgoing messages. |
void |
setIgnoreTruncation(boolean flag)
Sets whether truncated responses will be ignored. |
void |
setPort(int port)
Sets the port to communicate with on the server |
void |
setTCP(boolean flag)
Sets whether TCP connections will be sent by default |
void |
setTimeout(int secs)
Sets the amount of time to wait for a response before giving up. |
void |
setTimeout(int secs,
int msecs)
Sets the amount of time to wait for a response before giving up. |
void |
setTSIGKey(TSIG key)
Specifies the TSIG key that messages will be signed with |
Method Detail |
public void setPort(int port)
port
- The port to send messages topublic void setTCP(boolean flag)
flag
- Indicates whether TCP connections are madepublic void setIgnoreTruncation(boolean flag)
flag
- Indicates whether truncated responses should be ignored.public void setEDNS(int level)
level
- The EDNS level to use. 0 indicates EDNS0 and -1 indicates no
EDNS.
IllegalArgumentException
- An invalid level was indicated.public void setEDNS(int level, int payloadSize, int flags, List options)
level
- The EDNS level to use. 0 indicates EDNS0 and -1 indicates no
EDNS.payloadSize
- The maximum DNS packet size that this host is capable
of receiving over UDP. If 0 is specified, the default (1280) is used.flags
- EDNS extended flags to be set in the OPT record.options
- EDNS options to be set in the OPT record, specified as a
List of OPTRecord.Option elements.
IllegalArgumentException
- An invalid field was specified.OPTRecord
public void setTSIGKey(TSIG key)
key
- The keypublic void setTimeout(int secs, int msecs)
secs
- The number of seconds to wait.msecs
- The number of milliseconds to wait.public void setTimeout(int secs)
secs
- The number of seconds to wait.public Message send(Message query) throws IOException
query
- The query to send.
IOException
- An error occurred while sending or receiving.public Object sendAsync(Message query, ResolverListener listener)
query
- The query to sendlistener
- The object containing the callbacks.
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