JmDNSImpl (jmdns2 1.0.7 API)

java.lang.Object
- javax.jmdns.JmDNS
- - javax.jmdns.impl.JmDNSImpl

所有已实现的接口:

java.io.Closeable, java.lang.AutoCloseable, DNSStatefulObject, DNSTaskStarter
```
public class JmDNSImpl
extends JmDNS
implements DNSStatefulObject, DNSTaskStarter
```
mDNS implementation in Java.

作者:

Arthur van Hoff, Rick Blair, Jeff Sonstein, Werner Randelshofer, Pierre Frisch, Scott Lewis, Kai Kreuzer, Victor Toni

嵌套类概要

嵌套类
限定符和类型	类和说明
`static class`	`JmDNSImpl.Operation`
`static class`	`JmDNSImpl.ServiceTypeEntry` This is used to store type entries.
`protected class`	`JmDNSImpl.Shutdown` Shutdown operations.

从类继承的嵌套类/接口 javax.jmdns.JmDNS
JmDNS.Delegate

从接口继承的嵌套类/接口 javax.jmdns.impl.DNSStatefulObject
DNSStatefulObject.DefaultImplementation, DNSStatefulObject.DNSStatefulObjectSemaphore

从接口继承的嵌套类/接口 javax.jmdns.impl.DNSTaskStarter
DNSTaskStarter.DNSTaskStarterImpl, DNSTaskStarter.Factory

字段概要

字段
限定符和类型字段和说明

protected java.lang.Thread _shutdown
This is the shutdown hook, we registered with the java runtime.

protected long _threadSleepDurationMs
- 从类继承的字段 javax.jmdns.JmDNS
  VERSION

字段
限定符和类型	字段和说明
`protected java.lang.Thread`	`_shutdown` This is the shutdown hook, we registered with the java runtime.
`protected long`	`_threadSleepDurationMs`

构造器概要

构造器
构造器和说明
`JmDNSImpl(java.net.InetAddress address, java.lang.String name)` Create an instance of JmDNS and bind it to a specific network interface given its IP-address.
`JmDNSImpl(java.net.InetAddress address, java.lang.String name, long threadSleepDurationMs)` Create an instance of JmDNS and bind it to a specific network interface given its IP-address.

方法概要

所有方法静态方法实例方法具体方法已过时的方法
限定符和类型	方法和说明
`DNSOutgoing`	`addAnswer(DNSIncoming in, java.net.InetAddress addr, int port, DNSOutgoing out, DNSRecord rec)` Add an answer to a question.
`void`	`addListener(javax.jmdns.impl.DNSListener listener, DNSQuestion question)` Add a listener for a question.
`void`	`addServiceListener(java.lang.String type, ServiceListener listener)` Listen for services of a given type.
`void`	`addServiceTypeListener(ServiceTypeListener listener)` Listen for service types.
`boolean`	`advanceState(DNSTask task)` Sets the state and notifies all objects that wait on the ServiceInfo.
`void`	`associateWithTask(DNSTask task, DNSState state)` Sets the task associated with this Object.
`boolean`	`cancelState()` Sets the state and notifies all objects that wait on the ServiceInfo.
`void`	`cancelStateTimer()` Cancel the state task timer
`void`	`cancelTimer()` Cancel the generals task timer
`void`	`cleanCache()` Checks the cache of expired records and removes them.
`void`	`close()`
`boolean`	`closeState()` Sets the state and notifies all objects that wait on the ServiceInfo.
`DNSCache`	`getCache()` Return the DNSCache associated with the cache variable
`JmDNS.Delegate`	`getDelegate()` Returns the instance delegate
`JmDNSImpl`	`getDns()` Returns the DNS associated with this object.
`java.net.InetAddress`	`getGroup()`
`java.lang.String`	`getHostName()` Return the HostName associated with this JmDNS instance.
`java.net.InetAddress`	`getInetAddress()` Return the address of the interface to which this instance of JmDNS is bound.
`java.net.InetAddress`	`getInterface()` 已过时。
`long`	`getLastThrottleIncrement()`
`HostInfo`	`getLocalHost()` Returns the local host info
`java.lang.String`	`getName()` Return the name of the JmDNS instance.
`DNSIncoming`	`getPlannedAnswer()`
`static java.util.Random`	`getRandom()`
`ServiceInfo`	`getServiceInfo(java.lang.String type, java.lang.String name)` Get service information.
`ServiceInfo`	`getServiceInfo(java.lang.String type, java.lang.String name, boolean persistent)` Get service information.
`ServiceInfo`	`getServiceInfo(java.lang.String type, java.lang.String name, boolean persistent, long timeout)` Get service information.
`ServiceInfo`	`getServiceInfo(java.lang.String type, java.lang.String name, long timeout)` Get service information.
`java.util.Map<java.lang.String,ServiceInfo>`	`getServices()`
`java.util.Map<java.lang.String,JmDNSImpl.ServiceTypeEntry>`	`getServiceTypes()`
`java.net.MulticastSocket`	`getSocket()`
`int`	`getThrottle()`
`void`	`ioLock()`
`void`	`ioUnlock()`
`boolean`	`isAnnounced()` Returns true, if this is an announced state.
`boolean`	`isAnnouncing()` Returns true, if this is an announcing state.
`boolean`	`isAssociatedWithTask(DNSTask task, DNSState state)` Checks if this object is associated with the task and in the same state.
`boolean`	`isCanceled()` Returns true, if this is a canceled state.
`boolean`	`isCanceling()` Returns true, if this is a canceling state.
`boolean`	`isClosed()` Returns true, if this is a closed state.
`boolean`	`isClosing()` Returns true, if this is a closing state.
`boolean`	`isProbing()` Returns true, if this is a probing state.
`ServiceInfo[]`	`list(java.lang.String type)` Returns a list of service infos of the specified type.
`ServiceInfo[]`	`list(java.lang.String type, long timeout)` Returns a list of service infos of the specified type.
`java.util.Map<java.lang.String,ServiceInfo[]>`	`listBySubtype(java.lang.String type)` Returns a list of service infos of the specified type sorted by subtype.
`java.util.Map<java.lang.String,ServiceInfo[]>`	`listBySubtype(java.lang.String type, long timeout)` Returns a list of service infos of the specified type sorted by subtype.
`static void`	`main(java.lang.String[] argv)` Main method to display API information if run from java -jar
`void`	`printServices()` 已过时。
`void`	`purgeStateTimer()` Purge the state task timer
`void`	`purgeTimer()` Purge the general task timer
`void`	`recover()` Recover jmDNS when there is an error.
`boolean`	`recoverState()` Sets the state and notifies all objects that wait on the ServiceInfo.
`void`	`registerService(ServiceInfo infoAbstract)` Register a service.
`boolean`	`registerServiceType(java.lang.String type)` Register a service type.
`void`	`removeAssociationWithTask(DNSTask task)` Remove the association of the task with this Object.
`void`	`removeListener(javax.jmdns.impl.DNSListener listener)` Remove a listener from all outstanding questions.
`void`	`removeServiceListener(java.lang.String type, ServiceListener listener)` Remove listener for services of a given type.
`void`	`removeServiceTypeListener(ServiceTypeListener listener)` Remove listener for service types.
`void`	`renewServiceCollector(java.lang.String type)` Renew a service when the record become stale.
`void`	`requestServiceInfo(java.lang.String type, java.lang.String name)` Request service information.
`void`	`requestServiceInfo(java.lang.String type, java.lang.String name, boolean persistent)` Request service information.
`void`	`requestServiceInfo(java.lang.String type, java.lang.String name, boolean persistent, long timeout)` Request service information.
`void`	`requestServiceInfo(java.lang.String type, java.lang.String name, long timeout)` Request service information.
`void`	`respondToQuery(DNSIncoming in)`
`boolean`	`revertState()` Sets the state and notifies all objects that wait on the ServiceInfo.
`void`	`send(DNSOutgoing out)` Send an outgoing multicast DNS message.
`JmDNS.Delegate`	`setDelegate(JmDNS.Delegate delegate)` Sets the instance delegate
`void`	`setLastThrottleIncrement(long lastThrottleIncrement)`
`void`	`setPlannedAnswer(DNSIncoming plannedAnswer)`
`void`	`setThrottle(int throttle)`
`void`	`startAnnouncer()` Start a new announcer task
`void`	`startCanceler()` Start a new canceler task
`void`	`startProber()` Start a new prober task
`void`	`startReaper()` Start a new reaper task.
`void`	`startRenewer()` Start a new renewer task
`void`	`startResponder(DNSIncoming in, java.net.InetAddress addr, int port)` Start a new responder task
`void`	`startServiceInfoResolver(ServiceInfoImpl info)` Start a new service info resolver task
`void`	`startServiceResolver(java.lang.String type)` Start a new service resolver task
`void`	`startTypeResolver()` Start a new service type resolver task
`java.lang.String`	`toString()`
`void`	`unregisterAllServices()` Unregister all services.
`void`	`unregisterService(ServiceInfo infoAbstract)` Unregister a service.
`void`	`updateRecord(long now, DNSRecord rec, JmDNSImpl.Operation operation)` Notify all listeners that a record was updated.
`boolean`	`waitForAnnounced(long timeout)` Waits for the object to be announced.
`boolean`	`waitForCanceled(long timeout)` Waits for the object to be canceled.

从类继承的方法 javax.jmdns.JmDNS
create, create, create, create, create

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - _threadSleepDurationMs
```
protected final long _threadSleepDurationMs
```
  - _shutdown
```
protected java.lang.Thread _shutdown
```
    This is the shutdown hook, we registered with the java runtime.
- 构造器详细资料
  - JmDNSImpl
```
public JmDNSImpl(java.net.InetAddress address,
                 java.lang.String name)
          throws java.io.IOException
```
    Create an instance of JmDNS and bind it to a specific network interface given its IP-address.
    
    参数:
    
    address - IP address to bind to.
    
    name - name of the newly created JmDNS
    
    抛出:
    
    java.io.IOException
  - JmDNSImpl
```
public JmDNSImpl(java.net.InetAddress address,
                 java.lang.String name,
                 long threadSleepDurationMs)
          throws java.io.IOException
```
    Create an instance of JmDNS and bind it to a specific network interface given its IP-address.
    
    参数:
    
    address - IP address to bind to.
    
    name - name of the newly created JmDNS
    
    threadSleepDurationMs - time in milliseconds that the JmDNS listener thread should sleep between multicast receives
    
    抛出:
    
    java.io.IOException
- 方法详细资料
  - main
```
public static void main(java.lang.String[] argv)
```
    Main method to display API information if run from java -jar
    
    参数:
    
    argv - the command line arguments
  - advanceState
```
public boolean advanceState(DNSTask task)
```
    Sets the state and notifies all objects that wait on the ServiceInfo.
    
    指定者:
    
    advanceState 在接口中 DNSStatefulObject
    
    参数:
    
    task - associated task
    
    返回:
    
    true if the state was changed by this thread, false otherwise.
    
    另请参阅:
    
    DNSState.advance()
  - revertState
```
public boolean revertState()
```
    Sets the state and notifies all objects that wait on the ServiceInfo.
    
    指定者:
    
    revertState 在接口中 DNSStatefulObject
    
    返回:
    
    true if the state was changed by this thread, false otherwise.
    
    另请参阅:
    
    DNSState.revert()
  - cancelState
```
public boolean cancelState()
```
    Sets the state and notifies all objects that wait on the ServiceInfo.
    
    指定者:
    
    cancelState 在接口中 DNSStatefulObject
    
    返回:
    
    true if the state was changed by this thread, false otherwise.
  - closeState
```
public boolean closeState()
```
    Sets the state and notifies all objects that wait on the ServiceInfo.
    
    指定者:
    
    closeState 在接口中 DNSStatefulObject
    
    返回:
    
    true if the state was changed by this thread, false otherwise.
  - recoverState
```
public boolean recoverState()
```
    Sets the state and notifies all objects that wait on the ServiceInfo.
    
    指定者:
    
    recoverState 在接口中 DNSStatefulObject
    
    返回:
    
    true if the state was changed by this thread, false otherwise.
  - getDns
```
public JmDNSImpl getDns()
```
    Returns the DNS associated with this object.
    
    指定者:
    
    getDns 在接口中 DNSStatefulObject
    
    返回:
    
    DNS resolver
  - associateWithTask
```
public void associateWithTask(DNSTask task,
                              DNSState state)
```
    Sets the task associated with this Object.
    
    指定者:
    
    associateWithTask 在接口中 DNSStatefulObject
    
    参数:
    
    task - associated task
    
    state - state of the task
  - removeAssociationWithTask
```
public void removeAssociationWithTask(DNSTask task)
```
    Remove the association of the task with this Object.
    
    指定者:
    
    removeAssociationWithTask 在接口中 DNSStatefulObject
    
    参数:
    
    task - associated task
  - isAssociatedWithTask
```
public boolean isAssociatedWithTask(DNSTask task,
                                    DNSState state)
```
    Checks if this object is associated with the task and in the same state.
    
    指定者:
    
    isAssociatedWithTask 在接口中 DNSStatefulObject
    
    参数:
    
    task - associated task
    
    state - state of the task
    
    返回:
    
    true is the task is associated with this object, false otherwise.
  - isProbing
```
public boolean isProbing()
```
    Returns true, if this is a probing state.
    
    指定者:
    
    isProbing 在接口中 DNSStatefulObject
    
    返回:
    
    true if probing state, false otherwise
  - isAnnouncing
```
public boolean isAnnouncing()
```
    Returns true, if this is an announcing state.
    
    指定者:
    
    isAnnouncing 在接口中 DNSStatefulObject
    
    返回:
    
    true if announcing state, false otherwise
  - isAnnounced
```
public boolean isAnnounced()
```
    Returns true, if this is an announced state.
    
    指定者:
    
    isAnnounced 在接口中 DNSStatefulObject
    
    返回:
    
    true if announced state, false otherwise
  - isCanceling
```
public boolean isCanceling()
```
    Returns true, if this is a canceling state.
    
    指定者:
    
    isCanceling 在接口中 DNSStatefulObject
    
    返回:
    
    true if canceling state, false otherwise
  - isCanceled
```
public boolean isCanceled()
```
    Returns true, if this is a canceled state.
    
    指定者:
    
    isCanceled 在接口中 DNSStatefulObject
    
    返回:
    
    true if canceled state, false otherwise
  - isClosing
```
public boolean isClosing()
```
    Returns true, if this is a closing state.
    
    指定者:
    
    isClosing 在接口中 DNSStatefulObject
    
    返回:
    
    true if closing state, false otherwise
  - isClosed
```
public boolean isClosed()
```
    Returns true, if this is a closed state.
    
    指定者:
    
    isClosed 在接口中 DNSStatefulObject
    
    返回:
    
    true if closed state, false otherwise
  - waitForAnnounced
```
public boolean waitForAnnounced(long timeout)
```
    Waits for the object to be announced.
    
    指定者:
    
    waitForAnnounced 在接口中 DNSStatefulObject
    
    参数:
    
    timeout - the maximum time to wait in milliseconds.
    
    返回:
    
    true if the object is announced, false otherwise
  - waitForCanceled
```
public boolean waitForCanceled(long timeout)
```
    Waits for the object to be canceled.
    
    指定者:
    
    waitForCanceled 在接口中 DNSStatefulObject
    
    参数:
    
    timeout - the maximum time to wait in milliseconds.
    
    返回:
    
    true if the object is canceled, false otherwise
  - getCache
```
public DNSCache getCache()
```
    Return the DNSCache associated with the cache variable
    
    返回:
    
    DNS cache
  - getName
```
public java.lang.String getName()
```
    Return the name of the JmDNS instance. This is an arbitrary string that is useful for distinguishing instances.
    
    指定者:
    
    getName 在类中 JmDNS
    
    返回:
    
    name of the JmDNS
  - getHostName
```
public java.lang.String getHostName()
```
    Return the HostName associated with this JmDNS instance. Note: May not be the same as what started. The host name is subject to negotiation.
    
    指定者:
    
    getHostName 在类中 JmDNS
    
    返回:
    
    Host name
  - getLocalHost
```
public HostInfo getLocalHost()
```
    Returns the local host info
    
    返回:
    
    local host info
  - getInetAddress
```
public java.net.InetAddress getInetAddress()
                                    throws java.io.IOException
```
    Return the address of the interface to which this instance of JmDNS is bound.
    
    指定者:
    
    getInetAddress 在类中 JmDNS
    
    返回:
    
    Internet Address
    
    抛出:
    
    java.io.IOException - if there is an error in the underlying protocol, such as a TCP error.
  - getInterface
```
@Deprecated
public java.net.InetAddress getInterface()
                                               throws java.io.IOException
```
    已过时。
    
    Return the address of the interface to which this instance of JmDNS is bound.
    
    指定者:
    
    getInterface 在类中 JmDNS
    
    返回:
    
    Internet Address
    
    抛出:
    
    java.io.IOException - if there is an error in the underlying protocol, such as a TCP error.
  - getServiceInfo
```
public ServiceInfo getServiceInfo(java.lang.String type,
                                  java.lang.String name)
```
    Get service information. If the information is not cached, the method will block until updated information is received.
    Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.
    
    指定者:
    
    getServiceInfo 在类中 JmDNS
    
    参数:
    
    type - fully qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
    
    返回:
    
    null if the service information cannot be obtained
  - getServiceInfo
```
public ServiceInfo getServiceInfo(java.lang.String type,
                                  java.lang.String name,
                                  long timeout)
```
    Get service information. If the information is not cached, the method will block for the given timeout until updated information is received.
    Usage note: If you call this method from the AWT event dispatcher thread, use a small timeout, or you will make the user interface unresponsive.
    
    指定者:
    
    getServiceInfo 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
    
    timeout - timeout in milliseconds. Typical timeout should be 5s.
    
    返回:
    
    null if the service information cannot be obtained
  - getServiceInfo
```
public ServiceInfo getServiceInfo(java.lang.String type,
                                  java.lang.String name,
                                  boolean persistent)
```
    Get service information. If the information is not cached, the method will block until updated information is received.
    Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.
    
    指定者:
    
    getServiceInfo 在类中 JmDNS
    
    参数:
    
    type - fully qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
    
    persistent - if true ServiceListener.resolveService will be called whenever new new information is received.
    
    返回:
    
    null if the service information cannot be obtained
  - getServiceInfo
```
public ServiceInfo getServiceInfo(java.lang.String type,
                                  java.lang.String name,
                                  boolean persistent,
                                  long timeout)
```
    Get service information. If the information is not cached, the method will block for the given timeout until updated information is received.
    Usage note: If you call this method from the AWT event dispatcher thread, use a small timeout, or you will make the user interface unresponsive.
    
    指定者:
    
    getServiceInfo 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
    
    persistent - if true ServiceListener.resolveService will be called whenever new new information is received.
    
    timeout - timeout in milliseconds. Typical timeout should be 5s.
    
    返回:
    
    null if the service information cannot be obtained
  - requestServiceInfo
```
public void requestServiceInfo(java.lang.String type,
                               java.lang.String name)
```
    Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.
    Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.
    
    指定者:
    
    requestServiceInfo 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
  - requestServiceInfo
```
public void requestServiceInfo(java.lang.String type,
                               java.lang.String name,
                               boolean persistent)
```
    Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.
    Usage note: Do not call this method from the AWT event dispatcher thread. You will make the user interface unresponsive.
    
    指定者:
    
    requestServiceInfo 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
    
    persistent - if true ServiceListener.resolveService will be called whenever new new information is received.
  - requestServiceInfo
```
public void requestServiceInfo(java.lang.String type,
                               java.lang.String name,
                               long timeout)
```
    Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.
    
    指定者:
    
    requestServiceInfo 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
    
    timeout - timeout in milliseconds
  - requestServiceInfo
```
public void requestServiceInfo(java.lang.String type,
                               java.lang.String name,
                               boolean persistent,
                               long timeout)
```
    Request service information. The information about the service is requested and the ServiceListener.resolveService method is called as soon as it is available.
    
    指定者:
    
    requestServiceInfo 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local. .
    
    name - unqualified service name, such as foobar .
    
    persistent - if true ServiceListener.resolveService will be called whenever new new information is received.
    
    timeout - timeout in milliseconds
  - addServiceTypeListener
```
public void addServiceTypeListener(ServiceTypeListener listener)
                            throws java.io.IOException
```
    Listen for service types.
    
    指定者:
    
    addServiceTypeListener 在类中 JmDNS
    
    参数:
    
    listener - listener for service types
    
    抛出:
    
    java.io.IOException - if there is an error in the underlying protocol, such as a TCP error.
  - removeServiceTypeListener
```
public void removeServiceTypeListener(ServiceTypeListener listener)
```
    Remove listener for service types.
    
    指定者:
    
    removeServiceTypeListener 在类中 JmDNS
    
    参数:
    
    listener - listener for service types
  - addServiceListener
```
public void addServiceListener(java.lang.String type,
                               ServiceListener listener)
```
    Listen for services of a given type. The type has to be a fully qualified type name such as _http._tcp.local..
    
    指定者:
    
    addServiceListener 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local..
    
    listener - listener for service updates
  - removeServiceListener
```
public void removeServiceListener(java.lang.String type,
                                  ServiceListener listener)
```
    Remove listener for services of a given type.
    
    指定者:
    
    removeServiceListener 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local..
    
    listener - listener for service updates
  - registerService
```
public void registerService(ServiceInfo infoAbstract)
                     throws java.io.IOException
```
    Register a service. The service is registered for access by other jmdns clients. The name of the service may be changed to make it unique.
    Note that the given ServiceInfo is bound to this JmDNS instance, and should not be reused for any other JmDNS.registerService(ServiceInfo).
    
    指定者:
    
    registerService 在类中 JmDNS
    
    参数:
    
    infoAbstract - service info to register
    
    抛出:
    
    java.io.IOException - if there is an error in the underlying protocol, such as a TCP error.
  - unregisterService
```
public void unregisterService(ServiceInfo infoAbstract)
```
    Unregister a service. The service should have been registered.
    Note: Unregistered services will not disappear form the list of services immediately. According to the specification, when unregistering services we send goodbye packets and then wait 1s before purging the cache.
    This is support for shared records that can be rescued by some other cooperation DNS.
```
 Clients receiving a Multicast DNS Response with a TTL of zero SHOULD NOT immediately delete the record from the cache, but instead record a TTL of 1 and then delete the record one second later.
 
```
    指定者:
    
    unregisterService 在类中 JmDNS
    
    参数:
    
    infoAbstract - service info to remove
  - unregisterAllServices
```
public void unregisterAllServices()
```
    Unregister all services.
    
    指定者:
    
    unregisterAllServices 在类中 JmDNS
  - registerServiceType
```
public boolean registerServiceType(java.lang.String type)
```
    Register a service type. If this service type was not already known, all service listeners will be notified of the new service type.
    Service types are automatically registered as they are discovered.
    
    指定者:
    
    registerServiceType 在类中 JmDNS
    
    参数:
    
    type - full qualified service type, such as _http._tcp.local..
    
    返回:
    
    true if the type or subtype was added, false if the type was already registered.
  - addListener
```
public void addListener(javax.jmdns.impl.DNSListener listener,
                        DNSQuestion question)
```
    Add a listener for a question. The listener will receive updates of answers to the question as they arrive, or from the cache if they are already available.
    
    参数:
    
    listener - DSN listener
    
    question - DNS query
  - removeListener
```
public void removeListener(javax.jmdns.impl.DNSListener listener)
```
    Remove a listener from all outstanding questions. The listener will no longer receive any updates.
    
    参数:
    
    listener - DSN listener
  - renewServiceCollector
```
public void renewServiceCollector(java.lang.String type)
```
    Renew a service when the record become stale. If there is no service collector for the type this method does nothing.
    
    参数:
    
    type - Service Type
  - updateRecord
```
public void updateRecord(long now,
                         DNSRecord rec,
                         JmDNSImpl.Operation operation)
```
    Notify all listeners that a record was updated.
    
    参数:
    
    now - update date
    
    rec - DNS record
    
    operation - DNS cache operation
  - respondToQuery
```
public void respondToQuery(DNSIncoming in)
```
  - addAnswer
```
public DNSOutgoing addAnswer(DNSIncoming in,
                             java.net.InetAddress addr,
                             int port,
                             DNSOutgoing out,
                             DNSRecord rec)
                      throws java.io.IOException
```
    Add an answer to a question. Deal with the case when the outgoing packet overflows
    
    参数:
    
    in -
    
    addr -
    
    port -
    
    out -
    
    rec -
    
    返回:
    
    outgoing answer
    
    抛出:
    
    java.io.IOException
  - send
```
public void send(DNSOutgoing out)
          throws java.io.IOException
```
    Send an outgoing multicast DNS message.
    
    参数:
    
    out -
    
    抛出:
    
    java.io.IOException
  - purgeTimer
```
public void purgeTimer()
```
    从接口复制的说明: DNSTaskStarter
    
    Purge the general task timer
    
    指定者:
    
    purgeTimer 在接口中 DNSTaskStarter
  - purgeStateTimer
```
public void purgeStateTimer()
```
    从接口复制的说明: DNSTaskStarter
    
    Purge the state task timer
    
    指定者:
    
    purgeStateTimer 在接口中 DNSTaskStarter
  - cancelTimer
```
public void cancelTimer()
```
    从接口复制的说明: DNSTaskStarter
    
    Cancel the generals task timer
    
    指定者:
    
    cancelTimer 在接口中 DNSTaskStarter
  - cancelStateTimer
```
public void cancelStateTimer()
```
    从接口复制的说明: DNSTaskStarter
    
    Cancel the state task timer
    
    指定者:
    
    cancelStateTimer 在接口中 DNSTaskStarter
  - startProber
```
public void startProber()
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new prober task
    
    指定者:
    
    startProber 在接口中 DNSTaskStarter
  - startAnnouncer
```
public void startAnnouncer()
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new announcer task
    
    指定者:
    
    startAnnouncer 在接口中 DNSTaskStarter
  - startRenewer
```
public void startRenewer()
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new renewer task
    
    指定者:
    
    startRenewer 在接口中 DNSTaskStarter
  - startCanceler
```
public void startCanceler()
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new canceler task
    
    指定者:
    
    startCanceler 在接口中 DNSTaskStarter
  - startReaper
```
public void startReaper()
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new reaper task. There is only supposed to be one reaper running at a time.
    
    指定者:
    
    startReaper 在接口中 DNSTaskStarter
  - startServiceInfoResolver
```
public void startServiceInfoResolver(ServiceInfoImpl info)
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new service info resolver task
    
    指定者:
    
    startServiceInfoResolver 在接口中 DNSTaskStarter
    
    参数:
    
    info - service info to resolve
  - startTypeResolver
```
public void startTypeResolver()
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new service type resolver task
    
    指定者:
    
    startTypeResolver 在接口中 DNSTaskStarter
  - startServiceResolver
```
public void startServiceResolver(java.lang.String type)
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new service resolver task
    
    指定者:
    
    startServiceResolver 在接口中 DNSTaskStarter
    
    参数:
    
    type - service type to resolve
  - startResponder
```
public void startResponder(DNSIncoming in,
                           java.net.InetAddress addr,
                           int port)
```
    从接口复制的说明: DNSTaskStarter
    
    Start a new responder task
    
    指定者:
    
    startResponder 在接口中 DNSTaskStarter
    
    参数:
    
    in - incoming message
    
    addr - incoming address
    
    port - incoming port
  - recover
```
public void recover()
```
    Recover jmDNS when there is an error.
  - cleanCache
```
public void cleanCache()
```
    Checks the cache of expired records and removes them. If any records are about to expire it tries to get them refreshed.
    Implementation note:
    This method is called by the RecordReaper every DNSConstants.RECORD_REAPER_INTERVAL milliseconds.
    
    另请参阅:
    
    DNSRecord, RecordReaper
  - close
```
public void close()
```
    指定者:
    
    close 在接口中 java.io.Closeable
    
    指定者:
    
    close 在接口中 java.lang.AutoCloseable
  - printServices
```
@Deprecated
public void printServices()
```
    已过时。
    
    List Services and serviceTypes. Debugging Only
    
    指定者:
    
    printServices 在类中 JmDNS
  - toString
```
public java.lang.String toString()
```
    覆盖:
    
    toString 在类中 java.lang.Object
  - list
```
public ServiceInfo[] list(java.lang.String type)
```
    Returns a list of service infos of the specified type.
    
    指定者:
    
    list 在类中 JmDNS
    
    参数:
    
    type - Service type name, such as _http._tcp.local..
    
    返回:
    
    An array of service instance.
  - list
```
public ServiceInfo[] list(java.lang.String type,
                          long timeout)
```
    Returns a list of service infos of the specified type.
    
    指定者:
    
    list 在类中 JmDNS
    
    参数:
    
    type - Service type name, such as _http._tcp.local..
    
    timeout - timeout in milliseconds. Typical timeout should be 6s.
    
    返回:
    
    An array of service instance.
  - listBySubtype
```
public java.util.Map<java.lang.String,ServiceInfo[]> listBySubtype(java.lang.String type)
```
    Returns a list of service infos of the specified type sorted by subtype. Any service that do not register a subtype is listed in the empty subtype section.
    
    指定者:
    
    listBySubtype 在类中 JmDNS
    
    参数:
    
    type - Service type name, such as _http._tcp.local..
    
    返回:
    
    A dictionary of service info by subtypes.
  - listBySubtype
```
public java.util.Map<java.lang.String,ServiceInfo[]> listBySubtype(java.lang.String type,
                                                                   long timeout)
```
    Returns a list of service infos of the specified type sorted by subtype. Any service that do not register a subtype is listed in the empty subtype section.
    
    指定者:
    
    listBySubtype 在类中 JmDNS
    
    参数:
    
    type - Service type name, such as _http._tcp.local..
    
    timeout - timeout in milliseconds. Typical timeout should be 6s.
    
    返回:
    
    A dictionary of service info by subtypes.
  - getServices
```
public java.util.Map<java.lang.String,ServiceInfo> getServices()
```
  - setLastThrottleIncrement
```
public void setLastThrottleIncrement(long lastThrottleIncrement)
```
  - getLastThrottleIncrement
```
public long getLastThrottleIncrement()
```
  - setThrottle
```
public void setThrottle(int throttle)
```
  - getThrottle
```
public int getThrottle()
```
  - getRandom
```
public static java.util.Random getRandom()
```
  - ioLock
```
public void ioLock()
```
  - ioUnlock
```
public void ioUnlock()
```
  - setPlannedAnswer
```
public void setPlannedAnswer(DNSIncoming plannedAnswer)
```
  - getPlannedAnswer
```
public DNSIncoming getPlannedAnswer()
```
  - getServiceTypes
```
public java.util.Map<java.lang.String,JmDNSImpl.ServiceTypeEntry> getServiceTypes()
```
  - getSocket
```
public java.net.MulticastSocket getSocket()
```
  - getGroup
```
public java.net.InetAddress getGroup()
```
  - getDelegate
```
public JmDNS.Delegate getDelegate()
```
    从类复制的说明: JmDNS
    
    Returns the instance delegate
    
    指定者:
    
    getDelegate 在类中 JmDNS
    
    返回:
    
    instance delegate
  - setDelegate
```
public JmDNS.Delegate setDelegate(JmDNS.Delegate delegate)
```
    从类复制的说明: JmDNS
    
    Sets the instance delegate
    
    指定者:
    
    setDelegate 在类中 JmDNS
    
    参数:
    
    delegate - new instance delegate
    
    返回:
    
    previous instance delegate

类 JmDNSImpl

嵌套类概要

从类继承的嵌套类/接口 javax.jmdns.JmDNS

从接口继承的嵌套类/接口 javax.jmdns.impl.DNSStatefulObject

从接口继承的嵌套类/接口 javax.jmdns.impl.DNSTaskStarter

字段概要

从类继承的字段 javax.jmdns.JmDNS

构造器概要

方法概要

从类继承的方法 javax.jmdns.JmDNS

从类继承的方法 java.lang.Object

字段详细资料

_threadSleepDurationMs

_shutdown

构造器详细资料

JmDNSImpl

JmDNSImpl

方法详细资料

main

advanceState

revertState

cancelState

closeState

recoverState

getDns

associateWithTask

removeAssociationWithTask

isAssociatedWithTask

isProbing

isAnnouncing

isAnnounced

isCanceling

isCanceled

isClosing

isClosed

waitForAnnounced

waitForCanceled

getCache

getName

getHostName

getLocalHost

getInetAddress

getInterface

getServiceInfo

getServiceInfo

getServiceInfo

getServiceInfo

requestServiceInfo

requestServiceInfo

requestServiceInfo

requestServiceInfo

addServiceTypeListener

removeServiceTypeListener

addServiceListener

removeServiceListener

registerService

unregisterService

unregisterAllServices

registerServiceType

addListener

removeListener

renewServiceCollector

updateRecord

respondToQuery

addAnswer

send

purgeTimer

purgeStateTimer

cancelTimer

cancelStateTimer

startProber

startAnnouncer

startRenewer

startCanceler

startReaper

startServiceInfoResolver

startTypeResolver

startServiceResolver

startResponder

recover