javax.jmdns.impl

类 DNSQuestion

java.lang.Object

javax.jmdns.impl.DNSEntry

javax.jmdns.impl.DNSQuestion

public class DNSQuestion
extends DNSEntry

A DNS question.

作者:

Arthur van Hoff, Pierre Frisch

方法概要

限定符和类型	方法和说明
void	addAnswers(JmDNSImpl jmDNSImpl, java.util.Set<DNSRecord> answers) Adds answers to the list for our question.
protected void	addAnswersForServiceInfo(JmDNSImpl jmDNSImpl, java.util.Set<DNSRecord> answers, ServiceInfoImpl info)
boolean	iAmTheOnlyOne(JmDNSImpl jmDNSImpl) Checks if we are the only to be able to answer that question.
boolean	isExpired(long now) Check if the record is expired.
boolean	isStale(long now) Check if the record is stale, i.e. it has outlived more than half of its TTL.
static DNSQuestion	newQuestion(java.lang.String name, DNSRecordType type, DNSRecordClass recordClass, boolean unique) Create a question.
void	toString(java.lang.StringBuilder sb)

从类继承的方法 javax.jmdns.impl.DNSEntry

compareTo, equals, getKey, getName, getQualifiedNameMap, getRecordClass, getRecordType, getSubtype, getType, hashCode, isDomainDiscoveryQuery, isReverseLookup, isSameEntry, isSameRecordClass, isSameType, isServicesDiscoveryMetaQuery, isUnique, isV4ReverseLookup, isV6ReverseLookup, matchRecordClass, matchRecordType, sameSubtype, toByteArray, toByteArray, toString

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

方法详细资料

newQuestion

public static DNSQuestion newQuestion(java.lang.String name,
                                      DNSRecordType type,
                                      DNSRecordClass recordClass,
                                      boolean unique)

Create a question.

参数:

name - DNS name to be resolved

type - Record type to resolve

recordClass - Record class to resolve

unique - Request unicast response (Currently not supported in this implementation)

返回:

new question

addAnswers

public void addAnswers(JmDNSImpl jmDNSImpl,
                       java.util.Set<DNSRecord> answers)

Adds answers to the list for our question.

参数:

jmDNSImpl - DNS holding the records

answers - List of previous answer to append.

addAnswersForServiceInfo

protected void addAnswersForServiceInfo(JmDNSImpl jmDNSImpl,
                                        java.util.Set<DNSRecord> answers,
                                        ServiceInfoImpl info)

isStale

public boolean isStale(long now)

从类复制的说明: DNSEntry

Check if the record is stale, i.e. it has outlived more than half of its TTL.

指定者:

isStale 在类中 DNSEntry

参数:

now - update date

返回:

true is the record is stale, false otherwise.

isExpired

public boolean isExpired(long now)

从类复制的说明: DNSEntry

Check if the record is expired.

指定者:

isExpired 在类中 DNSEntry

参数:

now - update date

返回:

true is the record is expired, false otherwise.

iAmTheOnlyOne

public boolean iAmTheOnlyOne(JmDNSImpl jmDNSImpl)

Checks if we are the only to be able to answer that question.

参数:

jmDNSImpl - DNS holding the records

返回:

true if we are the only one with the answer to the question, false otherwise.

toString

public void toString(java.lang.StringBuilder sb)

覆盖:

toString 在类中 DNSEntry