Package javax.jmdns.impl
Class DNSQuestion
- java.lang.Object
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- javax.jmdns.impl.DNSEntry
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- javax.jmdns.impl.DNSQuestion
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public class DNSQuestion extends DNSEntry
A DNS question.- Author:
- Arthur van Hoff, Pierre Frisch
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description 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.static DNSQuestion
newQuestion(java.lang.String name, DNSRecordType type, DNSRecordClass recordClass, boolean unique)
Create a question.void
toString(java.lang.StringBuilder sb)
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Methods inherited from class 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
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Method Detail
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newQuestion
public static DNSQuestion newQuestion(java.lang.String name, DNSRecordType type, DNSRecordClass recordClass, boolean unique)
Create a question.- Parameters:
name
- DNS name to be resolvedtype
- Record type to resolverecordClass
- Record class to resolveunique
- Request unicast response (Currently not supported in this implementation)- Returns:
- new question
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addAnswers
public void addAnswers(JmDNSImpl jmDNSImpl, java.util.Set<DNSRecord> answers)
Adds answers to the list for our question.- Parameters:
jmDNSImpl
- DNS holding the recordsanswers
- List of previous answer to append.
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addAnswersForServiceInfo
protected void addAnswersForServiceInfo(JmDNSImpl jmDNSImpl, java.util.Set<DNSRecord> answers, ServiceInfoImpl info)
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isStale
public boolean isStale(long now)
Description copied from class:DNSEntry
Check if the record is stale, i.e. it has outlived more than half of its TTL.
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isExpired
public boolean isExpired(long now)
Description copied from class:DNSEntry
Check if the record is expired.
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iAmTheOnlyOne
public boolean iAmTheOnlyOne(JmDNSImpl jmDNSImpl)
Checks if we are the only to be able to answer that question.- Parameters:
jmDNSImpl
- DNS holding the records- Returns:
true
if we are the only one with the answer to the question,false
otherwise.
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