io.netty.handler.codec.dns

Class DnsMessage

java.lang.Object

io.netty.util.AbstractReferenceCounted

io.netty.handler.codec.dns.DnsMessage

All Implemented Interfaces:

ReferenceCounted

Direct Known Subclasses:

DnsQuery, DnsResponse

public abstract class DnsMessage
extends AbstractReferenceCounted

The message super-class which contains core information concerning DNS packets, both outgoing and incoming.

Method Summary

Methods

Modifier and Type	Method and Description
DnsMessage	addAdditionalResource(DnsResource resource) Adds an additional resource record to this message.
DnsMessage	addAnswer(DnsResource answer) Adds an answer resource record to this message.
DnsMessage	addAuthorityResource(DnsResource resource) Adds an authority resource record to this message.
List<DnsResource>	additionalResources() Returns a list of all the additional resource records in this message.
DnsMessage	addQuestion(DnsQuestion question) Adds a question to this message.
List<DnsResource>	answers() Returns a list of all the answer resource records in this message.
List<DnsResource>	authorityResources() Returns a list of all the authority resource records in this message.
protected void	deallocate() Called once AbstractReferenceCounted.refCnt() is equals 0.
DnsHeader	header() Returns the header belonging to this message.
protected abstract DnsHeader	newHeader(int id)
List<DnsQuestion>	questions() Returns a list of all the questions in this message.
boolean	release() Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0.
boolean	release(int decrement) Decreases the reference count by the specified decrement and deallocates this object if the reference count reaches at 0.
DnsMessage	retain() Increases the reference count by 1.
DnsMessage	retain(int increment) Increases the reference count by the specified increment.
DnsMessage	touch() Records the current access location of this object for debugging purposes.
DnsMessage	touch(Object hint) Records the current access location of this object with an additonal arbitrary information for debugging purposes.

Methods inherited from class io.netty.util.AbstractReferenceCounted

refCnt, setRefCnt

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

header

public DnsHeader header()

Returns the header belonging to this message.

questions

public List<DnsQuestion> questions()

Returns a list of all the questions in this message.

answers

public List<DnsResource> answers()

Returns a list of all the answer resource records in this message.

authorityResources

public List<DnsResource> authorityResources()

Returns a list of all the authority resource records in this message.

additionalResources

public List<DnsResource> additionalResources()

Returns a list of all the additional resource records in this message.

addAnswer

public DnsMessage addAnswer(DnsResource answer)

Adds an answer resource record to this message.

Parameters:

answer - the answer resource record to be added

Returns:

the message to allow method chaining

addQuestion

public DnsMessage addQuestion(DnsQuestion question)

Adds a question to this message.

Parameters:

question - the question to be added

Returns:

the message to allow method chaining

addAuthorityResource

public DnsMessage addAuthorityResource(DnsResource resource)

Adds an authority resource record to this message.

Parameters:

resource - the authority resource record to be added

Returns:

the message to allow method chaining

addAdditionalResource

public DnsMessage addAdditionalResource(DnsResource resource)

Adds an additional resource record to this message.

Parameters:

resource - the additional resource record to be added

Returns:

the message to allow method chaining

deallocate

protected void deallocate()

Description copied from class: AbstractReferenceCounted

Called once AbstractReferenceCounted.refCnt() is equals 0.

Specified by:

deallocate in class AbstractReferenceCounted

release

public boolean release()

Description copied from interface: ReferenceCounted

Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0.

Specified by:

release in interface ReferenceCounted

Overrides:

release in class AbstractReferenceCounted

Returns:

true if and only if the reference count became 0 and this object has been deallocated

release

public boolean release(int decrement)

Description copied from interface: ReferenceCounted

Decreases the reference count by the specified decrement and deallocates this object if the reference count reaches at 0.

Specified by:

release in interface ReferenceCounted

Overrides:

release in class AbstractReferenceCounted

Returns:

true if and only if the reference count became 0 and this object has been deallocated

touch

public DnsMessage touch(Object hint)

Description copied from interface: ReferenceCounted

Records the current access location of this object with an additonal arbitrary information for debugging purposes. If this object is determined to be leaked, the information recorded by this operation will be provided to you via ResourceLeakDetector.

retain

public DnsMessage retain()

Description copied from interface: ReferenceCounted

Increases the reference count by 1.

Specified by:

retain in interface ReferenceCounted

Overrides:

retain in class AbstractReferenceCounted

retain

public DnsMessage retain(int increment)

Description copied from interface: ReferenceCounted

Increases the reference count by the specified increment.

Specified by:

retain in interface ReferenceCounted

Overrides:

retain in class AbstractReferenceCounted

touch

public DnsMessage touch()

Description copied from interface: ReferenceCounted

Records the current access location of this object for debugging purposes. If this object is determined to be leaked, the information recorded by this operation will be provided to you via ResourceLeakDetector. This method is a shortcut to touch(null).

Specified by:

touch in interface ReferenceCounted

Overrides:

touch in class AbstractReferenceCounted

newHeader

protected abstract DnsHeader newHeader(int id)