Package org.apache.activemq.broker.region

Class NullMessageReference

java.lang.Object

org.apache.activemq.broker.region.NullMessageReference

All Implemented Interfaces:

MessageReference, QueueMessageReference

public final class NullMessageReference
extends Object
implements QueueMessageReference

Used by the QueueMessageReference.NULL_MESSAGE

Field Summary

Fields inherited from interface org.apache.activemq.broker.region.QueueMessageReference

NULL_MESSAGE

Constructor Summary

Constructors

Constructor	Description
NullMessageReference()

Method Summary

Modifier and Type	Method	Description
boolean	canProcessAsExpired()
int	decrementReferenceCount()
void	drop()
boolean	dropIfLive()
long	getExpiration()
String	getGroupID()
int	getGroupSequence()
LockOwner	getLockOwner()
Message	getMessage()
Message	getMessageHardRef()
MessageId	getMessageId()
int	getRedeliveryCounter()
int	getReferenceCount()
Destination	getRegionDestination()
int	getSize()
ConsumerId	getTargetConsumerId()
void	incrementRedeliveryCounter()
int	incrementReferenceCount()
boolean	isAcked()
boolean	isAdvisory()
boolean	isDropped()	Returns true if this message is dropped.
boolean	isExpired()	Returns true if this message is expired
boolean	isPersistent()
boolean	lock(LockOwner subscription)
void	setAcked(boolean b)
boolean	unlock()

Methods inherited from class java.lang.Object

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

Constructor Detail

NullMessageReference

public NullMessageReference()

Method Detail

drop

public void drop()

Specified by:

drop in interface QueueMessageReference

dropIfLive

public boolean dropIfLive()

Specified by:

dropIfLive in interface QueueMessageReference

getLockOwner

public LockOwner getLockOwner()

Specified by:

getLockOwner in interface QueueMessageReference

isAcked

public boolean isAcked()

Specified by:

isAcked in interface QueueMessageReference

isDropped

public boolean isDropped()

Description copied from interface: MessageReference

Returns true if this message is dropped.

Specified by:

isDropped in interface MessageReference

Specified by:

isDropped in interface QueueMessageReference

lock

public boolean lock(LockOwner subscription)

Specified by:

lock in interface QueueMessageReference

setAcked

public void setAcked(boolean b)

Specified by:

setAcked in interface QueueMessageReference

unlock

public boolean unlock()

Specified by:

unlock in interface QueueMessageReference

decrementReferenceCount

public int decrementReferenceCount()

Specified by:

decrementReferenceCount in interface MessageReference

getExpiration

public long getExpiration()

Specified by:

getExpiration in interface MessageReference

getGroupID

public String getGroupID()

Specified by:

getGroupID in interface MessageReference

getGroupSequence

public int getGroupSequence()

Specified by:

getGroupSequence in interface MessageReference

getMessage

public Message getMessage()

Specified by:

getMessage in interface MessageReference

getMessageHardRef

public Message getMessageHardRef()

Specified by:

getMessageHardRef in interface MessageReference

getMessageId

public MessageId getMessageId()

Specified by:

getMessageId in interface MessageReference

getRedeliveryCounter

public int getRedeliveryCounter()

Specified by:

getRedeliveryCounter in interface MessageReference

getReferenceCount

public int getReferenceCount()

Specified by:

getReferenceCount in interface MessageReference

getRegionDestination

public Destination getRegionDestination()

Specified by:

getRegionDestination in interface MessageReference

getSize

public int getSize()

Specified by:

getSize in interface MessageReference

getTargetConsumerId

public ConsumerId getTargetConsumerId()

Specified by:

getTargetConsumerId in interface MessageReference

incrementRedeliveryCounter

public void incrementRedeliveryCounter()

Specified by:

incrementRedeliveryCounter in interface MessageReference

incrementReferenceCount

public int incrementReferenceCount()

Specified by:

incrementReferenceCount in interface MessageReference

isExpired

public boolean isExpired()

Description copied from interface: MessageReference

Returns true if this message is expired

Specified by:

isExpired in interface MessageReference

isPersistent

public boolean isPersistent()

Specified by:

isPersistent in interface MessageReference

isAdvisory

public boolean isAdvisory()

Specified by:

isAdvisory in interface MessageReference

Returns:

true if the message is an advisory

canProcessAsExpired

public boolean canProcessAsExpired()

Specified by:

canProcessAsExpired in interface MessageReference