beehive.util

Class NodeMetadata

java.lang.Object

beehive.util.NodeMetadata

All Implemented Interfaces:

Externalizable, Serializable

public class NodeMetadata
extends Object
implements Externalizable

MetaData class hold metadata of the nodes to know if it is in cache or it is the master copy.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
List<Integer>	cacheCopyNodes
long	cachingInProgressFlag
boolean	isMaster
long	lastAccessedTS
int	masterCopySite
String	masterNodeID
String	nodeID
int	numTimesUsed

Constructor Summary

Constructors

Constructor and Description
NodeMetadata()

Method Summary

Modifier and Type	Method and Description
List<Integer>	getCacheCopyNodes()
int	getMasterCopyNode()
String	getMasterNodeID()
String	getNodeID()
boolean	isMaster()
void	readExternal(ObjectInput in)
void	setCacheCopyNodes(ArrayList<Integer> cacheCopyNodes)
void	setMaster(boolean isMaster)
void	setMasterCopyNode(int masterCopyNode)
void	setMasterNodeID(String masterNodeID)
void	setNodeID(String nodeID)
boolean	testAndSet(boolean nonBlocking, long storageSystemThreadId)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

nodeID

public String nodeID

masterNodeID

public String masterNodeID

isMaster

public boolean isMaster

cacheCopyNodes

public List<Integer> cacheCopyNodes

masterCopySite

public int masterCopySite

cachingInProgressFlag

public volatile long cachingInProgressFlag

numTimesUsed

public int numTimesUsed

lastAccessedTS

public long lastAccessedTS

Constructor Detail

NodeMetadata

public NodeMetadata()

Method Detail

getNodeID

public String getNodeID()

setNodeID

public void setNodeID(String nodeID)

getMasterNodeID

public String getMasterNodeID()

setMasterNodeID

public void setMasterNodeID(String masterNodeID)

isMaster

public boolean isMaster()

setMaster

public void setMaster(boolean isMaster)

getCacheCopyNodes

public List<Integer> getCacheCopyNodes()

setCacheCopyNodes

public void setCacheCopyNodes(ArrayList<Integer> cacheCopyNodes)

getMasterCopyNode

public int getMasterCopyNode()

setMasterCopyNode

public void setMasterCopyNode(int masterCopyNode)

testAndSet

public boolean testAndSet(boolean nonBlocking,
                          long storageSystemThreadId)

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException