org.apache.jackrabbit.oak.plugins.document

Class ClusterNodeInfoDocument

java.lang.Object

org.apache.jackrabbit.oak.plugins.document.Document

org.apache.jackrabbit.oak.plugins.document.ClusterNodeInfoDocument

All Implemented Interfaces:

org.apache.jackrabbit.oak.cache.CacheValue

public class ClusterNodeInfoDocument
extends Document

A document storing cluster node info. See also ClusterNodeInfo.

Field Summary

Fields inherited from class org.apache.jackrabbit.oak.plugins.document.Document

data, ID, MOD_COUNT

Constructor Summary

Constructors

Constructor and Description
ClusterNodeInfoDocument()

Method Summary

Modifier and Type	Method and Description
static List<ClusterNodeInfoDocument>	all(DocumentStore store) Returns all cluster node info documents currently available in the given document store.
int	getClusterId()
long	getCreated()
String	getLastWrittenRootRev() the root-revision of the last background write (of unsaved modifications)
long	getLeaseEndTime()
@Nullable Long	getRecoveryBy()
long	getStartTime()
boolean	isActive()
boolean	isBeingRecovered()
boolean	isBeingRecoveredBy(int clusterId) Returns true if the cluster node represented by this document is currently being recovered by the given clusterId.
boolean	isRecoveryNeeded(long currentTimeMillis) Check if _lastRev recovery is needed for cluster node info document.
String	toString()

Methods inherited from class org.apache.jackrabbit.oak.plugins.document.Document

deepCopy, entrySet, format, get, getId, getMemory, getModCount, isSealed, keySet, put, remove, seal, transformAndSeal

Methods inherited from class java.lang.Object

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

Constructor Detail

ClusterNodeInfoDocument

public ClusterNodeInfoDocument()

Method Detail

getCreated

public long getCreated()

Returns:

the timestamp when this document was created.

getLeaseEndTime

public long getLeaseEndTime()

getStartTime

public long getStartTime()

Returns:

the time when this cluster node was started or -1 if not available.

isActive

public boolean isActive()

isBeingRecovered

public boolean isBeingRecovered()

Returns:

true if the recovery lock state is ACQUIRED.

isRecoveryNeeded

public boolean isRecoveryNeeded(long currentTimeMillis)

Check if _lastRev recovery is needed for cluster node info document. Returns true if both of the below conditions are true:

• State is Active
• Current time is past the leaseEnd time or there is a recovery lock on the cluster node info document

Parameters:

currentTimeMillis - the current time in milliseconds since the start start of the epoch.

isBeingRecoveredBy

public boolean isBeingRecoveredBy(int clusterId)

Returns true if the cluster node represented by this document is currently being recovered by the given clusterId.

Parameters:

clusterId - the id of a cluster node.

Returns:

true if being recovered by the given id; false otherwise.

getRecoveryBy

@Nullable
public @Nullable Long getRecoveryBy()

Returns:

the id of the cluster node performing recovery or null if currently not set.

getClusterId

public int getClusterId()

toString

public String toString()

Overrides:

toString in class Document

all

public static List<ClusterNodeInfoDocument> all(DocumentStore store)

Returns all cluster node info documents currently available in the given document store.

Parameters:

store - the document store.

Returns:

list of cluster node info documents.

getLastWrittenRootRev

public String getLastWrittenRootRev()

the root-revision of the last background write (of unsaved modifications)