Package es.bsc.dataclay.util

Class ReferenceCounting

java.lang.Object

es.bsc.dataclay.util.ReferenceCounting

public class ReferenceCounting
extends Object

Constructor Summary

Constructors

Constructor	Description
ReferenceCounting()	Reference counting constructor

Method Summary

Modifier and Type	Method	Description
void	deserializeReferenceCounting(ObjectID referrerObjectID, byte[] bytes)	Deserialize reference counting
int	getExternalReferences()	Get number of external references
Map<BackendID,Map<ObjectID,Integer>>	getReferenceCounting()	Get ref.
void	incrementReferenceCounting(ObjectID objectID, BackendID hint)	Add +1 to reference counting
void	serializeReferenceCounting(DataClayObject dcObject, DataClayByteBuffer dcBuffer)	Serialize reference counting
void	setExternalReferences(int theexternalReferences)	Set number of external references

Methods inherited from class java.lang.Object

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

Constructor Detail

ReferenceCounting

public ReferenceCounting()

Reference counting constructor

Method Detail

getExternalReferences

public int getExternalReferences()

Get number of external references

Returns:

externalReferences number of external references

setExternalReferences

public void setExternalReferences(int theexternalReferences)

Set number of external references

Parameters:

theexternalReferences - number of external references

incrementReferenceCounting

public void incrementReferenceCounting(ObjectID objectID,
                                       BackendID hint)

Add +1 to reference counting

Parameters:

objectID - Object id to increment counter

hint - If not null, is added to proper reference counting, otherwise to Null entry (GlobalGC need to ask LM)

serializeReferenceCounting

public void serializeReferenceCounting(DataClayObject dcObject,
                                       DataClayByteBuffer dcBuffer)

Serialize reference counting

Parameters:

dcObject - object being serialized with ref counting

dcBuffer - Buffer in which to write bytes.

deserializeReferenceCounting

public void deserializeReferenceCounting(ObjectID referrerObjectID,
                                         byte[] bytes)

Deserialize reference counting

Parameters:

referrerObjectID - ID of referrer object.

bytes - Bytes representing the reference counting

getReferenceCounting

public Map<BackendID,Map<ObjectID,Integer>> getReferenceCounting()

Get ref. counting

Returns:

Ref. counting