pt.unl.fct.di.novasys.babel.crdts.delta.causal.generic

Class DeltaCausalBasedCRDT

java.lang.Object

pt.unl.fct.di.novasys.babel.crdts.generic.CRDT

pt.unl.fct.di.novasys.babel.crdts.delta.generic.DeltaBasedCRDT

pt.unl.fct.di.novasys.babel.crdts.delta.causal.generic.DeltaCausalBasedCRDT

All Implemented Interfaces:

DeltaCausalCRDT, DeltaCRDT, GenericCRDT

Direct Known Subclasses:

DeltaAWORSet, DeltaCausalCounter, DeltaEWFlag, DeltaMVRegister, DeltaORMap

public abstract class DeltaCausalBasedCRDT
extends DeltaBasedCRDT
implements DeltaCausalCRDT

Field Summary

Fields

Modifier and Type	Field and Description
protected CausalContext	state

Fields inherited from class pt.unl.fct.di.novasys.babel.crdts.generic.CRDT

type

Constructor Summary

Constructors

Modifier	Constructor and Description
	DeltaCausalBasedCRDT(CRDTsTypes type, CausalContext state)
protected	DeltaCausalBasedCRDT(CRDTsTypes type, ReplicaID replicaID)

Method Summary

Modifier and Type	Method and Description
abstract DeltaCausalBasedCRDT	generateDelta(VersionVector vv) Calculates a delta from a given version for the current state
ReplicaID	getReplicaID() Gets the replica identifier
CausalContext	getReplicaState() Gets the replica state.
abstract DeltaCausalBasedCRDT	mergeDelta(DeltaBasedCRDT delta) Applies a delta to the current state.

Methods inherited from class pt.unl.fct.di.novasys.babel.crdts.generic.CRDT

getType

Methods inherited from class java.lang.Object

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

Methods inherited from interface pt.unl.fct.di.novasys.babel.crdts.delta.causal.generic.DeltaCausalCRDT

getCausalContext, reset

Methods inherited from interface pt.unl.fct.di.novasys.babel.crdts.generic.GenericCRDT

copy, deserializeDataType, getType, serialize

Field Detail

state

protected CausalContext state

Constructor Detail

DeltaCausalBasedCRDT

public DeltaCausalBasedCRDT(CRDTsTypes type,
                            CausalContext state)

DeltaCausalBasedCRDT

protected DeltaCausalBasedCRDT(CRDTsTypes type,
                               ReplicaID replicaID)

Method Detail

getReplicaID

public ReplicaID getReplicaID()

Description copied from interface: DeltaCRDT

Gets the replica identifier

Specified by:

getReplicaID in interface DeltaCRDT

Overrides:

getReplicaID in class DeltaBasedCRDT

Returns:

the replica identifier.

getReplicaState

public CausalContext getReplicaState()

Description copied from interface: DeltaCRDT

Gets the replica state. At the moment this state stores the replica identifier and a version vector to handle causal context.

Specified by:

getReplicaState in interface DeltaCRDT

Overrides:

getReplicaState in class DeltaBasedCRDT

Returns:

the replica state

generateDelta

public abstract DeltaCausalBasedCRDT generateDelta(VersionVector vv)

Description copied from interface: DeltaCRDT

Calculates a delta from a given version for the current state

Specified by:

generateDelta in interface DeltaCRDT

Specified by:

generateDelta in class DeltaBasedCRDT

Parameters:

vv - a version version to calculate the delta from

Returns:

a delta for the current state

mergeDelta

public abstract DeltaCausalBasedCRDT mergeDelta(DeltaBasedCRDT delta)

Description copied from interface: DeltaCRDT

Applies a delta to the current state. This method is analogous to a merge of states

Specified by:

mergeDelta in interface DeltaCRDT

Specified by:

mergeDelta in class DeltaBasedCRDT

Parameters:

delta - a crdt representing the delta

Returns:

the current state