pt.unl.fct.di.novasys.babel.crdts.operation.utils

Class Operation

java.lang.Object

pt.unl.fct.di.novasys.babel.crdts.operation.utils.Operation

Direct Known Subclasses:

CounterOperation

public abstract class Operation
extends Object

A generic representation of an operation that is issued (and executed) in operation-based CRDTs. The operation stores its operation type (mapped to an OperationType enumerator instance), the CRDT identifier and its type.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	crdtId
protected CRDTsTypes	crdtType
protected OperationType	opType

Constructor Summary

Constructors

Constructor and Description
Operation(OperationType opType, String crdtId, CRDTsTypes crdtType) Creates a generic operation

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
String	getCrdtId() Get the CRDT identifier
CRDTsTypes	getCrdtType() Gets the CRDT type
OperationType	getOpType() Get the operation type
int	hashCode()
static void	serialize(Operation op, io.netty.buffer.ByteBuf out) Static method that serializes the operation generic information into a ByteBuf.

Methods inherited from class java.lang.Object

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

Field Detail

opType

protected final OperationType opType

crdtId

protected final String crdtId

crdtType

protected final CRDTsTypes crdtType

Constructor Detail

Operation

public Operation(OperationType opType,
                 String crdtId,
                 CRDTsTypes crdtType)

Creates a generic operation

Parameters:

opType - operation type as an OperationType

crdtId - the CRDT identifier

crdtType - the CRDT type as a CRDTsTypes

Method Detail

getOpType

public OperationType getOpType()

Get the operation type

Returns:

the operation type

getCrdtId

public String getCrdtId()

Get the CRDT identifier

Returns:

the CRDT identifier

getCrdtType

public CRDTsTypes getCrdtType()

Gets the CRDT type

Returns:

the CRDT type

serialize

public static void serialize(Operation op,
                             io.netty.buffer.ByteBuf out)
                      throws IOException

Static method that serializes the operation generic information into a ByteBuf. The information is serialized by the following order: operation type, CRDT identifier and CRDT type.

Parameters:

op - operation to be serialized

out - ByteBuf where the operation is serialized

Throws:

IOException - if there is an error parsing the object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object