Package org.opendaylight.controller.cluster.datastore.persisted

Class CommitTransactionPayload

java.lang.Object

org.opendaylight.controller.cluster.raft.messages.Payload

org.opendaylight.controller.cluster.raft.messages.IdentifiablePayload<TransactionIdentifier>

org.opendaylight.controller.cluster.datastore.persisted.CommitTransactionPayload

All Implemented Interfaces:

Serializable, Identifiable<TransactionIdentifier>

@Beta
public abstract sealed class CommitTransactionPayload
extends IdentifiablePayload<TransactionIdentifier>
implements Serializable

Payload persisted when a transaction commits. It contains the transaction identifier and the DataTreeCandidate

Author:

Robert Varga

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
Map.Entry<TransactionIdentifier,DataTreeCandidateInputOutput.DataTreeCandidateWithVersion>	acquireCandidate()	The cached candidate needs to be cleared after it is done applying to the DataTree, otherwise it would be keeping deserialized in memory which are not needed anymore leading to wasted memory.
static @NonNull CommitTransactionPayload	create(TransactionIdentifier transactionId, DataTreeCandidate candidate)
static @NonNull CommitTransactionPayload	create(TransactionIdentifier transactionId, DataTreeCandidate candidate, PayloadVersion version)
static @NonNull CommitTransactionPayload	create(TransactionIdentifier transactionId, DataTreeCandidate candidate, PayloadVersion version, int initialSerializedBufferCapacity)
@NonNull Map.Entry<TransactionIdentifier,DataTreeCandidateInputOutput.DataTreeCandidateWithVersion>	getCandidate()
final @NonNull Map.Entry<TransactionIdentifier,DataTreeCandidateInputOutput.DataTreeCandidateWithVersion>	getCandidate(ReusableStreamReceiver receiver)
TransactionIdentifier	getIdentifier()
final int	serializedSize()	Return the estimate of serialized size of this payload when passed through serialization.
final String	toString()
final Object	writeReplace()	Return the serialization proxy for this object.

Methods inherited from class org.opendaylight.controller.cluster.raft.messages.Payload

size

Methods inherited from class java.lang.Object

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

Method Details

create

public static @NonNull CommitTransactionPayload create(TransactionIdentifier transactionId,
 DataTreeCandidate candidate,
 PayloadVersion version,
 int initialSerializedBufferCapacity)
                                                throws IOException

Throws:

IOException

create

public static @NonNull CommitTransactionPayload create(TransactionIdentifier transactionId,
 DataTreeCandidate candidate,
 PayloadVersion version)
                                                throws IOException

Throws:

IOException

create

public static @NonNull CommitTransactionPayload create(TransactionIdentifier transactionId,
 DataTreeCandidate candidate)
                                                throws IOException

Throws:

IOException

getCandidate

public @NonNull Map.Entry<TransactionIdentifier,DataTreeCandidateInputOutput.DataTreeCandidateWithVersion> getCandidate()
                                                                                                                 throws IOException

Throws:

IOException

getCandidate

public final @NonNull Map.Entry<TransactionIdentifier,DataTreeCandidateInputOutput.DataTreeCandidateWithVersion> getCandidate(ReusableStreamReceiver receiver)
                                                                                                                       throws IOException

Throws:

IOException

getIdentifier

public TransactionIdentifier getIdentifier()

Specified by:

getIdentifier in interface Identifiable<TransactionIdentifier>

serializedSize

public final int serializedSize()

Description copied from class: Payload

Return the estimate of serialized size of this payload when passed through serialization. The estimate needs to be reasonably accurate and should err on the side of caution and report a slightly-higher size in face of uncertainty.

Specified by:

serializedSize in class Payload

Returns:

An estimate of serialized size.

acquireCandidate

public Map.Entry<TransactionIdentifier,DataTreeCandidateInputOutput.DataTreeCandidateWithVersion> acquireCandidate()
                                                                                                            throws IOException

The cached candidate needs to be cleared after it is done applying to the DataTree, otherwise it would be keeping deserialized in memory which are not needed anymore leading to wasted memory. This lets the payload know that this was the last time the candidate was needed ant it is safe to be cleared.

Throws:

IOException

toString

public final String toString()

Overrides:

toString in class Object

writeReplace

public final Object writeReplace()

Description copied from class: Payload

Return the serialization proxy for this object.

Specified by:

writeReplace in class Payload

Returns:

Serialization proxy