org.apache.ignite.internal.processors.cache.mvcc

Class MvccSnapshotWithoutTxs

java.lang.Object

org.apache.ignite.internal.processors.cache.mvcc.MvccSnapshotWithoutTxs

All Implemented Interfaces:

Serializable, Comparable<MvccVersion>, MvccSnapshot, MvccVersion, Message

public class MvccSnapshotWithoutTxs
extends Object
implements MvccSnapshot

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.apache.ignite.plugin.extensions.communication.Message

DIRECT_TYPE_SIZE

Constructor Summary

Constructors

Constructor and Description
MvccSnapshotWithoutTxs() Required by GridIoMessageFactory.
MvccSnapshotWithoutTxs(long crdVer, long cntr, int opCntr, long cleanupVer)

Method Summary

Modifier and Type	Method and Description
MvccLongList	activeTransactions()
long	cleanupVersion()
long	coordinatorVersion()
long	counter()
short	directType() Gets message type.
byte	fieldsCount() Gets fields count.
void	incrementOperationCounter() Increments operation counter.
void	onAckReceived() Method called when ack message received.
int	operationCounter()
boolean	readFrom(ByteBuffer buf, MessageReader reader) Reads this message from provided byte buffer.
String	toString()
MvccSnapshot	withoutActiveTransactions()
boolean	writeTo(ByteBuffer buf, MessageWriter writer) Writes this message to provided byte buffer.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.internal.processors.cache.mvcc.MvccVersion

compareTo

Constructor Detail

MvccSnapshotWithoutTxs

public MvccSnapshotWithoutTxs()

Required by GridIoMessageFactory.

MvccSnapshotWithoutTxs

public MvccSnapshotWithoutTxs(long crdVer,
                              long cntr,
                              int opCntr,
                              long cleanupVer)

Parameters:

crdVer - Coordinator version.

cntr - Counter.

cleanupVer - Cleanup version.

Method Detail

activeTransactions

public MvccLongList activeTransactions()

Specified by:

activeTransactions in interface MvccSnapshot

Returns:

Active transactions.

coordinatorVersion

public long coordinatorVersion()

Specified by:

coordinatorVersion in interface MvccVersion

Returns:

Coordinator version.

cleanupVersion

public long cleanupVersion()

Specified by:

cleanupVersion in interface MvccSnapshot

Returns:

Cleanup version (all smaller versions are safe to remove).

counter

public long counter()

Specified by:

counter in interface MvccVersion

Returns:

Local counter.

operationCounter

public int operationCounter()

Specified by:

operationCounter in interface MvccVersion

Returns:

Operation id in scope of current transaction.

incrementOperationCounter

public void incrementOperationCounter()

Increments operation counter.

Specified by:

incrementOperationCounter in interface MvccSnapshot

withoutActiveTransactions

public MvccSnapshot withoutActiveTransactions()

Specified by:

withoutActiveTransactions in interface MvccSnapshot

Returns:

Version without active transactions.

writeTo

public boolean writeTo(ByteBuffer buf,
                       MessageWriter writer)

Writes this message to provided byte buffer.

Specified by:

writeTo in interface Message

Parameters:

buf - Byte buffer.

writer - Writer.

Returns:

Whether message was fully written.

readFrom

public boolean readFrom(ByteBuffer buf,
                        MessageReader reader)

Reads this message from provided byte buffer.

Specified by:

readFrom in interface Message

Parameters:

buf - Byte buffer.

reader - Reader.

Returns:

Whether message was fully read.

directType

public short directType()

Gets message type.

Specified by:

directType in interface Message

Returns:

Message type.

fieldsCount

public byte fieldsCount()

Gets fields count.

Specified by:

fieldsCount in interface Message

Returns:

Fields count.

onAckReceived

public void onAckReceived()

Method called when ack message received.

Specified by:

onAckReceived in interface Message

toString

public String toString()

Overrides:

toString in class Object