Package org.apache.ignite.internal.processors.cache.persistence.checkpoint

Class EarliestCheckpointMapSnapshot

java.lang.Object

org.apache.ignite.internal.dto.IgniteDataTransferObject

org.apache.ignite.internal.processors.cache.persistence.checkpoint.EarliestCheckpointMapSnapshot

All Implemented Interfaces:

Externalizable, Serializable

public class EarliestCheckpointMapSnapshot
extends IgniteDataTransferObject

Earliest checkpoint map snapshot. Speeds up construction of the earliestCp map in the CheckpointHistory.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.ignite.internal.dto.IgniteDataTransferObject

V1, V2, V3, V4, V5, V6, V7, V8, V9

Constructor Summary

Constructors

Constructor	Description
EarliestCheckpointMapSnapshot()	Default constructor.
EarliestCheckpointMapSnapshot(Set<UUID> checkpointIds, Map<UUID,Map<Integer,org.apache.ignite.internal.processors.cache.persistence.checkpoint.EarliestCheckpointMapSnapshot.GroupStateSnapshot>> earliestCp)	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	checkpointWasPresent(UUID checkpointId)	Returns true if a checkpoint was present during the snapshot capture, false otherwise.
@Nullable Map<Integer,CheckpointEntry.GroupState>	groupState(UUID checkpointId)	Gets a group state by a checkpoint id.
protected void	readExternalData(byte protoVer, ObjectInput in)	Load object's specific data content.
protected void	writeExternalData(ObjectOutput out)	Save object's specific data content.

Methods inherited from class org.apache.ignite.internal.dto.IgniteDataTransferObject

getProtocolVersion, readExternal, toList, toSet, writeExternal

Methods inherited from class java.lang.Object

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

Constructor Detail

EarliestCheckpointMapSnapshot

public EarliestCheckpointMapSnapshot(Set<UUID> checkpointIds,
                                     Map<UUID,Map<Integer,org.apache.ignite.internal.processors.cache.persistence.checkpoint.EarliestCheckpointMapSnapshot.GroupStateSnapshot>> earliestCp)

Constructor.

EarliestCheckpointMapSnapshot

public EarliestCheckpointMapSnapshot()

Default constructor.

Method Detail

groupState

@Nullable
public @Nullable Map<Integer,CheckpointEntry.GroupState> groupState(UUID checkpointId)

Gets a group state by a checkpoint id.

Parameters:

checkpointId - Checkpoint id.

Returns:

Group state.

checkpointWasPresent

public boolean checkpointWasPresent(UUID checkpointId)

Returns true if a checkpoint was present during the snapshot capture, false otherwise.

Parameters:

checkpointId - Checkpoint id.

Returns:

true if checkpoint was present, false otherwise.

writeExternalData

protected void writeExternalData(ObjectOutput out)
                          throws IOException

Save object's specific data content.

Specified by:

writeExternalData in class IgniteDataTransferObject

Parameters:

out - Output object to write data content.

Throws:

IOException - If I/O errors occur.

readExternalData

protected void readExternalData(byte protoVer,
                                ObjectInput in)
                         throws IOException,
                                ClassNotFoundException

Load object's specific data content.

Specified by:

readExternalData in class IgniteDataTransferObject

Parameters:

protoVer - Input object version.

in - Input object to load data content.

Throws:

IOException - If I/O errors occur.

ClassNotFoundException - If the class for an object being restored cannot be found.