org.gridgain.grid.persistentstore

Enum SnapshotChainMode

java.lang.Object

java.lang.Enum<SnapshotChainMode>

org.gridgain.grid.persistentstore.SnapshotChainMode

All Implemented Interfaces:

Serializable, Comparable<SnapshotChainMode>

public enum SnapshotChainMode
extends Enum<SnapshotChainMode>

There could be connection between different snapshots. It's because we need previous snapshot to restore incremental one and it could be also incremental snapshot and so on. So we could define snapshot chain as Full -> Incremental -> Incremental -> ... Where Full is root. This enum define how to work with such chains.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DEFAULT Default behaviour for operation.
FROM_CURRENT_TO_LAST Will touch all snapshots between current and last one.
FROM_ROOT_TO_CURRENT Will touch all snapshots between root and current snapshot.
SINGLE Touch and work only with certain snapshot.

Method Summary

Modifier and Type	Method and Description
static @Nullable SnapshotChainMode	fromOrdinal(int ord) Efficiently gets enumerated value from its ordinal.
static SnapshotChainMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static SnapshotChainMode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DEFAULT

public static final SnapshotChainMode DEFAULT

Default behaviour for operation.

SINGLE

public static final SnapshotChainMode SINGLE

Touch and work only with certain snapshot.

FROM_ROOT_TO_CURRENT

public static final SnapshotChainMode FROM_ROOT_TO_CURRENT

Will touch all snapshots between root and current snapshot.

FROM_CURRENT_TO_LAST

public static final SnapshotChainMode FROM_CURRENT_TO_LAST

Will touch all snapshots between current and last one.

Method Detail

values

public static SnapshotChainMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SnapshotChainMode c : SnapshotChainMode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SnapshotChainMode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

fromOrdinal

@Nullable
public static @Nullable SnapshotChainMode fromOrdinal(int ord)

Efficiently gets enumerated value from its ordinal.

Parameters:

ord - Ordinal value.

Returns:

Enumerated value or null if ordinal out of range.