org.apache.ignite.cache

Enum CacheWriteSynchronizationMode

java.lang.Object

java.lang.Enum<CacheWriteSynchronizationMode>

org.apache.ignite.cache.CacheWriteSynchronizationMode

All Implemented Interfaces:

Serializable, Comparable<CacheWriteSynchronizationMode>

public enum CacheWriteSynchronizationMode
extends Enum<CacheWriteSynchronizationMode>

Mode indicating how Ignite should wait for write replies from other nodes. Default value is FULL_ASYNC}, which means that Ignite will not wait for responses from participating nodes. This means that by default remote nodes may get their state updated slightly after any of the cache write methods complete, or after Transaction.commit() method completes.

Note that regardless of write synchronization mode, cache data will always remain fully consistent across all participating nodes.

Write synchronization mode may be configured via CacheConfiguration.getWriteSynchronizationMode() configuration property.

Enum Constant Summary

Enum Constants

Enum Constant and Description
FULL_ASYNC Flag indicating that Ignite will not wait for write or commit responses from participating nodes, which means that remote nodes may get their state updated a bit after any of the cache write methods complete, or after Transaction.commit() method completes.
FULL_SYNC Flag indicating that Ignite should wait for write or commit replies from all nodes.
PRIMARY_SYNC This flag only makes sense for CacheMode.PARTITIONED mode.

Method Summary

Methods

Modifier and Type	Method and Description
static CacheWriteSynchronizationMode	fromOrdinal(int ord) Efficiently gets enumerated value from its ordinal.
static CacheWriteSynchronizationMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static CacheWriteSynchronizationMode[]	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

FULL_SYNC

public static final CacheWriteSynchronizationMode FULL_SYNC

Flag indicating that Ignite should wait for write or commit replies from all nodes. This behavior guarantees that whenever any of the atomic or transactional writes complete, all other participating nodes which cache the written data have been updated.

FULL_ASYNC

public static final CacheWriteSynchronizationMode FULL_ASYNC

Flag indicating that Ignite will not wait for write or commit responses from participating nodes, which means that remote nodes may get their state updated a bit after any of the cache write methods complete, or after Transaction.commit() method completes.

PRIMARY_SYNC

public static final CacheWriteSynchronizationMode PRIMARY_SYNC

This flag only makes sense for CacheMode.PARTITIONED mode. When enabled, Ignite will wait for write or commit to complete on primary node, but will not wait for backups to be updated.

Method Detail

values

public static CacheWriteSynchronizationMode[] 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 (CacheWriteSynchronizationMode c : CacheWriteSynchronizationMode.values())
    System.out.println(c);

Returns:

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

valueOf

public static CacheWriteSynchronizationMode 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 CacheWriteSynchronizationMode fromOrdinal(int ord)

Efficiently gets enumerated value from its ordinal.

Parameters:

ord - Ordinal value.

Returns:

Enumerated value or null if ordinal out of range.