public abstract class AbstractEntryProcessor<K,V> extends Object implements EntryProcessor<K,V>
EntryProcessorthat already has implemented the
getBackupProcessor(). In a most cases you want the same logic to be executed on the primary and on the backup. This implementation has this behavior. Note that there is a possibility which an
AbstractEntryProcessorcan see that a key exists but its backup processor may not find it due to an unsent backup of a previous operation (e.g. a previous put). In those situations, Hazelcast internally/eventually will sync those owner and backup partitions so you will not lose any data. Because AbstractEntryProcessor uses the same processor in both owner and backup, you should take this case into account when implementing
|Constructor and Description|
Creates an AbstractEntryProcessor that applies the
Creates an AbstractEntryProcessor.
|Modifier and Type||Method and Description|
Get the entry processor to be applied to backup entries.
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
EntryProcessor.process(java.util.Map.Entry)to primary and backups.
public AbstractEntryProcessor(boolean applyOnBackup)
applyOnBackup- true if the
EntryProcessor.process(java.util.Map.Entry)should also be applied on the backup.
public final EntryBackupProcessor<K,V> getBackupProcessor()
nullcan be returned to indicate that no backups should be made.
Copyright © 2019 Hazelcast, Inc.. All rights reserved.