Package com.hazelcast.jet.pipeline

Enum Class JournalInitialPosition

java.lang.Object

java.lang.Enum<JournalInitialPosition>

com.hazelcast.jet.pipeline.JournalInitialPosition

All Implemented Interfaces:

Serializable, Comparable<JournalInitialPosition>, Constable

public enum JournalInitialPosition
extends Enum<JournalInitialPosition>

When passed to an IMap/ICache Event Journal source, specifies which event to start from. You can start from the oldest event still in the journal or skip all the history and receive only the events that occur after connecting to the event journal.

See:

• Sources.mapJournal(java.lang.String, com.hazelcast.jet.pipeline.JournalInitialPosition, com.hazelcast.function.FunctionEx<? super com.hazelcast.map.EventJournalMapEvent<K, V>, ? extends T>, com.hazelcast.function.PredicateEx<? super com.hazelcast.map.EventJournalMapEvent<K, V>>)
• Sources.remoteMapJournal(java.lang.String, com.hazelcast.client.config.ClientConfig, com.hazelcast.jet.pipeline.JournalInitialPosition, com.hazelcast.function.FunctionEx<? super com.hazelcast.map.EventJournalMapEvent<K, V>, ? extends T>, com.hazelcast.function.PredicateEx<? super com.hazelcast.map.EventJournalMapEvent<K, V>>)
• Sources.cacheJournal(java.lang.String, com.hazelcast.jet.pipeline.JournalInitialPosition, com.hazelcast.function.FunctionEx<? super com.hazelcast.cache.EventJournalCacheEvent<K, V>, ? extends T>, com.hazelcast.function.PredicateEx<? super com.hazelcast.cache.EventJournalCacheEvent<K, V>>)
• Sources.remoteCacheJournal(java.lang.String, com.hazelcast.client.config.ClientConfig, com.hazelcast.jet.pipeline.JournalInitialPosition, com.hazelcast.function.FunctionEx<? super com.hazelcast.cache.EventJournalCacheEvent<K, V>, ? extends T>, com.hazelcast.function.PredicateEx<? super com.hazelcast.cache.EventJournalCacheEvent<K, V>>)

Since:

Jet 3.0

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
START_FROM_CURRENT	Skip all the history and emit only the events that occur after connecting to the journal.
START_FROM_OLDEST	Start from the oldest event still available.

Method Summary

Modifier and Type	Method	Description
static JournalInitialPosition	valueOf(String name)	Returns the enum constant of this class with the specified name.
static JournalInitialPosition[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

START_FROM_OLDEST

public static final JournalInitialPosition START_FROM_OLDEST

Start from the oldest event still available.

START_FROM_CURRENT

public static final JournalInitialPosition START_FROM_CURRENT

Skip all the history and emit only the events that occur after connecting to the journal.

Method Details

values

public static JournalInitialPosition[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static JournalInitialPosition valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null