Package org.apache.pekko.persistence

Class Recovery

java.lang.Object

org.apache.pekko.persistence.Recovery

All Implemented Interfaces:

Serializable, scala.Equals, scala.Product

public final class Recovery
extends Object
implements scala.Product, Serializable

Recovery mode configuration object to be returned in PersistenceRecovery.recovery().

By default recovers from latest snapshot replays through to the last available event (last sequenceId).

Recovery will start from a snapshot if the persistent actor has previously saved one or more snapshots and at least one of these snapshots matches the specified fromSnapshot criteria. Otherwise, recovery will start from scratch by replaying all stored events.

If recovery starts from a snapshot, the persistent actor is offered that snapshot with a SnapshotOffer message, followed by replayed messages, if any, that are younger than the snapshot, up to the specified upper sequence number bound (toSequenceNr).

param: fromSnapshot criteria for selecting a saved snapshot from which recovery should start. Default is latest (= youngest) snapshot. param: toSequenceNr upper sequence number bound (inclusive) for recovery. Default is no upper bound. param: replayMax maximum number of messages to replay. Default is no limit.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
Recovery(SnapshotSelectionCriteria fromSnapshot, long toSequenceNr, long replayMax)

Method Summary

Modifier and Type	Method	Description
static SnapshotSelectionCriteria	$lessinit$greater$default$1()
static long	$lessinit$greater$default$2()
static long	$lessinit$greater$default$3()
static Recovery	apply(SnapshotSelectionCriteria fromSnapshot, long toSequenceNr, long replayMax)
static SnapshotSelectionCriteria	apply$default$1()
static long	apply$default$2()
static long	apply$default$3()
boolean	canEqual(Object x$1)
Recovery	copy(SnapshotSelectionCriteria fromSnapshot, long toSequenceNr, long replayMax)
SnapshotSelectionCriteria	copy$default$1()
long	copy$default$2()
long	copy$default$3()
static Recovery	create()	Java API
static Recovery	create(long toSequenceNr)	Java API
static Recovery	create(SnapshotSelectionCriteria fromSnapshot)	Java API
static Recovery	create(SnapshotSelectionCriteria fromSnapshot, long toSequenceNr)	Java API
static Recovery	create(SnapshotSelectionCriteria fromSnapshot, long toSequenceNr, long replayMax)	Java API
boolean	equals(Object x$1)
SnapshotSelectionCriteria	fromSnapshot()
int	hashCode()
static Recovery	none()	Convenience method for skipping recovery in PersistentActor.
int	productArity()
Object	productElement(int x$1)
String	productElementName(int x$1)
scala.collection.Iterator<Object>	productIterator()
String	productPrefix()
long	replayMax()
long	toSequenceNr()
String	toString()
static scala.Option<scala.Tuple3<SnapshotSelectionCriteria,Object,Object>>	unapply(Recovery x$0)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface scala.Product

productElementNames

Constructor Details

Recovery

public Recovery(SnapshotSelectionCriteria fromSnapshot,
 long toSequenceNr,
 long replayMax)

Method Details

$lessinit$greater$default$1

public static SnapshotSelectionCriteria $lessinit$greater$default$1()

$lessinit$greater$default$2

public static long $lessinit$greater$default$2()

$lessinit$greater$default$3

public static long $lessinit$greater$default$3()

create

public static Recovery create()

Java API

See Also:

• Recovery

create

public static Recovery create(long toSequenceNr)

Java API

See Also:

• Recovery

create

public static Recovery create(SnapshotSelectionCriteria fromSnapshot)

Java API

See Also:

• Recovery

create

public static Recovery create(SnapshotSelectionCriteria fromSnapshot,
 long toSequenceNr)

Java API

See Also:

• Recovery

create

public static Recovery create(SnapshotSelectionCriteria fromSnapshot,
 long toSequenceNr,
 long replayMax)

Java API

See Also:

• Recovery

none

public static Recovery none()

Convenience method for skipping recovery in PersistentActor.

It will still retrieve previously highest sequence number so that new events are persisted with higher sequence numbers rather than starting from 1 and assuming that there are no previous event with that sequence number.

See Also:

• Recovery

apply

public static Recovery apply(SnapshotSelectionCriteria fromSnapshot,
 long toSequenceNr,
 long replayMax)

apply$default$1

public static SnapshotSelectionCriteria apply$default$1()

apply$default$2

public static long apply$default$2()

apply$default$3

public static long apply$default$3()

unapply

public static scala.Option<scala.Tuple3<SnapshotSelectionCriteria,Object,Object>> unapply(Recovery x$0)

fromSnapshot

public SnapshotSelectionCriteria fromSnapshot()

toSequenceNr

public long toSequenceNr()

replayMax

public long replayMax()

copy

public Recovery copy(SnapshotSelectionCriteria fromSnapshot,
 long toSequenceNr,
 long replayMax)

copy$default$1

public SnapshotSelectionCriteria copy$default$1()

copy$default$2

public long copy$default$2()

copy$default$3

public long copy$default$3()

productPrefix

public String productPrefix()

Specified by:

productPrefix in interface scala.Product

productArity

public int productArity()

Specified by:

productArity in interface scala.Product

productElement

public Object productElement(int x$1)

Specified by:

productElement in interface scala.Product

productIterator

public scala.collection.Iterator<Object> productIterator()

Specified by:

productIterator in interface scala.Product

canEqual

public boolean canEqual(Object x$1)

Specified by:

canEqual in interface scala.Equals

productElementName

public String productElementName(int x$1)

Specified by:

productElementName in interface scala.Product

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object x$1)

Specified by:

equals in interface scala.Equals

Overrides:

equals in class Object