Package org.apache.pekko.persistence.testkit.query.javadsl

Class PersistenceTestKitReadJournal

java.lang.Object

org.apache.pekko.persistence.testkit.query.javadsl.PersistenceTestKitReadJournal

All Implemented Interfaces:

CurrentEventsByPersistenceIdQuery, CurrentEventsByTagQuery, EventsByPersistenceIdQuery, ReadJournal, CurrentEventsBySliceQuery

public final class PersistenceTestKitReadJournal
extends java.lang.Object
implements ReadJournal, EventsByPersistenceIdQuery, CurrentEventsByPersistenceIdQuery, CurrentEventsByTagQuery, CurrentEventsBySliceQuery

Constructor Summary

Constructors

Constructor	Description
PersistenceTestKitReadJournal(PersistenceTestKitReadJournal delegate)

Method Summary

Modifier and Type	Method	Description
Source<EventEnvelope,NotUsed>	currentEventsByPersistenceId(java.lang.String persistenceId, long fromSequenceNr, long toSequenceNr)	Same type of query as pekko.persistence.query.javadsl.EventsByPersistenceIdQuery#eventsByPersistenceId but the event stream is completed immediately when it reaches the end of the "result set".
<Event> Source<EventEnvelope<Event>,NotUsed>	currentEventsBySlices(java.lang.String entityType, int minSlice, int maxSlice, Offset offset)	Same type of query as pekko.persistence.query.typed.javadsl.EventsBySliceQuery.eventsBySlices but the event stream is completed immediately when it reaches the end of the "result set".
Source<EventEnvelope,NotUsed>	currentEventsByTag(java.lang.String tag, Offset offset)	Same type of query as pekko.persistence.query.javadsl.EventsByTagQuery#eventsByTag but the event stream is completed immediately when it reaches the end of the "result set".
Source<EventEnvelope,NotUsed>	eventsByPersistenceId(java.lang.String persistenceId, long fromSequenceNr, long toSequenceNr)	Query events for a specific PersistentActor identified by persistenceId.
static java.lang.String	Identifier()
int	sliceForPersistenceId(java.lang.String persistenceId)
java.util.List<Pair<java.lang.Integer,java.lang.Integer>>	sliceRanges(int numberOfRanges)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PersistenceTestKitReadJournal

public PersistenceTestKitReadJournal(PersistenceTestKitReadJournal delegate)

Method Detail

Identifier

public static java.lang.String Identifier()

eventsByPersistenceId

public Source<EventEnvelope,NotUsed> eventsByPersistenceId(java.lang.String persistenceId,
                                                                 long fromSequenceNr,
                                                                 long toSequenceNr)

Description copied from interface: EventsByPersistenceIdQuery

Query events for a specific PersistentActor identified by persistenceId.

You can retrieve a subset of all events by specifying fromSequenceNr and toSequenceNr or use 0L and Long.MAX_VALUE respectively to retrieve all events. The query will return all the events inclusive of the fromSequenceNr and toSequenceNr values.

The returned event stream should be ordered by sequence number.

The stream is not completed when it reaches the end of the currently stored events, but it continues to push new events when new events are persisted. Corresponding query that is completed when it reaches the end of the currently stored events is provided by pekko.persistence.query.javadsl.CurrentEventsByPersistenceIdQuery#currentEventsByPersistenceId.

Specified by:

eventsByPersistenceId in interface EventsByPersistenceIdQuery

currentEventsByPersistenceId

public Source<EventEnvelope,NotUsed> currentEventsByPersistenceId(java.lang.String persistenceId,
                                                                        long fromSequenceNr,
                                                                        long toSequenceNr)

Description copied from interface: CurrentEventsByPersistenceIdQuery

Same type of query as pekko.persistence.query.javadsl.EventsByPersistenceIdQuery#eventsByPersistenceId but the event stream is completed immediately when it reaches the end of the "result set". Events that are stored after the query is completed are not included in the event stream.

Specified by:

currentEventsByPersistenceId in interface CurrentEventsByPersistenceIdQuery

currentEventsByTag

public Source<EventEnvelope,NotUsed> currentEventsByTag(java.lang.String tag,
                                                              Offset offset)

Description copied from interface: CurrentEventsByTagQuery

Same type of query as pekko.persistence.query.javadsl.EventsByTagQuery#eventsByTag but the event stream is completed immediately when it reaches the end of the "result set". Depending on journal implementation, this may mean all events up to when the query is started, or it may include events that are persisted while the query is still streaming results. For eventually consistent stores, it may only include all events up to some point before the query is started.

Specified by:

currentEventsByTag in interface CurrentEventsByTagQuery

currentEventsBySlices

public <Event> Source<EventEnvelope<Event>,NotUsed> currentEventsBySlices(java.lang.String entityType,
                                                                                int minSlice,
                                                                                int maxSlice,
                                                                                Offset offset)

Description copied from interface: CurrentEventsBySliceQuery

Same type of query as pekko.persistence.query.typed.javadsl.EventsBySliceQuery.eventsBySlices but the event stream is completed immediately when it reaches the end of the "result set". Depending on journal implementation, this may mean all events up to when the query is started, or it may include events that are persisted while the query is still streaming results. For eventually consistent stores, it may only include all events up to some point before the query is started.

Specified by:

currentEventsBySlices in interface CurrentEventsBySliceQuery

sliceForPersistenceId

public int sliceForPersistenceId(java.lang.String persistenceId)

Specified by:

sliceForPersistenceId in interface CurrentEventsBySliceQuery

sliceRanges

public java.util.List<Pair<java.lang.Integer,java.lang.Integer>> sliceRanges(int numberOfRanges)

Specified by:

sliceRanges in interface CurrentEventsBySliceQuery