PersistenceIdsQuery

All Superinterfaces:

ReadJournal

All Known Implementing Classes:

LeveldbReadJournal
```
public interface PersistenceIdsQuery
extends ReadJournal
```
A plugin may optionally support this query by implementing this interface.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Source<java.lang.String,NotUsed> persistenceIds()
  Query all PersistentActor identifiers, i.e.

- Method Detail
  - persistenceIds
```
Source<java.lang.String,NotUsed> persistenceIds()
```
    Query all PersistentActor identifiers, i.e. as defined by the persistenceId of the PersistentActor.
    The stream is not completed when it reaches the end of the currently used persistenceIds, but it continues to push new persistenceIds when new persistent actors are created. Corresponding query that is completed when it reaches the end of the currently currently used persistenceIds is provided by CurrentPersistenceIdsQuery.currentPersistenceIds().