Package io.camunda.zeebe.broker.system.partitions.impl

Class StateControllerImpl

java.lang.Object

io.camunda.zeebe.broker.system.partitions.impl.StateControllerImpl

All Implemented Interfaces:

StateController, AutoCloseable

public class StateControllerImpl
extends Object
implements StateController

Controls how snapshot/recovery operations are performed

Constructor Summary

Constructors

Constructor	Description
StateControllerImpl(ZeebeDbFactory zeebeDbFactory, ConstructableSnapshotStore constructableSnapshotStore, Path runtimeDirectory, AtomixRecordEntrySupplier entrySupplier, ToLongFunction<ZeebeDb> exporterPositionSupplier, ConcurrencyControl concurrencyControl)

Method Summary

Modifier and Type	Method	Description
void	close()
ActorFuture<Void>	closeDb()	Close db if it was opened by StateController.recover()
ActorFuture<ZeebeDb>	recover()	Recovers the state from the snapshot and opens the database
ActorFuture<TransientSnapshot>	takeTransientSnapshot(long lowerBoundSnapshotPosition)	Takes a snapshot based on the given position.

Methods inherited from class java.lang.Object

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

Constructor Details

StateControllerImpl

public StateControllerImpl(ZeebeDbFactory zeebeDbFactory,
 ConstructableSnapshotStore constructableSnapshotStore,
 Path runtimeDirectory,
 AtomixRecordEntrySupplier entrySupplier,
 ToLongFunction<ZeebeDb> exporterPositionSupplier,
 ConcurrencyControl concurrencyControl)

Method Details

takeTransientSnapshot

public ActorFuture<TransientSnapshot> takeTransientSnapshot(long lowerBoundSnapshotPosition)

Description copied from interface: StateController

Takes a snapshot based on the given position. The position is a last processed lower bound event position. When the returned future completes successfully the transient snapshot will be valid.

Specified by:

takeTransientSnapshot in interface StateController

Parameters:

lowerBoundSnapshotPosition - the lower bound snapshot position

Returns:

a future

recover

public ActorFuture<ZeebeDb> recover()

Description copied from interface: StateController

Recovers the state from the snapshot and opens the database

Specified by:

recover in interface StateController

Returns:

ZeebeDb the database which is recovered from the snapshot.

closeDb

public ActorFuture<Void> closeDb()

Description copied from interface: StateController

Close db if it was opened by StateController.recover()

Specified by:

closeDb in interface StateController

Returns:

future

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception