org.apache.flink.state.changelog

Class ChangelogKeyGroupedPriorityQueue<T>

java.lang.Object

org.apache.flink.state.changelog.ChangelogKeyGroupedPriorityQueue<T>

All Implemented Interfaces:

org.apache.flink.runtime.state.InternalPriorityQueue<T>, org.apache.flink.runtime.state.KeyGroupedInternalPriorityQueue<T>, ChangelogState

public class ChangelogKeyGroupedPriorityQueue<T>
extends Object
implements org.apache.flink.runtime.state.KeyGroupedInternalPriorityQueue<T>, ChangelogState

A KeyGroupedInternalPriorityQueue that keeps state on the underlying delegated KeyGroupedInternalPriorityQueue as well as on the state change log.

Constructor Summary

Constructors

Constructor and Description
ChangelogKeyGroupedPriorityQueue(org.apache.flink.runtime.state.KeyGroupedInternalPriorityQueue<T> delegatedPriorityQueue, org.apache.flink.state.changelog.StateChangeLogger<T,Void> logger, org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer)

Method Summary

Modifier and Type	Method and Description
boolean	add(T toAdd)
void	addAll(Collection<? extends T> toAdd)
StateChangeApplier	getChangeApplier(ChangelogApplierFactory factory)
Set<T>	getSubsetForKeyGroup(int keyGroupId)
boolean	isEmpty()
org.apache.flink.util.CloseableIterator<T>	iterator()
T	peek()
T	poll()
boolean	remove(T toRemove)
void	resetWritingMetaFlag() Enable logging meta data before next writes.
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangelogKeyGroupedPriorityQueue

public ChangelogKeyGroupedPriorityQueue(org.apache.flink.runtime.state.KeyGroupedInternalPriorityQueue<T> delegatedPriorityQueue,
                                        org.apache.flink.state.changelog.StateChangeLogger<T,Void> logger,
                                        org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer)

Method Detail

getSubsetForKeyGroup

public Set<T> getSubsetForKeyGroup(int keyGroupId)

Specified by:

getSubsetForKeyGroup in interface org.apache.flink.runtime.state.KeyGroupedInternalPriorityQueue<T>

poll

@Nullable
public T poll()

Specified by:

poll in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

peek

@Nullable
public T peek()

Specified by:

peek in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

add

public boolean add(T toAdd)

Specified by:

add in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

remove

public boolean remove(T toRemove)

Specified by:

remove in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

size

public int size()

Specified by:

size in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

addAll

public void addAll(@Nullable
                   Collection<? extends T> toAdd)

Specified by:

addAll in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

iterator

@Nonnull
public org.apache.flink.util.CloseableIterator<T> iterator()

Specified by:

iterator in interface org.apache.flink.runtime.state.InternalPriorityQueue<T>

getChangeApplier

public StateChangeApplier getChangeApplier(ChangelogApplierFactory factory)

Specified by:

getChangeApplier in interface ChangelogState

resetWritingMetaFlag

public void resetWritingMetaFlag()

Description copied from interface: ChangelogState

Enable logging meta data before next writes.

Specified by:

resetWritingMetaFlag in interface ChangelogState