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

Method Summary

Modifier and Type	Method	Description
boolean	add(T toAdd)
void	addAll(Collection<? extends T> toAdd)
StateChangeApplier	getChangeApplier(ChangelogApplierFactory factory)
StateChangeLogger<T,Void>	getStateChangeLogger()
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.
<IS> void	setDelegatedState(IS state)
int	size()

Methods inherited from class java.lang.Object

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

Constructor Details

ChangelogKeyGroupedPriorityQueue

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

Method Details

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

setDelegatedState

public <IS> void setDelegatedState(IS state)

Specified by:

setDelegatedState in interface ChangelogState

getStateChangeLogger

public StateChangeLogger<T,Void> getStateChangeLogger()

resetWritingMetaFlag

public void resetWritingMetaFlag()

Description copied from interface: ChangelogState

Enable logging meta data before next writes.

Specified by:

resetWritingMetaFlag in interface ChangelogState