Package org.apache.flink.runtime.state

Interface PriorityQueueSetFactory

All Known Subinterfaces:

AsyncKeyedStateBackend<K>, CheckpointableKeyedStateBackend<K>, KeyedStateBackend<K>, TestableKeyedStateBackend<K>

All Known Implementing Classes:

AbstractKeyedStateBackend, AsyncKeyedStateBackendAdaptor, BatchExecutionKeyedStateBackend, HeapKeyedStateBackend, HeapPriorityQueueSetFactory

public interface PriorityQueueSetFactory

Factory for KeyGroupedInternalPriorityQueue instances.

Method Summary

Modifier and Type	Method	Description
<T extends HeapPriorityQueueElement & PriorityComparable<? super T> & Keyed<?>> KeyGroupedInternalPriorityQueue<T>	create(String stateName, org.apache.flink.api.common.typeutils.TypeSerializer<T> byteOrderedElementSerializer)	Creates a KeyGroupedInternalPriorityQueue.
default <T extends HeapPriorityQueueElement & PriorityComparable<? super T> & Keyed<?>> KeyGroupedInternalPriorityQueue<T>	create(String stateName, org.apache.flink.api.common.typeutils.TypeSerializer<T> byteOrderedElementSerializer, boolean allowFutureMetadataUpdates)	Creates a KeyGroupedInternalPriorityQueue.

Method Detail

create

@Nonnull
<T extends HeapPriorityQueueElement & PriorityComparable<? super T> & Keyed<?>> KeyGroupedInternalPriorityQueue<T> create(@Nonnull
                                                                                                                          String stateName,
                                                                                                                          @Nonnull
                                                                                                                          org.apache.flink.api.common.typeutils.TypeSerializer<T> byteOrderedElementSerializer)

Creates a KeyGroupedInternalPriorityQueue.

Type Parameters:

T - type of the stored elements.

Parameters:

stateName - unique name for associated with this queue.

byteOrderedElementSerializer - a serializer that with a format that is lexicographically ordered in alignment with elementPriorityComparator.

Returns:

the queue with the specified unique name.

create

default <T extends HeapPriorityQueueElement & PriorityComparable<? super T> & Keyed<?>> KeyGroupedInternalPriorityQueue<T> create(@Nonnull
                                                                                                                                  String stateName,
                                                                                                                                  @Nonnull
                                                                                                                                  org.apache.flink.api.common.typeutils.TypeSerializer<T> byteOrderedElementSerializer,
                                                                                                                                  boolean allowFutureMetadataUpdates)

Creates a KeyGroupedInternalPriorityQueue.

Type Parameters:

T - type of the stored elements.

Parameters:

stateName - unique name for associated with this queue.

byteOrderedElementSerializer - a serializer that with a format that is lexicographically ordered in alignment with elementPriorityComparator.

allowFutureMetadataUpdates - whether allow metadata to update in the future or not.

Returns:

the queue with the specified unique name.