org.apache.flink.runtime.operators.sort

Class ReusingMergeInnerJoinIterator<T1,T2,O>

java.lang.Object

org.apache.flink.runtime.operators.sort.AbstractMergeIterator<T1,T2,O>

org.apache.flink.runtime.operators.sort.AbstractMergeInnerJoinIterator<T1,T2,O>

org.apache.flink.runtime.operators.sort.ReusingMergeInnerJoinIterator<T1,T2,O>

All Implemented Interfaces:

JoinTaskIterator<T1,T2,O>

public class ReusingMergeInnerJoinIterator<T1,T2,O>
extends AbstractMergeInnerJoinIterator<T1,T2,O>

Field Summary

Fields inherited from class org.apache.flink.runtime.operators.sort.AbstractMergeIterator

blockHeadCopy, copy1, copy2, iterator1, iterator2, pairComparator, serializer1, serializer2, spillHeadCopy

Constructor Summary

Constructors

Constructor and Description

ReusingMergeInnerJoinIterator(org.apache.flink.util.MutableObjectIterator<T1> input1, org.apache.flink.util.MutableObjectIterator<T2> input2, org.apache.flink.api.common.typeutils.TypeSerializer<T1> serializer1, org.apache.flink.api.common.typeutils.TypeComparator<T1> comparator1, org.apache.flink.api.common.typeutils.TypeSerializer<T2> serializer2, org.apache.flink.api.common.typeutils.TypeComparator<T2> comparator2, org.apache.flink.api.common.typeutils.TypePairComparator<T1,T2> pairComparator, MemoryManager memoryManager, IOManager ioManager, int numMemoryPages, AbstractInvokable parentTask)

Method Summary

Modifier and Type	Method and Description
protected <T> T	createCopy(org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer, T value, T reuse) Copies an instance of the given type, potentially reusing the object passed as the reuse parameter, which may be null.
protected <T> KeyGroupedIterator<T>	createKeyGroupedIterator(org.apache.flink.util.MutableObjectIterator<T> input, org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer, org.apache.flink.api.common.typeutils.TypeComparator<T> comparator)

Methods inherited from class org.apache.flink.runtime.operators.sort.AbstractMergeInnerJoinIterator

callWithNextKey

Methods inherited from class org.apache.flink.runtime.operators.sort.AbstractMergeIterator

abort, close, crossMatchingGroup, open

Methods inherited from class java.lang.Object

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

Constructor Detail

ReusingMergeInnerJoinIterator

public ReusingMergeInnerJoinIterator(org.apache.flink.util.MutableObjectIterator<T1> input1,
                                     org.apache.flink.util.MutableObjectIterator<T2> input2,
                                     org.apache.flink.api.common.typeutils.TypeSerializer<T1> serializer1,
                                     org.apache.flink.api.common.typeutils.TypeComparator<T1> comparator1,
                                     org.apache.flink.api.common.typeutils.TypeSerializer<T2> serializer2,
                                     org.apache.flink.api.common.typeutils.TypeComparator<T2> comparator2,
                                     org.apache.flink.api.common.typeutils.TypePairComparator<T1,T2> pairComparator,
                                     MemoryManager memoryManager,
                                     IOManager ioManager,
                                     int numMemoryPages,
                                     AbstractInvokable parentTask)
                              throws MemoryAllocationException

Throws:

MemoryAllocationException

Method Detail

createKeyGroupedIterator

protected <T> KeyGroupedIterator<T> createKeyGroupedIterator(org.apache.flink.util.MutableObjectIterator<T> input,
                                                             org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer,
                                                             org.apache.flink.api.common.typeutils.TypeComparator<T> comparator)

Specified by:

createKeyGroupedIterator in class AbstractMergeIterator<T1,T2,O>

createCopy

protected <T> T createCopy(org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer,
                           T value,
                           T reuse)

Description copied from class: AbstractMergeIterator

Copies an instance of the given type, potentially reusing the object passed as the reuse parameter, which may be null.

Specified by:

createCopy in class AbstractMergeIterator<T1,T2,O>