Package org.apache.druid.java.util.common.guava

Class MergeSequence<T>

java.lang.Object

org.apache.druid.java.util.common.guava.YieldingSequenceBase<T>

org.apache.druid.java.util.common.guava.MergeSequence<T>

All Implemented Interfaces:

Sequence<T>

public class MergeSequence<T>
extends YieldingSequenceBase<T>

Used to perform an n-way merge on n ordered sequences

Constructor Summary

Constructors

Constructor	Description
MergeSequence(com.google.common.collect.Ordering<? super T> ordering, Sequence<? extends Sequence<? extends T>> baseSequences)

Method Summary

Modifier and Type	Method	Description
<OutType> Yielder<OutType>	toYielder(OutType initValue, YieldingAccumulator<OutType,T> accumulator)	Return a Yielder for accumulated sequence.

Methods inherited from class org.apache.druid.java.util.common.guava.YieldingSequenceBase

accumulate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.java.util.common.guava.Sequence

filter, flatMap, flatMerge, forEach, limit, map, skip, toList, withBaggage, withEffect

Constructor Details

MergeSequence

public MergeSequence(com.google.common.collect.Ordering<? super T> ordering,
 Sequence<? extends Sequence<? extends T>> baseSequences)

Method Details

toYielder

public <OutType> Yielder<OutType> toYielder(OutType initValue,
 YieldingAccumulator<OutType,T> accumulator)

Description copied from interface: Sequence

Return a Yielder for accumulated sequence.

Type Parameters:

OutType - the type of accumulated value.

Parameters:

initValue - the initial value to pass along to start the accumulation.

accumulator - the accumulator which is responsible for accumulating input values.

Returns:

a Yielder for accumulated sequence.

See Also:

• Yielder