Package org.elasticsearch.search.aggregations.bucket

Class DeferringBucketCollector

java.lang.Object

org.elasticsearch.search.aggregations.BucketCollector

org.elasticsearch.search.aggregations.bucket.DeferringBucketCollector

All Implemented Interfaces:

Collector

Direct Known Subclasses:

BestBucketsDeferringCollector, BestDocsDeferringCollector

public abstract class DeferringBucketCollector
extends BucketCollector

A BucketCollector that records collected doc IDs and buckets and allows to replay a subset of the collected buckets.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	DeferringBucketCollector.WrappedAggregator

Field Summary

Fields inherited from class org.elasticsearch.search.aggregations.BucketCollector

NO_OP_COLLECTOR

Constructor Summary

Constructors

Constructor	Description
DeferringBucketCollector()	Sole constructor.

Method Summary

Modifier and Type	Method	Description
abstract void	prepareSelectedBuckets(long... selectedBuckets)
void	replay(long... selectedBuckets)
abstract void	setDeferredCollector(Iterable<BucketCollector> deferredCollectors)	Set the deferred collectors.
Aggregator	wrap(Aggregator in)	Wrap the provided aggregator so that it behaves (almost) as if it had been collected directly.

Methods inherited from class org.elasticsearch.search.aggregations.BucketCollector

getLeafCollector, postCollection, preCollection

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.search.Collector

scoreMode

Constructor Detail

DeferringBucketCollector

public DeferringBucketCollector()

Sole constructor.

Method Detail

setDeferredCollector

public abstract void setDeferredCollector(Iterable<BucketCollector> deferredCollectors)

Set the deferred collectors.

replay

public final void replay(long... selectedBuckets)
                  throws IOException

Throws:

IOException

prepareSelectedBuckets

public abstract void prepareSelectedBuckets(long... selectedBuckets)
                                     throws IOException

Throws:

IOException

wrap

public Aggregator wrap(Aggregator in)

Wrap the provided aggregator so that it behaves (almost) as if it had been collected directly.