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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/document/bucket/bucketid.h>
#include <vespa/searchcore/proton/bucketdb/bucketdeltapair.h>
#include <vector>
namespace proton::bucketdb {
class SplitBucketSession;
class JoinBucketsSession;
class BucketDBOwner;
}
namespace proton::documentmetastore {
/**
* Interface for handling bucket changes relevant to the document meta store.
*/
struct IBucketHandler
{
using BucketId = document::BucketId;
virtual ~IBucketHandler() = default;
virtual bucketdb::BucketDBOwner &getBucketDB() const = 0;
/**
* Split the source bucket into two target buckets.
*/
virtual bucketdb::BucketDeltaPair
handleSplit(const bucketdb::SplitBucketSession &session) = 0;
/**
* Join the two source buckets into a target bucket.
*/
virtual bucketdb::BucketDeltaPair
handleJoin(const bucketdb::JoinBucketsSession &session) = 0;
/*
* Adjust active flag on all lids belonging to given bucket
*/
virtual void updateActiveLids(const BucketId &bucketId, bool active) = 0;
/**
* Sets the bucket state to active / inactive.
* Documents that are inactive will not be white-listed during search.
**/
virtual void setBucketState(const BucketId &bucketId, bool active) = 0;
/**
* Sets the bucket state to active, used when adding document db as
* part of live reconfig.
**/
virtual void populateActiveBuckets(BucketId::List buckets) = 0;
};
}
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