com.hazelcast.query.impl.IndexImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.query.impl;
import com.hazelcast.config.IndexConfig;
import com.hazelcast.internal.monitor.impl.PerIndexStats;
import com.hazelcast.internal.serialization.InternalSerializationService;
import com.hazelcast.internal.util.collection.PartitionIdSet;
import com.hazelcast.query.impl.getters.Extractors;
/**
* Provides implementation of on-heap indexes.
*/
public class IndexImpl extends AbstractIndex {
private final GlobalIndexPartitionTracker partitionTracker;
public IndexImpl(
IndexConfig config,
InternalSerializationService ss,
Extractors extractors,
IndexCopyBehavior copyBehavior,
PerIndexStats stats,
int partitionCount
) {
super(config, ss, extractors, copyBehavior, stats);
partitionTracker = new GlobalIndexPartitionTracker(partitionCount);
}
@Override
protected IndexStore createIndexStore(IndexConfig config, PerIndexStats stats) {
switch (config.getType()) {
case SORTED:
return new OrderedIndexStore(copyBehavior);
case HASH:
return new UnorderedIndexStore(copyBehavior);
case BITMAP:
return new BitmapIndexStore(config);
default:
throw new IllegalArgumentException("unexpected index type: " + config.getType());
}
}
@Override
public void clear() {
super.clear();
partitionTracker.clear();
}
@Override
public boolean hasPartitionIndexed(int partitionId) {
return partitionTracker.isIndexed(partitionId);
}
@Override
public boolean allPartitionsIndexed(int ownedPartitionCount) {
// This check guarantees that all partitions are indexed
// only if there is no concurrent migrations. Check migration stamp
// to detect concurrent migrations if needed.
return ownedPartitionCount < 0 || partitionTracker.indexedCount() == ownedPartitionCount;
}
@Override
public void beginPartitionUpdate() {
partitionTracker.beginPartitionUpdate();
}
@Override
public void markPartitionAsIndexed(int partitionId) {
partitionTracker.partitionIndexed(partitionId);
}
@Override
public void markPartitionAsUnindexed(int partitionId) {
partitionTracker.partitionUnindexed(partitionId);
}
@Override
public long getPartitionStamp(PartitionIdSet expectedPartitionIds) {
return partitionTracker.getPartitionStamp(expectedPartitionIds);
}
@Override
public boolean validatePartitionStamp(long stamp) {
return partitionTracker.validatePartitionStamp(stamp);
}
}