Examples with Indexes com.hazelcast.query.impl.Indexes used on opensource projects

Example 1 with Indexes

use of com.hazelcast.query.impl.Indexes in project hazelcast by hazelcast.

the class MapSplitBrainHandlerService method prepareMergeRunnable.

@Override
public Runnable prepareMergeRunnable() {
    final long now = getNow();
    final Map<String, MapContainer> mapContainers = getMapContainers();
    final Map<MapContainer, Collection<Record>> recordMap = new HashMap<MapContainer, Collection<Record>>(mapContainers.size());
    final IPartitionService partitionService = nodeEngine.getPartitionService();
    final int partitionCount = partitionService.getPartitionCount();
    final Address thisAddress = nodeEngine.getClusterService().getThisAddress();
    for (MapContainer mapContainer : mapContainers.values()) {
        for (int i = 0; i < partitionCount; i++) {
            RecordStore recordStore = mapServiceContext.getPartitionContainer(i).getRecordStore(mapContainer.getName());
            // add your owned entries to the map so they will be merged
            if (thisAddress.equals(partitionService.getPartitionOwner(i))) {
                Collection<Record> records = recordMap.get(mapContainer);
                if (records == null) {
                    records = new ArrayList<Record>();
                    recordMap.put(mapContainer, records);
                }
                final Iterator<Record> iterator = recordStore.iterator(now, false);
                while (iterator.hasNext()) {
                    final Record record = iterator.next();
                    records.add(record);
                }
            }
            // clear all records either owned or backup
            recordStore.reset();
        }
        Indexes indexes = mapContainer.getIndexes();
        indexes.clearIndexes();
    }
    return new Merger(recordMap);
}

Example 2 with Indexes

use of com.hazelcast.query.impl.Indexes in project hazelcast by hazelcast.

the class PostJoinMapOperation method addMapIndex.

public void addMapIndex(MapContainer mapContainer) {
    final Indexes indexes = mapContainer.getIndexes();
    if (indexes.hasIndex()) {
        MapIndexInfo mapIndexInfo = new MapIndexInfo(mapContainer.getName());
        for (Index index : indexes.getIndexes()) {
            mapIndexInfo.addIndexInfo(index.getAttributeName(), index.isOrdered());
        }
        indexInfoList.add(mapIndexInfo);
    }
}

Example 3 with Indexes

use of com.hazelcast.query.impl.Indexes in project hazelcast by hazelcast.

the class RecordStoreTest method testRecordStoreResetWithClearingIndexes.

@Test
public void testRecordStoreResetWithClearingIndexes() {
    IMap<Object, Object> map = testRecordStoreReset();
    Indexes indexes = getIndexService(map);
    indexes.clearIndexes();
    Collection<Object> values = map.values(Predicates.equal("name", "tom"));
    assertTrue(values.isEmpty());
}

Example 4 with Indexes

use of com.hazelcast.query.impl.Indexes in project hazelcast by hazelcast.

the class MapIndexJsonTest method getIndexOfAttributeForMap.

protected static List<Index> getIndexOfAttributeForMap(HazelcastInstance instance, String mapName, String attribute) {
    Node node = getNode(instance);
    MapService service = node.nodeEngine.getService(MapService.SERVICE_NAME);
    MapServiceContext mapServiceContext = service.getMapServiceContext();
    MapContainer mapContainer = mapServiceContext.getMapContainer(mapName);
    List<Index> result = new ArrayList<>();
    for (int partitionId : mapServiceContext.getOrInitCachedMemberPartitions()) {
        Indexes indexes = mapContainer.getIndexes(partitionId);
        result.add(indexes.getIndex(attribute));
    }
    return result;
}

Example 5 with Indexes

use of com.hazelcast.query.impl.Indexes in project hazelcast by hazelcast.

the class IndexStatsChangingNumberOfMembersTest method calculateOverallSelectivity.

protected double calculateOverallSelectivity(long initialHits, double initialTotalSelectivityCount, IMap<?, ?>... maps) {
    List<Indexes> allIndexes = new ArrayList<>();
    for (IMap<?, ?> map : maps) {
        allIndexes.addAll(getAllIndexes(map));
    }
    long totalHitCount = 0;
    double totalNormalizedHitCardinality = 0.0;
    for (Indexes indexes : allIndexes) {
        PerIndexStats perIndexStats = indexes.getIndex("this").getPerIndexStats();
        totalHitCount += perIndexStats.getHitCount();
        totalNormalizedHitCardinality += perIndexStats.getTotalNormalizedHitCardinality();
    }
    double averageHitSelectivity = totalHitCount == 0 ? 0.0 : 1.0 - totalNormalizedHitCardinality / totalHitCount;
    if (totalHitCount + initialHits == 0) {
        return 0.0;
    } else {
        return (averageHitSelectivity * totalHitCount + initialTotalSelectivityCount) / (totalHitCount + initialHits);
    }
}