public override void DistinctValues(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient cursor, NodePropertyAccessor propertyAccessor, bool needsValues) { BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(cursor, _descriptor.schema().PropertyIds); cursor.Initialize(_descriptor, multiProgressor, new IndexQuery[0], IndexOrder.NONE, needsValues); InstanceSelector.forAll(reader => reader.distinctValues(multiProgressor, propertyAccessor, needsValues)); }
/// <summary> /// OBS this implementation can only provide values for properties of type <seealso cref="string"/>. /// Other property types will still be counted as distinct, but {@code client} won't receive <seealso cref="Value"/> /// instances for those. </summary> /// <param name="client"> <seealso cref="IndexProgressor.NodeValueClient"/> to get initialized with this progression. </param> /// <param name="propertyAccessor"> <seealso cref="NodePropertyAccessor"/> for reading property values. </param> /// <param name="needsValues"> whether or not to load string values. </param> public override void DistinctValues(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient client, NodePropertyAccessor propertyAccessor, bool needsValues) { try { IndexQuery[] noQueries = new IndexQuery[0]; BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(client, _descriptor.schema().PropertyIds); Fields fields = MultiFields.getFields(IndexSearcher.IndexReader); foreach (ValueEncoding valueEncoding in ValueEncoding.values()) { Terms terms = fields.terms(valueEncoding.key()); if (terms != null) { System.Func <BytesRef, Value> valueMaterializer = valueEncoding == ValueEncoding.String && needsValues ? term => Values.stringValue(term.utf8ToString()) : term => null; TermsEnum termsIterator = terms.GetEnumerator(); if (valueEncoding == ValueEncoding.Number) { termsIterator = NumericUtils.filterPrefixCodedLongs(termsIterator); } multiProgressor.Initialize(_descriptor, new LuceneDistinctValuesProgressor(termsIterator, client, valueMaterializer), noQueries, IndexOrder.NONE, needsValues); } } client.Initialize(_descriptor, multiProgressor, noQueries, IndexOrder.NONE, needsValues); } catch (IOException e) { throw new UncheckedIOException(e); } }
private void StartSeekForRange(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient client, IndexQuery.GeometryRangePredicate rangePredicate, IndexQuery[] query) { try { BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(client, descriptor.schema().PropertyIds); client.Initialize(descriptor, multiProgressor, query, IndexOrder.NONE, false); SpaceFillingCurve curve = _spatial.SpaceFillingCurve; double[] from = rangePredicate.From() == null ? null : rangePredicate.From().coordinate(); double[] to = rangePredicate.To() == null ? null : rangePredicate.To().coordinate(); IList <SpaceFillingCurve.LongRange> ranges = curve.GetTilesIntersectingEnvelope(from, to, _configuration); foreach (SpaceFillingCurve.LongRange range in ranges) { SpatialIndexKey treeKeyFrom = layout.newKey(); SpatialIndexKey treeKeyTo = layout.newKey(); InitializeKeys(treeKeyFrom, treeKeyTo); treeKeyFrom.FromDerivedValue(long.MinValue, range.Min); treeKeyTo.FromDerivedValue(long.MaxValue, range.Max + 1); RawCursor <Hit <SpatialIndexKey, VALUE>, IOException> seeker = makeIndexSeeker(treeKeyFrom, treeKeyTo, IndexOrder.NONE); IndexProgressor hitProgressor = new NativeHitIndexProgressor <>(seeker, client, openSeekers); multiProgressor.Initialize(descriptor, hitProgressor, query, IndexOrder.NONE, false); } } catch (System.ArgumentException) { // Invalid query ranges will cause this state (eg. min>max) client.Initialize(descriptor, IndexProgressor.EMPTY, query, IndexOrder.NONE, false); } catch (IOException e) { throw new UncheckedIOException(e); } }
public override void Query(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient cursor, IndexOrder indexOrder, bool needsValues, params IndexQuery[] predicates) { // Spatial does not support providing values if (needsValues) { throw new System.InvalidOperationException("Spatial index does not support providing values"); } if (predicates.Length != 1) { throw new System.ArgumentException("Only single property spatial indexes are supported."); } IndexQuery predicate = predicates[0]; if (predicate is IndexQuery.ExistsPredicate) { LoadAll(); BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(cursor, _descriptor.schema().PropertyIds); cursor.Initialize(_descriptor, multiProgressor, predicates, indexOrder, false); foreach (NativeIndexReader <SpatialIndexKey, NativeIndexValue> reader in this) { reader.Query(multiProgressor, indexOrder, false, predicates); } } else { if (ValidPredicate(predicate)) { CoordinateReferenceSystem crs; if (predicate is IndexQuery.ExactPredicate) { crs = (( PointValue )((IndexQuery.ExactPredicate)predicate).value()).CoordinateReferenceSystem; } else if (predicate is IndexQuery.GeometryRangePredicate) { crs = ((IndexQuery.GeometryRangePredicate)predicate).crs(); } else { throw new System.ArgumentException("Wrong type of predicate, couldn't get CoordinateReferenceSystem"); } SpatialIndexPartReader <NativeIndexValue> part = UncheckedSelect(crs); if (part != null) { part.Query(cursor, indexOrder, false, predicates); } else { cursor.Initialize(_descriptor, IndexProgressor.EMPTY, predicates, indexOrder, false); } } else { cursor.Initialize(_descriptor, IndexProgressor.EMPTY, predicates, indexOrder, false); } } }
public override void DistinctValues(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient cursor, NodePropertyAccessor propertyAccessor, bool needsValues) { LoadAll(); BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(cursor, _descriptor.schema().PropertyIds); cursor.Initialize(_descriptor, multiProgressor, new IndexQuery[0], IndexOrder.NONE, needsValues); //JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET: //ORIGINAL LINE: for (NativeIndexReader<?,NativeIndexValue> reader : this) foreach (NativeIndexReader <object, NativeIndexValue> reader in this) { reader.DistinctValues(multiProgressor, propertyAccessor, needsValues); } }
public override void Query(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient cursor, IndexOrder indexOrder, bool needsValues, params IndexQuery[] predicates) { if (predicates.Length != 1) { throw new System.ArgumentException("Only single property temporal indexes are supported."); } IndexQuery predicate = predicates[0]; if (predicate is IndexQuery.ExistsPredicate) { LoadAll(); BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(cursor, _descriptor.schema().PropertyIds); cursor.Initialize(_descriptor, multiProgressor, predicates, indexOrder, needsValues); //JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET: //ORIGINAL LINE: for (NativeIndexReader<?,NativeIndexValue> reader : this) foreach (NativeIndexReader <object, NativeIndexValue> reader in this) { reader.Query(multiProgressor, indexOrder, needsValues, predicates); } } else { if (ValidPredicate(predicate)) { //JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET: //ORIGINAL LINE: NativeIndexReader<?,NativeIndexValue> part = uncheckedSelect(predicate.valueGroup()); NativeIndexReader <object, NativeIndexValue> part = UncheckedSelect(predicate.ValueGroup()); if (part != null) { part.Query(cursor, indexOrder, needsValues, predicates); } else { cursor.Initialize(_descriptor, IndexProgressor.EMPTY, predicates, indexOrder, needsValues); } } else { cursor.Initialize(_descriptor, IndexProgressor.EMPTY, predicates, indexOrder, needsValues); } } }
public override void Query(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient client, IndexOrder indexOrder, bool needsValues, params IndexQuery[] query) { IndexQuery.GeometryRangePredicate geometryRangePredicate = GetGeometryRangePredicateIfAny(query); if (geometryRangePredicate != null) { ValidateQuery(indexOrder, query); try { // If there's a GeometryRangeQuery among the predicates then this query changes from a straight-forward: build from/to and seek... // into a query that is split into multiple sub-queries. Predicates both before and after will have to be accompanied each sub-query. BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(client, Descriptor.schema().PropertyIds); client.Initialize(Descriptor, multiProgressor, query, indexOrder, needsValues); double[] from = geometryRangePredicate.From() == null ? null : geometryRangePredicate.From().coordinate(); double[] to = geometryRangePredicate.To() == null ? null : geometryRangePredicate.To().coordinate(); CoordinateReferenceSystem crs = geometryRangePredicate.Crs(); SpaceFillingCurve curve = _spaceFillingCurveSettings.forCrs(crs, false); IList <SpaceFillingCurve.LongRange> ranges = curve.GetTilesIntersectingEnvelope(from, to, _configuration); foreach (SpaceFillingCurve.LongRange range in ranges) { // Here's a sub-query that we'll have to do for this geometry range. Build this query from all predicates // and when getting to the geometry range predicate that sparked these sub-query chenanigans, swap in this sub-query in its place. GenericKey treeKeyFrom = Layout.newKey(); GenericKey treeKeyTo = Layout.newKey(); InitializeFromToKeys(treeKeyFrom, treeKeyTo); bool needFiltering = InitializeRangeForGeometrySubQuery(treeKeyFrom, treeKeyTo, query, crs, range); StartSeekForInitializedRange(multiProgressor, treeKeyFrom, treeKeyTo, query, indexOrder, needFiltering, needsValues); } } catch (System.ArgumentException) { // Invalid query ranges will cause this state (eg. min>max) client.Initialize(Descriptor, IndexProgressor.EMPTY, query, indexOrder, needsValues); } } else { base.Query(client, indexOrder, needsValues, query); } }
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#: //ORIGINAL LINE: public void query(org.neo4j.storageengine.api.schema.IndexProgressor_NodeValueClient cursor, org.neo4j.internal.kernel.api.IndexOrder indexOrder, boolean needsValues, org.neo4j.internal.kernel.api.IndexQuery... predicates) throws org.neo4j.internal.kernel.api.exceptions.schema.IndexNotApplicableKernelException public override void Query(Org.Neo4j.Storageengine.Api.schema.IndexProgressor_NodeValueClient cursor, IndexOrder indexOrder, bool needsValues, params IndexQuery[] predicates) { //JAVA TO C# CONVERTER TODO TASK: Method reference arbitrary object instance method syntax is not converted by Java to C# Converter: IndexSlot slot = SlotSelector.selectSlot(predicates, IndexQuery::valueGroup); if (slot != null) { InstanceSelector.select(slot).query(cursor, indexOrder, needsValues, predicates); } else { if (indexOrder != IndexOrder.NONE) { throw new System.NotSupportedException(format("Tried to query index with unsupported order %s. Supported orders for query %s are %s.", indexOrder, Arrays.ToString(predicates), IndexOrder.NONE)); } BridgingIndexProgressor multiProgressor = new BridgingIndexProgressor(cursor, _descriptor.schema().PropertyIds); cursor.Initialize(_descriptor, multiProgressor, predicates, indexOrder, needsValues); try { InstanceSelector.forAll(reader => { try { reader.query(multiProgressor, indexOrder, needsValues, predicates); } catch (IndexNotApplicableKernelException e) { throw new InnerException(e); } }); } catch (InnerException e) { throw e.InnerException; } } }