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;
}
}
}
