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FusionSelector10.java
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FusionSelector10.java
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/*
* Copyright (c) 2002-2018 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.index.schema.fusion;
import org.neo4j.internal.kernel.api.IndexQuery;
import org.neo4j.internal.kernel.api.IndexQuery.ExistsPredicate;
import org.neo4j.storageengine.api.schema.IndexReader;
import org.neo4j.values.storable.Value;
import org.neo4j.values.storable.ValueGroup;
import org.neo4j.values.storable.Values;
import static org.neo4j.internal.kernel.api.IndexQuery.*;
import static org.neo4j.internal.kernel.api.IndexQuery.ExactPredicate;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexBase.LUCENE;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexBase.NUMBER;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexBase.SPATIAL;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexBase.TEMPORAL;
/**
* Selector for "lucene+native-1.x".
* Separates numbers into native index.
*/
public class FusionSelector10 implements FusionIndexProvider.Selector
{
@Override
public void validateSatisfied( Object[] instances )
{
FusionIndexBase.validateSelectorInstances( instances, NUMBER, LUCENE, SPATIAL, TEMPORAL );
}
@Override
public int selectSlot( Value... values )
{
if ( values.length > 1 )
{
// Multiple values must be handled by lucene
return LUCENE;
}
Value singleValue = values[0];
if ( singleValue.valueGroup() == ValueGroup.NUMBER )
{
return NUMBER;
}
if ( Values.isGeometryValue( singleValue ) )
{
return SPATIAL;
}
if ( Values.isTemporalValue( singleValue ) )
{
return TEMPORAL;
}
return LUCENE;
}
@Override
public IndexReader select( IndexReader[] instances, IndexQuery... predicates )
{
if ( predicates.length > 1 )
{
return instances[LUCENE];
}
IndexQuery predicate = predicates[0];
if ( predicate instanceof ExactPredicate )
{
ExactPredicate exactPredicate = (ExactPredicate) predicate;
return select( instances, exactPredicate.value() );
}
if ( predicate instanceof RangePredicate )
{
switch ( predicate.valueGroup() )
{
case NUMBER:
return instances[NUMBER];
case GEOMETRY:
return instances[SPATIAL];
case DATE:
case LOCAL_DATE_TIME:
case ZONED_DATE_TIME:
case LOCAL_TIME:
case ZONED_TIME:
case DURATION:
return instances[TEMPORAL];
default: // fall through
}
}
if ( predicate instanceof ExistsPredicate )
{
return null;
}
return instances[LUCENE];
}
}