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GenericNativeIndexProvider.java
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GenericNativeIndexProvider.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.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;
import java.io.File;
import java.io.IOException;
import org.neo4j.index.internal.gbptree.Layout;
import org.neo4j.index.internal.gbptree.RecoveryCleanupWorkCollector;
import org.neo4j.internal.kernel.api.IndexCapability;
import org.neo4j.internal.kernel.api.IndexOrder;
import org.neo4j.internal.kernel.api.IndexValueCapability;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.kernel.api.index.IndexAccessor;
import org.neo4j.kernel.api.index.IndexDirectoryStructure;
import org.neo4j.kernel.api.index.IndexPopulator;
import org.neo4j.kernel.api.index.IndexProvider;
import org.neo4j.kernel.api.schema.index.StoreIndexDescriptor;
import org.neo4j.kernel.impl.api.index.sampling.IndexSamplingConfig;
import org.neo4j.values.storable.ValueCategory;
/**
* Single-value all-in-one native index
*/
public class GenericNativeIndexProvider extends NativeIndexProvider<CompositeGenericKey,NativeIndexValue>
{
public static final String KEY = "all-native"; // TODO should be native, but can't because number index is called that.
public static final IndexProvider.Descriptor DESCRIPTOR = new IndexProvider.Descriptor( KEY, "1.0" );
// TODO implement
public static final IndexCapability CAPABILITY = new IndexCapability()
{
@Override
public IndexOrder[] orderCapability( ValueCategory... valueCategories )
{
return new IndexOrder[0];
}
@Override
public IndexValueCapability valueCapability( ValueCategory... valueCategories )
{
return null;
}
};
public GenericNativeIndexProvider( int priority, IndexDirectoryStructure.Factory directoryStructureFactory, PageCache pageCache,
FileSystemAbstraction fs, Monitor monitor, RecoveryCleanupWorkCollector recoveryCleanupWorkCollector, boolean readOnly )
{
super( DESCRIPTOR, priority, directoryStructureFactory, pageCache, fs, monitor, recoveryCleanupWorkCollector, readOnly );
}
@Override
Layout<CompositeGenericKey,NativeIndexValue> layout( StoreIndexDescriptor descriptor )
{
return new GenericLayout();
}
@Override
protected IndexPopulator newIndexPopulator( File storeFile, Layout<CompositeGenericKey,NativeIndexValue> layout, StoreIndexDescriptor descriptor,
IndexSamplingConfig samplingConfig )
{
return new GenericNativeIndexPopulator( pageCache, fs, storeFile, layout, monitor, descriptor, samplingConfig );
}
@Override
protected IndexAccessor newIndexAccessor( File storeFile, Layout<CompositeGenericKey,NativeIndexValue> layout, StoreIndexDescriptor descriptor,
IndexSamplingConfig samplingConfig ) throws IOException
{
return new GenericNativeIndexAccessor( pageCache, fs, storeFile, layout, recoveryCleanupWorkCollector, monitor, descriptor, samplingConfig );
}
@Override
public IndexCapability getCapability()
{
return CAPABILITY;
}
}