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OffHeapCollectionsFactory.java
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OffHeapCollectionsFactory.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.util.collection;
import org.eclipse.collections.api.map.primitive.MutableIntObjectMap;
import org.eclipse.collections.api.map.primitive.MutableLongObjectMap;
import org.eclipse.collections.api.set.primitive.MutableIntSet;
import org.eclipse.collections.api.set.primitive.MutableLongSet;
import org.eclipse.collections.impl.map.mutable.primitive.IntObjectHashMap;
import org.eclipse.collections.impl.map.mutable.primitive.LongObjectHashMap;
import org.eclipse.collections.impl.set.mutable.primitive.IntHashSet;
import org.eclipse.collections.impl.set.mutable.primitive.LongHashSet;
import org.neo4j.kernel.impl.util.diffsets.MutableLongDiffSetsImpl;
import org.neo4j.memory.MemoryAllocationTracker;
import org.neo4j.memory.MemoryTracker;
import static java.util.Objects.requireNonNull;
class OffHeapCollectionsFactory implements CollectionsFactory
{
private final MemoryAllocationTracker memoryTracker;
OffHeapCollectionsFactory( MemoryAllocationTracker memoryTracker )
{
this.memoryTracker = requireNonNull( memoryTracker );
}
@Override
public MutableLongSet newLongSet()
{
return new LongHashSet();
}
@Override
public MutableIntSet newIntSet()
{
return new IntHashSet();
}
@Override
public <V> MutableLongObjectMap<V> newLongObjectMap()
{
return new LongObjectHashMap<>();
}
@Override
public <V> MutableIntObjectMap<V> newIntObjectMap()
{
return new IntObjectHashMap<>();
}
@Override
public MutableLongDiffSetsImpl newLongDiffSets()
{
return new MutableLongDiffSetsImpl( this );
}
@Override
public MemoryTracker getMemoryTracker()
{
return memoryTracker;
}
@Override
public boolean collectionsMustBeReleased()
{
return true;
}
}