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NodeData.java
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NodeData.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.internal.kernel.api.helpers;
import java.util.Arrays;
import java.util.Map;
import org.neo4j.internal.kernel.api.LabelSet;
import org.neo4j.values.storable.Value;
class NodeData
{
final long id;
private final long[] labels;
final Map<Integer,Value> properties;
NodeData( long id, long[] labels, Map<Integer,Value> properties )
{
if ( labels == null )
{
throw new IllegalArgumentException();
}
this.id = id;
this.labels = labels;
Arrays.sort( labels ); // needed for quick equality check, most of the time, its already sorted anyway
this.properties = properties;
}
LabelSet labelSet()
{
return new LabelSet()
{
@Override
public int numberOfLabels()
{
return labels.length;
}
@Override
public int label( int offset )
{
return (int) labels[offset];
}
@Override
public boolean contains( int labelToken )
{
for ( long label : labels )
{
if ( label == labelToken )
{
return true;
}
}
return false;
}
@Override
public long[] all()
{
return labels;
}
@Override
public int hashCode()
{
return Arrays.hashCode( labels );
}
@Override
public boolean equals( Object obj )
{
if ( obj instanceof LabelSet )
{
long[] input = ((LabelSet) obj).all();
if ( labels == input )
{
return true;
}
if ( input.length != labels.length )
{
return false;
}
return Arrays.equals( labels, input );
}
return false;
}
};
}
}