org.neo4j.kernel.impl.api.index.SwallowingIndexUpdater Maven / Gradle / Ivy

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/*
 * Copyright (c) 2002-2015 "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 .
 */
package org.neo4j.kernel.impl.api.index;

import java.io.IOException;

import org.neo4j.collection.primitive.PrimitiveLongSet;
import org.neo4j.kernel.api.index.IndexEntryConflictException;
import org.neo4j.kernel.api.index.IndexUpdater;
import org.neo4j.kernel.api.index.NodePropertyUpdate;
import org.neo4j.kernel.api.index.Reservation;

public final class SwallowingIndexUpdater implements IndexUpdater
{
    public static final IndexUpdater INSTANCE = new org.neo4j.kernel.impl.api.index.SwallowingIndexUpdater();

    public SwallowingIndexUpdater()
    {
    }

    @Override
    public Reservation validate( Iterable updates ) throws IOException
    {
        return Reservation.EMPTY;
    }

    @Override
    public void process( NodePropertyUpdate update )
    {
        // intentionally swallow this update
    }

    @Override
    public void close() throws IOException, IndexEntryConflictException
    {
        // nothing to close
    }

    @Override
    public void remove( PrimitiveLongSet nodeIds )
    {
        // intentionally swallow these removals
    }
}