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IndexUpdater.java
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IndexUpdater.java
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/*
* Copyright (c) 2002-2017 "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.api.index;
import java.io.IOException;
import org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException;
/**
* IndexUpdaters are responsible for updating indexes during the commit process. There is one new instance handling
* each commit, created from {@link org.neo4j.kernel.api.index.IndexAccessor}.
*
* {@link #process(IndexEntryUpdate)} is called for each entry, wherein the actual updates are applied.
*
* Each IndexUpdater is not thread-safe, and is assumed to be instantiated per transaction.
*/
public interface IndexUpdater extends AutoCloseable
{
void process( IndexEntryUpdate<?> update ) throws IOException, IndexEntryConflictException;
@Override
void close() throws IOException, IndexEntryConflictException;
}