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RecoveryCleanupWorkCollector.java
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RecoveryCleanupWorkCollector.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.index.internal.gbptree;
import org.neo4j.kernel.lifecycle.Lifecycle;
import org.neo4j.kernel.lifecycle.LifecycleAdapter;
/**
* Place to add recovery cleanup work to be done as part of recovery of {@link GBPTree}.
* <p>
* {@link Lifecycle#init()} must prepare implementing class to be reused, probably by cleaning current state. After
* this, implementing class must be ready to receive new jobs through {@link #add(CleanupJob)}.
* <p>
* Jobs may be processed during {@link #add(CleanupJob) add} or {@link Lifecycle#start() start}.
*/
public interface RecoveryCleanupWorkCollector extends Lifecycle
{
/**
* Adds {@link CleanupJob} to this collector.
*
* @param job cleanup job to perform, now or at some point in the future.
*/
void add( CleanupJob job );
/**
* {@link CleanupJob#run() Runs} {@link #add(CleanupJob) added} cleanup jobs right away in the thread
* calling {@link #add(CleanupJob)}.
*/
RecoveryCleanupWorkCollector IMMEDIATE = new ImmediateRecoveryCleanupWorkCollector();
class ImmediateRecoveryCleanupWorkCollector extends LifecycleAdapter implements RecoveryCleanupWorkCollector
{
@Override
public void add( CleanupJob job )
{
job.run();
}
}
}