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Locks.java
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Locks.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;
/**
* Methods for acquiring and releasing locks.
*/
public interface Locks
{
void acquireExclusiveNodeLock( long... ids );
void acquireExclusiveRelationshipLock( long... ids );
void acquireExclusiveExplicitIndexLock( long... ids );
void acquireExclusiveLabelLock( long... ids );
void releaseExclusiveNodeLock( long... ids );
void releaseExclusiveRelationshipLock( long... ids );
void releaseExclusiveExplicitIndexLock( long... ids );
void releaseExclusiveLabelLock( long... ids );
void acquireSharedNodeLock( long... ids );
void acquireSharedRelationshipLock( long... ids );
void acquireSharedExplicitIndexLock( long... ids );
void acquireSharedLabelLock( long... ids );
void releaseSharedNodeLock( long... ids );
void releaseSharedRelationshipLock( long... ids );
void releaseSharedExplicitIndexLock( long... ids );
void releaseSharedLabelLock( long... ids );
/**
* Shared token locks are held when new tokens are created.
*/
void acquireSharedTokenLock();
/**
* Exclusive token locks are used to hold back the creation of new tokens.
*
* This is useful for when a lock on "all tokens" are needed.
*/
void acquireExclusiveTokenLock();
/**
* Shared unlabelled node locks are taken when nodes are created without any label.
*/
void acquireSharedUnlabelledNodeLock();
/**
* Exclusive unlabelled node locks are taken when "any label" indexes are dropped or created.
*/
void acquireExclusiveUnlabelledNodeLock();
}