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ReadOnlyTransactionCommitProcess.java
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ReadOnlyTransactionCommitProcess.java
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/*
* Copyright (c) 2002-2018 "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.impl.api;
import org.neo4j.kernel.api.exceptions.ReadOnlyDbException;
import org.neo4j.internal.kernel.api.exceptions.TransactionFailureException;
import org.neo4j.kernel.impl.transaction.tracing.CommitEvent;
import org.neo4j.storageengine.api.TransactionApplicationMode;
/**
* For databases in dbms.read_only mode, the implementation of {@link org.neo4j.kernel.impl.api.TransactionCommitProcess}
* will simply always throw an exception on commit, to ensure that no changes are made.
*/
public class ReadOnlyTransactionCommitProcess implements TransactionCommitProcess
{
@Override
public long commit( TransactionToApply batch, CommitEvent commitEvent,
TransactionApplicationMode mode ) throws TransactionFailureException
{
throw new ReadOnlyDbException();
}
}