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TransactionalContext.java
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TransactionalContext.java
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/*
* Copyright (c) 2002-2016 "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.query;
import org.neo4j.graphdb.Lock;
import org.neo4j.graphdb.PropertyContainer;
import org.neo4j.kernel.GraphDatabaseQueryService;
import org.neo4j.kernel.api.KernelTransaction;
import org.neo4j.kernel.api.ReadOperations;
import org.neo4j.kernel.api.Statement;
import org.neo4j.kernel.api.dbms.DbmsOperations;
import org.neo4j.kernel.api.security.AccessMode;
import org.neo4j.kernel.api.txstate.TxStateHolder;
public interface TransactionalContext
{
ReadOperations readOperations();
DbmsOperations dbmsOperations();
boolean isTopLevelTx();
void close( boolean success );
void commitAndRestartTx();
void cleanForReuse();
TransactionalContext provideContext();
boolean isOpen();
GraphDatabaseQueryService graph();
Statement statement();
/**
* Check that current context satisfy current execution guard.
* In case if guard criteria is not satisfied {@link org.neo4j.kernel.guard.GuardException} will be thrown.
*/
void check();
TxStateHolder stateView();
Lock acquireWriteLock( PropertyContainer p );
AccessMode accessMode();
KernelTransaction.Revertable restrictCurrentTransaction( AccessMode accessMode );
QuerySession.MetadataKey<TransactionalContext> METADATA_KEY =
new QuerySession.MetadataKey<>( TransactionalContext.class, "transactional-context" );
}