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Write.java
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Write.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.internal.kernel.api;
import org.neo4j.values.storable.Value;
/**
* Defines the write operations of the Kernel API.
*/
public interface Write
{
long nodeCreate();
void nodeDelete( long node );
long relationshipCreate( long sourceNode, int relationshipLabel, long targetNode );
void relationshipDelete( long relationship );
void nodeAddLabel( long node, int nodeLabel );
void nodeRemoveLabel( long node, int nodeLabel );
// TODO: Define property value hierarchy
// We will want a value type hierarchy to avoid passing objects around, which should be shared by all of Neo4j
// server. This can hold general logic such as equality, coercion, ordering and comparability. It also needs some
// visitor/writer functionality so we can break out large logic and eg. file formats.
// This method will become
// void nodeSetProperty( long node, int propertyKey, Value value );
void nodeSetProperty( long node, int propertyKey, Object value );
void nodeRemoveProperty( long node, int propertyKey );
void relationshipSetProperty( long relationship, int propertyKey, Value value );
void relationshipRemoveProperty( long node, int propertyKey );
}