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SchemaWrite.java
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SchemaWrite.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.internal.kernel.api;
import org.neo4j.internal.kernel.api.exceptions.schema.SchemaKernelException;
import org.neo4j.internal.kernel.api.schema.LabelSchemaDescriptor;
import org.neo4j.internal.kernel.api.schema.RelationTypeSchemaDescriptor;
import org.neo4j.internal.kernel.api.schema.constraints.ConstraintDescriptor;
/**
* Surface for creating and dropping indexes and constraints.
*/
public interface SchemaWrite
{
/**
* Create index from label descriptor
*
* @param descriptor description of the index
* @return the newly created index
*/
IndexReference indexCreate( LabelSchemaDescriptor descriptor ) throws SchemaKernelException;
/**
* Drop the given index
*
* @param index the index to drop
*/
void indexDrop( IndexReference index ) throws SchemaKernelException;
/**
* Create unique property constraint
*
* @param descriptor description of the constraint
*/
ConstraintDescriptor uniquePropertyConstraintCreate( LabelSchemaDescriptor descriptor ) throws SchemaKernelException;
/**
* Create node key constraint
*
* @param descriptor description of the constraint
*/
ConstraintDescriptor nodeKeyConstraintCreate( LabelSchemaDescriptor descriptor ) throws SchemaKernelException;
/**
* Create node property existence constraint
*
* @param descriptor description of the constraint
*/
ConstraintDescriptor nodePropertyExistenceConstraintCreate( LabelSchemaDescriptor descriptor ) throws SchemaKernelException;
/**
* Create relationship property existence constraint
*
* @param descriptor description of the constraint
*/
ConstraintDescriptor relationshipPropertyExistenceConstraintCreate( RelationTypeSchemaDescriptor descriptor )
throws SchemaKernelException;
/**
* Drop constraint
*
* @param descriptor description of the constraint
*/
void constraintDrop( ConstraintDescriptor descriptor ) throws SchemaKernelException;
}