/*
 * Copyright (c) 2002-2009 "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 Affero 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 Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.kernel.impl.persistence;

import javax.transaction.xa.XAResource;

import org.neo4j.kernel.impl.core.PropertyIndex;
import org.neo4j.kernel.impl.nioneo.store.PropertyData;
import org.neo4j.kernel.impl.nioneo.store.PropertyIndexData;
import org.neo4j.kernel.impl.nioneo.store.RelationshipChainPosition;
import org.neo4j.kernel.impl.nioneo.store.RelationshipData;
import org.neo4j.kernel.impl.nioneo.store.RelationshipTypeData;
import org.neo4j.kernel.impl.util.ArrayMap;

/**
 * A connection to a {@link PersistenceSource}. <CODE>ResourceConnection</CODE>
 * contains operations to retrieve the {@link javax.transaction.xa.XAResource}
 * for this connection and to close the connection, optionally returning it to a
 * connection pool.
 */
public interface ResourceConnection
{
    /**
     * Returns the {@link javax.transaction.xa.XAResource} that represents this
     * connection.
     * @return the <CODE>XAResource</CODE> for this connection
     */
    public XAResource getXAResource();

    public void destroy();

    public void nodeDelete( int nodeId );

    public int nodeAddProperty( int nodeId, PropertyIndex index, Object value );

    public void nodeChangeProperty( int nodeId, int propertyId, Object value );

    public void nodeRemoveProperty( int nodeId, int propertyId );

    public void nodeCreate( int id );

    public void relationshipCreate( int id, int typeId, int startNodeId,
        int endNodeId );

    public void relDelete( int relId );

    public int relAddProperty( int relId, PropertyIndex index, Object value );

    public void relChangeProperty( int relId, int propertyId, Object value );

    public void relRemoveProperty( int relId, int propertyId );

    public boolean nodeLoadLight( int id );

    public Object loadPropertyValue( int id );

    public String loadIndex( int id );

    public PropertyIndexData[] loadPropertyIndexes( int maxCount );

    public ArrayMap<Integer,PropertyData> nodeLoadProperties( int nodeId );

    public ArrayMap<Integer,PropertyData> relLoadProperties( int relId );

    public RelationshipData relLoadLight( int id );

    public RelationshipTypeData[] loadRelationshipTypes();

    public void createPropertyIndex( String key, int id );

    public void createRelationshipType( int id, String name );

    public RelationshipChainPosition getRelationshipChainPosition( int nodeId );

    public Iterable<RelationshipData> getMoreRelationships( int nodeId,  
        RelationshipChainPosition position );
}