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BoltProtocolHandlerFactory.java
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BoltProtocolHandlerFactory.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.bolt.transport;
import org.neo4j.bolt.BoltChannel;
/**
* Represents a component that instantiates Bolt protocol handlers.
*
* @see BoltMessagingProtocolHandler
*/
@FunctionalInterface
public interface BoltProtocolHandlerFactory
{
/**
* Instantiate a handler for Bolt protocol with the specified version. Return {@code null} when handler for the
* given version can't be instantiated.
*
* @param protocolVersion the version as negishiated by the initial handshake.
* @param channel the channel representing network connection from the client.
* @return new protocol handler when given protocol version is known and valid, {@code null} otherwise.
*/
BoltMessagingProtocolHandler create( long protocolVersion, BoltChannel channel );
}