/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.tinkerpop.gremlin.server.handler;

import org.apache.tinkerpop.gremlin.driver.MessageSerializer;
import org.apache.tinkerpop.gremlin.server.op.session.Session;
import io.netty.util.AttributeKey;

/**
 * @author Stephen Mallette (http://stephen.genoprime.com)
 */
public class StateKey {
    public static final AttributeKey<MessageSerializer> SERIALIZER = AttributeKey.valueOf("serializer");
    public static final AttributeKey<Boolean> USE_BINARY = AttributeKey.valueOf("useBinary");
    public static final AttributeKey<Session> SESSION = AttributeKey.valueOf("session");
}

@@ -1018,16 +1018,88 @@
 y;%0A%0A/**%0A
+ * Keys used in the various handlers to store state in the pipeline.%0A *%0A
  * @auth

Add some javadoc.