001/*
002 * Copyright (C) 2014 Jörg Prante
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.xbib.elasticsearch.plugin.jdbc.util;
017
018import java.util.EnumSet;
019import java.util.Set;
020
021import static org.elasticsearch.common.collect.Sets.newHashSet;
022
023/**
024 * The names of keys with a special meaning for controlling Elasticsearch indexing.
025 * Mostly, they map to the Elasticsearch bulk item control keys.
026 * The _job column denotes an ID for the event of a fetch execution.
027 */
028public enum ControlKeys {
029
030    _optype, _index, _type, _id, _version, _timestamp, _ttl, _routing, _parent, _source, _job;
031
032    public static Set<String> makeSet() {
033        Set<String> set = newHashSet();
034        for (ControlKeys k : EnumSet.allOf(ControlKeys.class)) {
035            set.add(k.name());
036        }
037        return set;
038    }
039
040}