content: /**
   * 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.solr.common.params;
  
  /**
   * A collection of standard params used by Update handlers
   *
   * @version $Id: UpdateParams.java 1165749 2011-09-06 16:20:07Z janhoy $
   * @since solr 1.2
   */
  public interface UpdateParams 
  {
    /** wait till the command has flushed */
    public static String WAIT_FLUSH = "waitFlush";
    
    /** wait for the search to warm up */
    public static String WAIT_SEARCHER = "waitSearcher";
    
    /** overwrite indexing fields */
    public static String OVERWRITE = "overwrite";
    
    /** Commit everything after the command completes */
    public static String COMMIT = "commit";
    
    /** Commit within a certain time period (in ms) */
    public static String COMMIT_WITHIN = "commitWithin";
  
    /** Optimize the index and commit everything after the command completes */
    public static String OPTIMIZE = "optimize";
    
    /** Rollback update commands */
    public static String ROLLBACK = "rollback";
  
    /** Select the update processor chain to use.  A RequestHandler may or may not respect this parameter */
    public static final String UPDATE_CHAIN = "update.chain";
    // TODO: Include the old deprecated param, for removal in Solr 4.0
    public static final String UPDATE_CHAIN_DEPRECATED = "update.processor";
  
    /**
     * If optimizing, set the maximum number of segments left in the index after optimization.  1 is the default (and is equivalent to calling IndexWriter.optimize() in Lucene).
     */
    public static final String MAX_OPTIMIZE_SEGMENTS = "maxSegments";
  
    public static final String EXPUNGE_DELETES = "expungeDeletes";
  }
  