org.apache.solr.common.params.DisMaxParams Maven / Gradle / Ivy

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/*
 * 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 params used in DisMaxRequestHandler, both for Plugin initialization and for
 * Requests.
 */
public interface DisMaxParams {

  /** query and init param for tiebreaker value */
  public static String TIE = "tie";

  /** query and init param for query fields */
  public static String QF = "qf";

  /** query and init param for phrase boost fields */
  public static String PF = "pf";

  /** query and init param for bigram phrase boost fields */
  public static String PF2 = "pf2";

  /** query and init param for trigram phrase boost fields */
  public static String PF3 = "pf3";

  /** query and init param for MinShouldMatch specification */
  public static String MM = "mm";

  /** If set to true, will try to reduce MM if tokens are removed from some clauses but not all */
  public static String MM_AUTORELAX = "mm.autoRelax";

  /** query and init param for Phrase Slop value in phrase boost query (in pf fields) */
  public static String PS = "ps";

  /** default phrase slop for bigram phrases (pf2) */
  public static String PS2 = "ps2";

  /** default phrase slop for bigram phrases (pf3) */
  public static String PS3 = "ps3";

  /**
   * query and init param for phrase Slop value in phrases explicitly included in the user's query
   * string ( in qf fields)
   */
  public static String QS = "qs";

  /** query and init param for boosting query */
  public static String BQ = "bq";

  /** query and init param for boosting functions */
  public static String BF = "bf";

  /** Alternate query (expressed in Solr QuerySyntax) to use if main query (q) is empty */
  public static String ALTQ = "q.alt";

  /** query and init param for field list */
  public static String GEN = "gen";
}