content: package org.apache.lucene.search;
  
  /**
   * 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.
   */
  
  import org.apache.lucene.index.Term;
  
  /**
   * A Filter that restricts search results to values that have a matching prefix in a given
   * field.
   */
  public class PrefixFilter extends MultiTermQueryWrapperFilter<PrefixQuery> {
  
    public PrefixFilter(Term prefix) {
      super(new PrefixQuery(prefix));
    }
  
    public Term getPrefix() { return query.getPrefix(); }
  
    /** Prints a user-readable version of this query. */
    @Override
    public String toString () {
      StringBuilder buffer = new StringBuilder();
      buffer.append("PrefixFilter(");
      buffer.append(getPrefix().toString());
      buffer.append(")");
      return buffer.toString();
    }
  
  }
  
  
  
  