| /* |
| * 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. |
| */ |
| |
| using System; |
| using Lucene.Net.Documents; |
| |
| namespace Lucene.Net.Index |
| { |
| |
| /// <summary>Provides access to stored term vector of |
| /// a document field. The vector consists of the name of the field, an array of the terms tha occur in the field of the |
| /// <see cref="Lucene.Net.Documents.Document" /> and a parallel array of frequencies. Thus, getTermFrequencies()[5] corresponds with the |
| /// frequency of getTerms()[5], assuming there are at least 5 terms in the Document. |
| /// </summary> |
| public interface ITermFreqVector |
| { |
| /// <summary> The <see cref="IFieldable" /> name. </summary> |
| /// <value> The name of the field this vector is associated with. </value> |
| string Field { get; } |
| |
| /// <value> The number of terms in the term vector. </value> |
| int Size { get; } |
| |
| /// <returns> An Array of term texts in ascending order. |
| /// </returns> |
| System.String[] GetTerms(); |
| |
| |
| /// <summary>Array of term frequencies. Locations of the array correspond one to one |
| /// to the terms in the array obtained from <c>getTerms</c> |
| /// method. Each location in the array contains the number of times this |
| /// term occurs in the document or the document field. |
| /// </summary> |
| int[] GetTermFrequencies(); |
| |
| |
| /// <summary>Return an index in the term numbers array returned from |
| /// <c>getTerms</c> at which the term with the specified |
| /// <c>term</c> appears. If this term does not appear in the array, |
| /// return -1. |
| /// </summary> |
| int IndexOf(System.String term); |
| |
| |
| /// <summary>Just like <c>indexOf(int)</c> but searches for a number of terms |
| /// at the same time. Returns an array that has the same size as the number |
| /// of terms searched for, each slot containing the result of searching for |
| /// that term number. |
| /// |
| /// </summary> |
| /// <param name="terms">array containing terms to look for |
| /// </param> |
| /// <param name="start">index in the array where the list of terms starts |
| /// </param> |
| /// <param name="len">the number of terms in the list |
| /// </param> |
| int[] IndexesOf(System.String[] terms, int start, int len); |
| } |
| } |