| using Spatial4n.Core.Shapes; |
| using System.Collections.Generic; |
| |
| namespace Lucene.Net.Spatial.Util |
| { |
| /* |
| * 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. |
| */ |
| |
| /// <summary> |
| /// Bounded Cache of Shapes associated with docIds. Note, multiple Shapes can be |
| /// associated with a given docId |
| /// <para/> |
| /// WARNING: This class holds the data in an extremely inefficient manner as all Points are in memory as objects and they |
| /// are stored in many Lists (one per document). So it works but doesn't scale. It will be replaced in the future. |
| /// <para/> |
| /// @lucene.internal |
| /// </summary> |
| /// <typeparam name="T"></typeparam> |
| public class ShapeFieldCache<T> where T : IShape |
| { |
| private readonly IList<T>[] cache; |
| public int DefaultLength { get; set; } |
| |
| public ShapeFieldCache(int length, int defaultLength) |
| { |
| cache = new IList<T>[length]; |
| this.DefaultLength = defaultLength; |
| } |
| |
| public virtual void Add(int docid, T s) |
| { |
| IList<T> list = cache[docid]; |
| if (list == null) |
| { |
| list = cache[docid] = new List<T>(DefaultLength); |
| } |
| list.Add(s); |
| } |
| |
| public virtual IList<T> GetShapes(int docid) |
| { |
| return cache[docid]; |
| } |
| } |
| } |