| namespace Lucene.Net.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. |
| */ |
| |
| public static class ReferenceManagerExtensions |
| { |
| /// <summary> |
| /// Obtain the current reference. |
| /// <para/> |
| /// Like <see cref="ReferenceManager{G}.Acquire()"/>, but intended for use in a using |
| /// block so calling <see cref="ReferenceManager{G}.Release(G)"/> happens implicitly. |
| /// For example: |
| /// <para/> |
| /// <code> |
| /// var searcherManager = new SearcherManager(indexWriter, true, null); |
| /// using (var context = searcherManager.GetContext()) |
| /// { |
| /// IndexSearcher searcher = context.Reference; |
| /// |
| /// // use searcher... |
| /// } |
| /// </code> |
| /// </summary> |
| /// <typeparam name="T">The reference type</typeparam> |
| /// <param name="referenceManager">this <see cref="ReferenceManager{G}"/></param> |
| /// <returns>A <see cref="ReferenceContext{T}"/> instance that holds the |
| /// <see cref="ReferenceContext{T}.Reference"/> and ensures it is released properly |
| /// when <see cref="ReferenceContext{T}.Dispose()"/> is called.</returns> |
| public static ReferenceContext<T> GetContext<T>(this ReferenceManager<T> referenceManager) where T : class |
| { |
| return new ReferenceContext<T>(referenceManager); |
| } |
| } |
| } |