| /* |
| * 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. |
| */ |
| |
| namespace Apache.Ignite.EntityFramework |
| { |
| using System; |
| |
| /// <summary> |
| /// Default caching policy implementation: everything is cached with <see cref="DbCachingMode.ReadWrite"/>, |
| /// no expiration. |
| /// </summary> |
| // ReSharper disable once ClassWithVirtualMembersNeverInherited.Global |
| public class DbCachingPolicy : IDbCachingPolicy |
| { |
| /// <summary> |
| /// Determines whether the specified query can be cached. |
| /// </summary> |
| /// <param name="queryInfo">The query information.</param> |
| /// <returns> |
| /// <c>true</c> if the specified query can be cached; otherwise, <c>false</c>. |
| /// </returns> |
| public virtual bool CanBeCached(DbQueryInfo queryInfo) |
| { |
| return true; |
| } |
| |
| /// <summary> |
| /// Determines whether specified number of rows should be cached. |
| /// </summary> |
| /// <param name="queryInfo">The query information.</param> |
| /// <param name="rowCount">The count of fetched rows.</param> |
| /// <returns></returns> |
| public virtual bool CanBeCached(DbQueryInfo queryInfo, int rowCount) |
| { |
| return true; |
| } |
| |
| /// <summary> |
| /// Gets the absolute expiration timeout for a given query. |
| /// </summary> |
| /// <param name="queryInfo">The query information.</param> |
| /// <returns>Expiration timeout. <see cref="TimeSpan.MaxValue"/> for no expiration.</returns> |
| public virtual TimeSpan GetExpirationTimeout(DbQueryInfo queryInfo) |
| { |
| return TimeSpan.MaxValue; |
| } |
| |
| /// <summary> |
| /// Gets the caching strategy for a give query. |
| /// </summary> |
| /// <param name="queryInfo">The query information.</param> |
| /// <returns>Caching strategy for the query.</returns> |
| public virtual DbCachingMode GetCachingMode(DbQueryInfo queryInfo) |
| { |
| return DbCachingMode.ReadWrite; |
| } |
| } |
| } |