| /* |
| * 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 Apache.Ignite.Core; |
| using Apache.Ignite.Core.Cache; |
| using Apache.Ignite.Core.Cache.Query; |
| |
| namespace dotnet_helloworld_queries |
| { |
| |
| class Person |
| { |
| public string Name { get; set; } |
| public int Salary { get; set; } |
| } |
| |
| public class UsingScanQueries |
| { |
| public static void ExecutingScanQueries() |
| { |
| var ignite = Ignition.Start(); |
| var cache = ignite.GetOrCreateCache<int, Person>("person_cache"); |
| // tag::scanQry1[] |
| var cursor = cache.Query(new ScanQuery<int, Person>()); |
| // end::scanQry1[] |
| } |
| |
| // tag::scanQry2[] |
| class SalaryFilter : ICacheEntryFilter<int, Person> |
| { |
| public bool Invoke(ICacheEntry<int, Person> entry) |
| { |
| return entry.Value.Salary > 1000; |
| } |
| } |
| |
| public static void ScanQueryFilterDemo() |
| { |
| var ignite = Ignition.Start(); |
| var cache = ignite.GetOrCreateCache<int, Person>("person_cache"); |
| |
| cache.Put(1, new Person {Name = "person1", Salary = 1001}); |
| cache.Put(2, new Person {Name = "person2", Salary = 999}); |
| |
| using (var cursor = cache.Query(new ScanQuery<int, Person>(new SalaryFilter()))) |
| { |
| foreach (var entry in cursor) |
| { |
| Console.WriteLine("Key = " + entry.Key + ", Value = " + entry.Value); |
| } |
| } |
| } |
| |
| // end::scanQry2[] |
| |
| public static void LocalScanQuery() |
| { |
| var ignite = Ignition.Start(); |
| var cache = ignite.GetOrCreateCache<int, Person>("person_cache"); |
| |
| // tag::scanQryLocal[] |
| var query = new ScanQuery<int, Person> {Local = true}; |
| var cursor = cache.Query(query); |
| // end::scanQryLocal[] |
| } |
| } |
| } |