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/*
* 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.Examples.Sql
{
using System;
using Apache.Ignite.Core;
using Apache.Ignite.Core.Cache;
using Apache.Ignite.Core.Cache.Affinity;
using Apache.Ignite.Core.Cache.Configuration;
using Apache.Ignite.Core.Cache.Query;
using Apache.Ignite.ExamplesDll.Binary;
/// <summary>
/// This example populates cache with sample data and runs SQL queries.
/// <para />
/// 1) Build the project Apache.Ignite.ExamplesDll (select it -> right-click -> Build).
/// 2) Set this class as startup object (Apache.Ignite.Examples project -> right-click -> Properties ->
/// Application -> Startup object);
/// 3) Start example (F5 or Ctrl+F5).
/// <para />
/// This example can be run with standalone Apache Ignite.NET node:
/// 1) Run %IGNITE_HOME%/platforms/dotnet/bin/Apache.Ignite.exe:
/// Apache.Ignite.exe -configFileName=platforms\dotnet\examples\apache.ignite.examples\app.config
/// 2) Start example.
/// </summary>
public class SqlExample
{
/// <summary>Organization cache name.</summary>
private const string OrganizationCacheName = "dotnet_cache_query_organization";
/// <summary>Employee cache name.</summary>
private const string EmployeeCacheName = "dotnet_cache_query_employee";
/// <summary>Employee cache name.</summary>
private const string EmployeeCacheNameColocated = "dotnet_cache_query_employee_colocated";
[STAThread]
public static void Main()
{
using (var ignite = Ignition.StartFromApplicationConfiguration())
{
Console.WriteLine();
Console.WriteLine(">>> Cache query example started.");
var employeeCache = ignite.GetOrCreateCache<int, Employee>(
new CacheConfiguration(EmployeeCacheName, new QueryEntity(typeof(int), typeof(Employee))));
var employeeCacheColocated = ignite.GetOrCreateCache<AffinityKey, Employee>(
new CacheConfiguration(EmployeeCacheNameColocated,
new QueryEntity(typeof(AffinityKey), typeof(Employee))));
var organizationCache = ignite.GetOrCreateCache<int, Organization>(
new CacheConfiguration(OrganizationCacheName, new QueryEntity(typeof(int), typeof(Organization))));
// Populate cache with sample data entries.
PopulateCache(employeeCache);
PopulateCache(employeeCacheColocated);
PopulateCache(organizationCache);
// Run SQL query example.
SqlQueryExample(employeeCache);
// Run SQL query with join example.
SqlJoinQueryExample(employeeCacheColocated);
// Run SQL query with distributed join example.
SqlDistributedJoinQueryExample(employeeCache);
Console.WriteLine();
}
Console.WriteLine();
Console.WriteLine(">>> Example finished, press any key to exit ...");
Console.ReadKey();
}
/// <summary>
/// Queries employees that have provided ZIP code in address.
/// </summary>
/// <param name="cache">Cache.</param>
private static void SqlQueryExample(ICache<int, Employee> cache)
{
const int zip = 94109;
var qry = cache.Query(new SqlFieldsQuery("select name, salary from Employee where zip = ?", zip));
Console.WriteLine();
Console.WriteLine(">>> Employees with zipcode {0} (SQL):", zip);
foreach (var row in qry)
Console.WriteLine(">>> [Name=" + row[0] + ", salary=" + row[1] + ']');
}
/// <summary>
/// Queries employees that work for organization with provided name.
/// </summary>
/// <param name="cache">Cache.</param>
private static void SqlJoinQueryExample(ICache<AffinityKey, Employee> cache)
{
const string orgName = "Apache";
var qry = cache.Query(new SqlFieldsQuery(
"select Employee.name from Employee, \"dotnet_cache_query_organization\".Organization " +
"where Employee.organizationId = Organization._key and Organization.name = ?", orgName));
Console.WriteLine();
Console.WriteLine(">>> Employees working for " + orgName + ":");
foreach (var entry in qry)
Console.WriteLine(">>> " + entry[0]);
}
/// <summary>
/// Queries employees that work for organization with provided name.
/// </summary>
/// <param name="cache">Cache.</param>
private static void SqlDistributedJoinQueryExample(ICache<int, Employee> cache)
{
const string orgName = "Apache";
var qry = cache.Query(new SqlFieldsQuery(
"select Employee.name from Employee, \"dotnet_cache_query_organization\".Organization " +
"where Employee.organizationId = Organization._key and Organization.name = ?", orgName)
{
EnableDistributedJoins = true,
Timeout = new TimeSpan(0, 1, 0)
});
Console.WriteLine();
Console.WriteLine(">>> Employees working for " + orgName + " (distributed joins enabled):");
foreach (var entry in qry)
Console.WriteLine(">>> " + entry[0]);
}
/// <summary>
/// Populate cache with data for this example.
/// </summary>
/// <param name="cache">Cache.</param>
private static void PopulateCache(ICache<int, Organization> cache)
{
cache.Put(1, new Organization(
"Apache",
new Address("1065 East Hillsdale Blvd, Foster City, CA", 94404),
OrganizationType.Private,
DateTime.Now));
cache.Put(2, new Organization("Microsoft",
new Address("1096 Eddy Street, San Francisco, CA", 94109),
OrganizationType.Private,
DateTime.Now));
}
/// <summary>
/// Populate cache with data for this example.
/// </summary>
/// <param name="cache">Cache.</param>
private static void PopulateCache(ICache<AffinityKey, Employee> cache)
{
cache.Put(new AffinityKey(1, 1), new Employee(
"James Wilson",
12500,
new Address("1096 Eddy Street, San Francisco, CA", 94109),
new[] {"Human Resources", "Customer Service"},
1));
cache.Put(new AffinityKey(2, 1), new Employee(
"Daniel Adams",
11000,
new Address("184 Fidler Drive, San Antonio, TX", 78130),
new[] {"Development", "QA"},
1));
cache.Put(new AffinityKey(3, 1), new Employee(
"Cristian Moss",
12500,
new Address("667 Jerry Dove Drive, Florence, SC", 29501),
new[] {"Logistics"},
1));
cache.Put(new AffinityKey(4, 2), new Employee(
"Allison Mathis",
25300,
new Address("2702 Freedom Lane, San Francisco, CA", 94109),
new[] {"Development"},
2));
cache.Put(new AffinityKey(5, 2), new Employee(
"Breana Robbin",
6500,
new Address("3960 Sundown Lane, Austin, TX", 78130),
new[] {"Sales"},
2));
cache.Put(new AffinityKey(6, 2), new Employee(
"Philip Horsley",
19800,
new Address("2803 Elsie Drive, Sioux Falls, SD", 57104),
new[] {"Sales"},
2));
cache.Put(new AffinityKey(7, 2), new Employee(
"Brian Peters",
10600,
new Address("1407 Pearlman Avenue, Boston, MA", 12110),
new[] {"Development", "QA"},
2));
}
/// <summary>
/// Populate cache with data for this example.
/// </summary>
/// <param name="cache">Cache.</param>
private static void PopulateCache(ICache<int, Employee> cache)
{
cache.Put(1, new Employee(
"James Wilson",
12500,
new Address("1096 Eddy Street, San Francisco, CA", 94109),
new[] {"Human Resources", "Customer Service"},
1));
cache.Put(2, new Employee(
"Daniel Adams",
11000,
new Address("184 Fidler Drive, San Antonio, TX", 78130),
new[] {"Development", "QA"},
1));
cache.Put(3, new Employee(
"Cristian Moss",
12500,
new Address("667 Jerry Dove Drive, Florence, SC", 29501),
new[] {"Logistics"},
1));
cache.Put(4, new Employee(
"Allison Mathis",
25300,
new Address("2702 Freedom Lane, San Francisco, CA", 94109),
new[] {"Development"},
2));
cache.Put(5, new Employee(
"Breana Robbin",
6500,
new Address("3960 Sundown Lane, Austin, TX", 78130),
new[] {"Sales"},
2));
cache.Put(6, new Employee(
"Philip Horsley",
19800,
new Address("2803 Elsie Drive, Sioux Falls, SD", 57104),
new[] {"Sales"},
2));
cache.Put(7, new Employee(
"Brian Peters",
10600,
new Address("1407 Pearlman Avenue, Boston, MA", 12110),
new[] {"Development", "QA"},
2));
}
}
}